Wt5912 2012 wk11
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Transcript of Wt5912 2012 wk11
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A GUIDANCE
PACKAGE FOR
TEACHERS
C o u r s e I n v o l v e d : G r a d u a t e D i p l o m a i n T e c h n o l o g y E d u c a t i o n
U n i v e r s i t y o f L i m e r i c k
D e p a r t m e n t o f D e s i g n & M a n u f a c t u r i n g T e c h n o l o g y
L e c t u r e r / T e a c h e r : M r . J o s e p h L y s t e r
A c a d e m i c Y e a r 2 0 1 2 : S p r i n g S e m e s t e r
T e c h n i c a l S u p p o r t : M r . J o e M u r r a y & M r . R i c h i e H e n n e s s y
N o t e s P r e p a r e d b y : M r . J o s e p h L y s t e r
A v a i l a b l e o n w w w . s l i d e s h a r e . n e t / W T 4 6 0 3
TECHNOLOGY EDUCATION AND WORKSHOP PRACTICE 2: MATERIALS AND CONSTRUCTION: ALL AREAS OF INTEREST UNIT 8: WEEK 11
UNIVERSITY of LIMERICK
OLLSCOIL LUIMNIGH
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Learning Areas to be Presented
1. Rural/Urban Development and Planning
2. Substructure
3. Superstructure
4. Mechanical Services
5. Heat and Thermal Insulation
6. Building Energy Rating
7. Low-Environmental Impact Design
8. Other Technologies and Building Systems
CONSTRUCTION STUDIES
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ONE-OFF
HOUSING RURAL DEVELOPMENT
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PLANNING PROCEDURES
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SITE SELECTION
UNIVERSITY of LIMERICK
Check the development plan
Reading the landscape
Choosing where to build
Assessing a site’s potential
Linking with the land
Summary & Checklist
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CHECK DEVELOPMENT PLAN
UNIVERSITY of LIMERICK
Check with County Council/Local Authorities planning policies & procedures
Policies restricting/permitting development in certain areas e.g.
Greenbelt, Coastal Areas, Rural Housing Control Zone etc.
Scenic Amenity Maps - scenic routes and scenic landscapes;
Heritage maps - Natural Heritage Areas (NHA), Special Protection Areas
(SPA) and candidate Special Area of Conservation
(SAC) and Areas of Geological Interest;
Landscape Character Maps;
Archaeology policies, the Record of Protected Structures and conservation
policies.
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READING LANDSCAPE
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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CHOOSING WHERE TO BUILD ON SITE
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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ASSESSING SITES POTENTIAL
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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LINKING WITH THE LAND
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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LINKING WITH THE LAND
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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SITE CONSIDERATIONS
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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DWELLING ORIENTATION
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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DWELLING ORIENTATION
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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DWELLING ORIENTATION
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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DWELLING ORIENTATION
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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DWELLING ORIENTATION
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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DWELLING ORIENTATION
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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SITE BOUNDARIES
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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SITE ENTRANCES
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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BUILDING DESIGN
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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BUILDING DESIGN
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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BUILDING DESIGN
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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BUILDING DESIGN
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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SKETCH DEVELOPMENT: SITE
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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SKETCH DEVELOPMENT: PRE-PLANNING
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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SKETCH DEVELOPMENT: NARROW PLAN DESIGN
UNIVERSITY of LIMERICK Cork Rural Design Guide 2006
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LARGE SCALE
DEVELOPMENT URBAN DEVELOPMENT
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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NEIGHBOURHOOD
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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SITE
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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HOME
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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PICTURING EVENTS
UNIVERSITY of LIMERICK (Urban Design Manual 2006)
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KINGSPAN LIGHTHOUSE
UNIVERSITY of LIMERICK (Kingspan 2006)
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KINGSPAN LIGHTHOUSE
UNIVERSITY of LIMERICK (Kingspan 2006)
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KINGSPAN LIGHTHOUSE
UNIVERSITY of LIMERICK (Kingspan 2006)
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KINGSPAN LIGHTHOUSE
UNIVERSITY of LIMERICK
Solar Gain and Shading
(Kingspan 2006)
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KINGSPAN LIGHTHOUSE
UNIVERSITY of LIMERICK (Kingspan 2006)
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
Beddington Zero Energy Development
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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GLOBAL EXAMPLES INCLUDING THOSE WITH
BIOMIMICRY INSPIRATION
UNIVERSITY of LIMERICK
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TO GROUND
FLOOR LEVEL SUBSTRUCTURE
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TRIAL HOLE
Trial Hole: 1m² x 1.5m Deep
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SITE LEVEL AND PROFILING
Site Level and Profiling
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SITE LEVEL AND PROFILING
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SITE LEVEL
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FOUNDATIONS
Majority of buildings
Continuous strip
Reinforced concrete
Rests on the soil
Depth and Width
Soil type and
Building load
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TRADITIONAL STRIP
Traditional Strip foundation
Most commonly used
Usual 1050 X 350mm
Suitable for –
Average – Good bearing
capacity soils
Not suitable for –
Very soft clays
Silt
Peat
Badly made – up - ground
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STEPPED STRIP
Stepped Strip foundation
Sloping sites
Reduce excavation
Step depths
112mm or 225mm
Overlap of concrete
Minimum 300mm
Not less than depth
of concrete foundation
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WIDE STRIP
Wide Strip foundation
Not common
Reinforced
Transverse reinforcement
Resist tensions
Wider than 900mm
Suitable for –
Ground with low bearing capacity
Expensive
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DEEP STRIP
Deep Strip foundation
Rests on suitable strata
Excavate 900mm or more
Trench filled within 150mm
of ground level
Width depends on depth
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RAFT FOUNDATION
Raft foundation
Suitable for –
Low load bearing soils
Soft natural ground
Very soft clays
Silt
Peat
Made – up – ground
Average – Good bearing capacity soils instead of strip foundations
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RAFT FOUNDATION
Raft foundation
Concrete slab
Reinforced slab
Up to 300mm thick
Whole building area
Pavement
All Loads transmitted
Slab thicker under load bearing walls
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PILE FOUNDATION
Carry and transfer loads
Sub-soils of poor bearing capacity
Deeper soil and rock of a high bearing capacity
Avoids excessive excavation
Pile Foundation
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PILE FOUNDATION
Made from
Wood
Steel
Concrete
Placed in ground
Driven
Drilled
Jacked
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MACHINERY
Equipment
To clear site
Hymac’s
JCB’s
To remove / move materials
Tractors
Trailers
Dumpers
Heavy Machinery
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SITE ENTRANCE
Images courtesy of: Mr John Joyce
Site Entrance
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BUCKET TYPES
1050 mm bucket
External – cavity leaf
wall foundations
350 mm bucket
Internal – single leaf
wall foundations
Large bucket
Used to clear site’s topsoil
Images courtesy of: Mr John Joyce
Site Clearance
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CLEARANCE/EXCAVATION
Perimeter trenches dug with 1050 mm bucket
Internal trenches dug with 350 mm bucket
Images courtesy of: Mr John Joyce
Site Clearance/Excavation
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CLEARANCE/EXCAVATION
Open Timbering Close Timbering
Excavation
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CLEARANCE/EXCAVATION
Excavation
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CLEARANCE/EXCAVATION
Mild steel bars
Provide tensile strength
Min. 25mm from surface
Prevents rusting
Adequate depth to support
Spacers
Position reinforcing bars
Provide the necessary cover Images courtesy of: Mr John Joyce
Excavation/Foundation Preparation
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LAYING FOUNDATION
Cement trucks pull in on site
Concrete poured directly into trench
Filled up level with tops of pegs
Levelled roughly with shovels
Top of wooden
peg to which the
foundation will
be levelled to
Images courtesy of: Mr John Joyce
Laying Foundation
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LAYING FOUNDATION
Tapered off level with tamping board
Images courtesy of: Mr John Joyce
Laying Foundation
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LAYING FOUNDATION
Images courtesy of: Mr John Joyce
Laying Foundation
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RISING WALLS
Images courtesy of: Mr John Joyce
Foot/Rising Walls
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RISING WALLS
Images courtesy of: Mr John Joyce
Foot/Rising Walls
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RISING WALLS
Images courtesy of: Mr John Joyce
Foot/Rising Walls Provision for Services
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HARDCORE
Foot/Rising Walls Hard-core fill
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FOUNDATION INSULATION
Images courtesy of: Mr John Joyce
Foot/Rising Walls Radon/DPC/Insulation
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PROVISION OF SERVICES
Foot/Rising Walls Plumbing
Images courtesy of: Mr John Joyce
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SUBFLOOR
Subfloor
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EXTERNAL WALLS
External Walls
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STANDARD
BUILDING
SYSTEMS SUPERSTRUCTURE
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FLOORS
Types of Ground Floor
Construction
Solid Concrete Floor
Suspended Timber Floor
Precast Concrete Floor
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FLOORS
Solid Concrete Floor
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FLOORS
Solid Concrete Floor
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FLOORS
Solid Concrete Floor
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FLOORS
Solid Concrete Floor
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FLOORS
Suspended Timber Floor
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FLOORS
Suspended Timber Floor
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FLOORS
Precast Concrete Floor
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FLOORS
Precast Concrete Floor
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FLOORS
Hollow Block Wall Raft Foundation
Positioning of Radon:
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ENTRY
Wheel Chair Access
Technical Guidance Document M
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Primary Types of
Residential Construction in
Ireland
Concrete Cavity
Inner/Outer Block Leaf(s)
Timber Frame
Inner Timber Frame/ Outer Block Leaf
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Strength and stability
Weather resistance
Fire resistance
Thermal insulation
Sound insulation
Functions of external walls
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Cill Detail
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Cill Detail
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Cill Detail
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Steel Lintel Detail
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Steel Lintel Detail
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Pre-Stressed Concrete Lintel Detail
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Comparative Lintel Detail
Steel Lintel Steel Brick Tray Lintel +
Pre-Stressed Concrete
Lintel
Pre-stressed
Concrete Lintel
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CONCRETE CAVITY BUILDING SYSTEM
External Concrete Cavity: Pre-Stressed Concrete Lintel Detail
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TIMBER-FRAME BUILDING SYSTEM
External Leaf Construction: Timberframe – Window Detail
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TIMBER-FRAME BUILDING SYSTEM
Timberframe
Construction: Floor Level
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: Floor Level
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: External Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: External Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: External Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: External Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: External Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: Closing Around Openings/ Lintel-Header
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: Cill Detail
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TIMBER-FRAME BUILDING SYSTEM
External Leaf Construction: Timberframe – Cill Detail
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TIMBER-FRAME BUILDING SYSTEM
Timberframe
Construction: External Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe
Construction: Combined Floors
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: Gable Chimney
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: Party Wall
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TIMBER-FRAME BUILDING SYSTEM
Timberframe Construction: Party Wall
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FIRST FLOOR CONSTRUCTION
Internal First floor: Floor Detail
Solid Bridging Herringbone Strutting
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FIRST FLOOR CONSTRUCTION
Internal First floor: Floor Detail
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FIRST FLOOR CONSTRUCTION
Internal Construction: First Floor – Web Truss
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FIRST FLOOR CONSTRUCTION
Internal Construction: First Floor – Web Truss
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FIRST FLOOR CONSTRUCTION
Internal First floor: Floor/Stud Partition Detail
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FIRST FLOOR CONSTRUCTION
Internal First floor: Floor/Stud Partition Detail
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STAIRS
Internal
Construction: Stairways
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STAIRS
Internal
Construction: Stairways
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STAIRS
Internal
Construction: Stairways
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STAIRS
Internal
Construction: Stairways
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss – Around Chimney
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss – Around Chimney
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PRE-FABRICATED TRUSS ROOF
Roof
Construction: Pre-Fabricated Truss –
Around Chimney
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WATER CISTERN SUPPORT
Roof Construction: Water Cistern Location/Support
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WATER CISTERN SUPPORT
Roof Construction: Water Cistern Location/Support
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss – Gable Ladder
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss Roof – Eaves/Rafters/Joists
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss Roof – Gable
Ladder/Spandrel
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss – Hip End
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss – Hip End
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PRE-FABRICATED TRUSS ROOF
Roof Construction: Pre-Fabricated Truss – Fink Truss
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TARDITIONAL CUT ROOF CONSTRUCTION
Roof Construction: Traditional Cut Roof
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TARDITIONAL CUT ROOF CONSTRUCTION
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TARDITIONAL CUT ROOF CONSTRUCTION
Roof Construction: Traditional Cut Roof – Roof Layout
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TARDITIONAL CUT ROOF CONSTRUCTION
Roof
Construction: Traditional Cut Roof –
Hip
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TARDITIONAL CUT ROOF CONSTRUCTION
Roof Construction: Traditional Cut Roof – Birds Mouth/Box Dormer
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TARDITIONAL CUT ROOF CONSTRUCTION
Roof Construction: Traditional Cut Roof – Dormer
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TARDITIONAL CUT ROOF CONSTRUCTION
Roof
Construction: Traditional Cut Roof –
Conversion
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ON-SITE ROOFING
Roof Construction: Pre-Fabricated Truss
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ON-SITE ROOFING
Roof Construction: Pre-Fabricated Truss
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ON-SITE ROOFING
Roof Construction: Pre-Fabricated Truss
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ON-SITE ROOFING
Roof Construction: Pre-Fabricated Truss
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EXTERNAL RENDER
External Leaf Construction: Corner Brick, Block & Scratch Coat
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MECHANICAL
SYSTEMS BUILDING SERVICES
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Department of Design & Manufacturing Technology
Syllabus Outline: 1. Services and External Works – Mechanical services,
electricity, wastewater treatment, sewage, etc…
2. Heat and Thermal Effects In Buildings – Construction
type, Insulation, material conductivity, air tightness etc…
3. Illumination In Buildings – Natural Light, glazing, LUX,
heat transfer, dwelling orientation etc…
4. Sound In Buildings – Insulation etc…
BUILDING SERVICES
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Water Systems • Direct Cold Water System
• Indirect Cold Water Systems
• Direct Hot Water Systems
• Indirect Hot Water (Vented/Un-vented)
• Solar Water Heating System
• Geothermal Water Heating System
• Boilers: • Oil-Fired
• Gas-Fired
• Solid Fuel
• Wood – Chip
• etc...
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WATER SYSTEMS
•Direct Cold Water System
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WATER SYSTEMS
•Indirect Cold Water System
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WATER SYSTEMS
•Direct Hot Water System
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WATER SYSTEMS
•Indirect Hot Water System
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WATER SYSTEMS
•Water Cistern/Tank
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WATER SYSTEMS
Indirect Hot Water System with Two Pipe
Radiator System
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WATER SYSTEMS
Indirect Hot Water System with Two Pipe Radiator
System
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WATER SYSTEMS
Indirect Hot Water
System with Two Pipe
Radiator System
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WATER SYSTEMS
Indirect Hot Water
System with Two
Pipe Radiator
System
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WATER SYSTEMS
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WATER SYSTEMS
•Two Pipe Radiator
System
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WATER SYSTEMS
•Indirect Hot Water
System with Two Pipe
Radiator System
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WATER SYSTEMS
•Solar/Woodchip
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WATER SYSTEMS
•Solar Hot Water System with Two Pipe
Radiator System
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WATER SYSTEMS
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WATER SYSTEMS
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WATER SYSTEMS
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WATER SYSTEMS
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WATER SYSTEMS
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WATER SYSTEMS
How the evacuated tube works; Sunlight enters through the outer glass tube, hits the absorber – where energy is
converted to heat Heat is transferred to liquid inside inner tube- vacuum between tubes prevents
heat loss. The hot liquid rises to the top of the copper tube where it transfers heat to the
pipework coming from the cylinder, this pumps through the cylinder heating water.
The liquid is cooled as it transfers the heat and flows back down to be reheated.
Cylinder Specifications. The cylinder is insulated to meet the building regs in TGD L1.4.4.2 with 75mm
thick CFC free factory applied insulation and has its pipes coming from the tank insulated to 1m from the tank.
The cylinder has, as needed by 1.4.3.3 of TGD L, a thermostat which can turn off supply of heat when desired storage temperature is reached.
It will be fitted by a qualified person as required by 1.2.7. Back up Boiler.
The back up boiler is an electric boiler which will be powered by our windmill in ideal circumstances, it will also be connected to the grid as an extra back up and also as the windmill is required to be connected to the grid.
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WASTEWATER SYSTEMS
Wastewater Systems
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WASTEWATER SYSTEMS
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WASTEWATER SYSTEMS
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WASTEWATER SYSTEMS
•Backfill/Positioning/Rodding Eye
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WASTEWATER SYSTEMS
Manhole
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WASTEWATER SYSTEMS
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WASTEWATER SYSTEMS
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WASTEWATER SYSTEMS
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WASTEWATER SYSTEMS
Traps/Pipes
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WASTEWATER SYSTEMS
• Wastewater is removed from the dwelling by a system of pipe work
which carries the waste fluids away from the appliances.
• Purpose of pipe work – Transport fluids, Control leakage, Resist deposits
of solids, Resist blockages
• Waste pipes are commonly - Ø32mm for hand basins, Ø40mm for
bath/shower, Ø100mm from toilet (w.c)
• Ø100mm for discharge stack
• Ø40mm/Ø32mm pipes from the showers and sinks have a slope of
18/90mm/m, with a max length of 3 metres to the stack
• Ø100mm pipes from the toilets with a slope of 9mm/m, with a max
length of 6 metres to the stack, a macerator unit will be used if the
distance exceeds 6 metres.
• Two hundred mm minimum centre line radius at the bottom of the stack
for a gradual turn.
• The stack (Ø100mm) has to be 900mm minimum above the window in
this case as it is within three metres of the window.
Wastewater
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WASTEWATER SYSTEMS
• Drainage pipes are laid in a bed of 10mm aggregate covered in 40mm of
crushed stone and the trench is backfilled with the excavated clay. 300mm
cover should be provided to protect the pipe.
• Soak pit used to take the grey water from the kitchen sink, dishwasher and
the washing machine.
• Use of “P” traps to prevent odours entering the house, with a seal depth of
75mm minimum.
• Air admittance valve can be used to combat incorrect installation and design
by providing a source of air when a vacuum may be generated and
syphonage can occur.
• A wastewater Puraflo Liquid Effluent Treatment System can be easily
integrated with a new or even existing septic tank and is constructed to meet
building regulations.
• Wastewater flows from the home into a watertight primary/ septic tank
Wastewater
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WASTEWATER SYSTEMS
• Capacity of the tank is calculated using the formula C = (180P+2000)
• The solids settle and the liquid effluent flows by gravity into a pumping chamber.
• The pumping chamber is fitted at least 0.5m from the septic tank. The septic
tank outlet is connected to the pumping chamber using a 100mm diameter pipe
at a gradient of 1 in 100. The peat filter is located 7 metres from the septic tank.
• The liquid effluent is pumped intermittently into the Puraflo modules and
distributed evenly onto the biofibrous peat filter.
• A combination of biological, chemical and physical processes treat the
wastewater as it filters through the biofibrous peat in the modules.
• Treated liquid emerges from the Puraflo unit for dispersal into the ground
through a soil polishing filter.
• High level of treatment achieved, energy efficient, low running costs, consistent
operational efficiency, minimal maintenance required, odour-free wastewater
treatment, Bord na Móna warranty, service agreements and call-out service,
alarm system included if the level of waste water in the pumping chamber
becomes to high and it is installed by Bord na Móna Environmental Ltd.
Bord Na Mona Puraflo System
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WASTEWATER SYSTEMS
Bord Na Mona
Puraflo System
(Hickey 2006)
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WASTEWATER SYSTEMS
• A unit for a single house has two modules of total area 5m2, which can
serve up to 6 people.
• An area is prepared and levelled to create an even surface on which to
place concrete blocks and lintels to support the modules. Broken stone
approximately 25–50mm is filled level with the top of the concrete
blocks and lintels over are placed over this area to a depth of 200mm
approx.
• I chose this as it only uses an intermittent pump so it only pumps the
water on a “needed basis”, unlike other new systems which constantly
need a power supply, this saves on the cost and usage of electricity and a
power loss would not disrupt the system like it could do with others.
• The Puraflo system is Irish Agrément certified & EPA compliant.
Bord Na Mona
Puraflo System
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WASTEWATER SYSTEMS
(Hickey, 2006)
Bord Na Mona
Puraflo System
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WASTEWATER SYSTEMS
Bord Na Mona
Puraflo System
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WASTEWATER SYSTEMS
Soak Pit
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WASTEWATER SYSTEMS
Manhole
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WASTEWATER SYSTEMS
Biocycle Treatment
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WASTEWATER SYSTEMS
• Mechanical Aeration Waste Water Treatment System
• Given the layout and considerations of the dwelling . I decided to go with
a 12,000 litre Biocycle treatment unit. This system is highly efficient and
has a long de-sludge interval period.
• It is environmental and user friendly.
• The unit will cater for all foul waste included waster containing household
detergent. These detergents do not affect the functionality of the unit.
• The unit consists of 4 chambers
Biocycle Treatment
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WASTEWATER SYSTEMS
1 Primary- Big chamber to allow for retention of sludge. Sludge broke
down with anaerobic bacteria.
2 Aeration- Aerobic bacteria break down the effluent by a culture of
bacteria within a process known as submerged aerated biological
filtration. Oxygen, to support the degradation processes, is introduced by
a small air pump.
3 Clarification- The clarification chamber is designed to provide
quiescent conditions allowing any bacterial flocs remaining in the
effluent to settle out.
4 Pump- The large pump chamber allows the treated effluent to be
stored before it is pumped to the polishing filter or surface irrigation
system. The pump is operated intermittently to ensure low energy usage.
Biocycle Treatment
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WASTEWATER SYSTEMS
Advantages:
EN 12566-3 accredited (new standard for wastewater treatment systems)
97.5% reduction in BOD5 (Biological Oxygen Demand)
97% reduction in S.S. (Suspended Solids)
Unrivalled sludge storage
Low electrical running costs
Life span in excess of 60 years
• Brac Greywater recycling system RGE – 250
This system is perfectly designed for a family of 5. The RGW-250 is the popular tank, designed for homes with up
to 6 people who want to save money on their water bill, while helping the environment.
• How it works...
Greywater from showers, baths, sinks and the washing machine go directly into the Brac Systems holding tank.
Here the water is filtered and ready for delivery to toilets.
• Advantages
Two thirds of our water is used to shower, bathe and do laundry; another third is used to flush the toilet.
By reusing some water to flush toilets, the Brac System saves 35 to 40% of a household’s annual water
consumption.
Extends a household’s water supply, thus lessening its’ impact on the environment.
Reduces the risk of water shortages in hot climates where wells tend to dry up.
Biocycle Treatment
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WASTEWATER SYSTEMS
Biocycle Treatment
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WASTEWATER SYSTEMS
(Hickey, 2006)
Biocycle Treatment
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HOW TO
CALCULATE
HEAT LOSS U-VALUES
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U-VALUES
The U-Value question is not a compulsory question but it is contained within the options question, usually Question 5 on the paper. The question generally contains 3 parts – A, B, and C. A. Generally requires the visual manipulation (Section view sketch +Labelling!!!), the tabulation of data in logical and functional order, and the calculation of a U-Value for the material data given. B. There are variations to this part. The typical variations are the calculation of oil used with subsequent calculation of cost loss, the sizing of insulation omitted from the initial question or insulation required achieved the required U-value standard, the size of glazing units with their impact on the U-Value performance, and there are variations to the afore mentioned but nothing too different. C. This part generally requires a recommendation to improve or show the difference between different systems presented in the question. Sketches and notes usually apply and it serves to show you have an understanding for the area at hand.
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U-VALUES
•The U-Value question can require work but it is as hard as you make it!!! It is an achievable question that with a bit of practice can be attempted by all pupils. •It is a step by step style question with the variation on part B and C of the question that can also be well prepared as there are about 4 different variations that can be asked of you in these part. •The question requires the understanding of U-Values and the ability of students to use the data correctly to show visual, arithmetic, data comprehension/manipulation/tabulation and procedural capabilities.
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U-VALUES
Do not be intimidated by the mathematical problems
presented in this question. The application of simple
arithmetic is all that is required i.e. - / + / ÷ / x
You will need a calculator as decimalisation is required, so be competent and comfortable in the use of your calculator.
Always re-check your calculations!!!
Also do not be intimidated by the Units that apply to the different variants. Once you have learnt them and consistently use them correctly whilst practising the question it should not be a problem. If you don’t apply the unit to the calculations you will lose valuable marks!!
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U-VALUES
Content: What are we calculating?
In the case of this question the area of U-Values apply to
the external envelope of the building i.e. The external wall
structure, the foundation structure, and the roof structure.
External wall structure:
Block cavity construction and timberframe construction,
glazing etc...
Roof Structure: Flat and Pitched with Ceiling, etc...
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U-VALUES
U-Values are essentially the measure of heat lost through the fabric of the buildings external envelope.
Under current building regulations 2007 Technical Guidance Document L on The Conservation of Fuel and Energy it is stated that buildings by standard should be built to achieve a U-value of at least 0.220 W/m²⁰K.
This is achieved by adhering to the building codes and standards where sustainability and material selection combined with an efficient construction process all serve to limit the impact on the environment.
When we lose heat we lose money€€€€ but most concerning is that to replace heat and energy loss we expend further energy resources creating a greater demand and in turn showing further disrespect for our environment.
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U-VALUES
Typical Heat Loss Percentages
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U-VALUES
Aim: The aim is to make you the student aware of the relevant U-values that can be achieved from a combination of materials that form the external envelope of a building.
In doing so you will begin to realise the difference between materials and their ability to resist heat/energy loss. The influence of insulation will be a key factor and it is advised that you take time to investigate different insulation products.
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U-VALUES
In terms of the question what should we know?
The Materials Presented i.e. block, timber, etc.
1. U-Value =Thermal Transmittance (W/m² ⁰k)
2. R = Resistance (m² ⁰k/W)
3. r = Resistivity N/A
4. k = Conductivity (W/m⁰k)
5. T = Thickness (m = metres)
W = Watts, m = metres, ⁰k = degree Kelvin ( or alternatively ⁰C = degree Celsius)
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U-VALUES
Terms & Definitions: Definitions are very important and they are often over looked by students. In understanding a definition you can make sense of the data presented to you in the question.
It will enable you to visualise the process a lot easier and understand the thermal data difference between relevant materials so you can form a guess estimate by where you can measure the outcome of your work through out the question. It is basically a level of common sense that will serve to build your competence in the question.
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U-VALUES
Thermal Transmittance (U-Value)
Unit Value = W/m² ⁰k
Definition: A measure of the rate at which heat passes through a particular element of a building when unit temperature difference is maintained between the ambient air temperatures on each side. The U-Value takes into account the resistances of various materials, the surface resistances and the cavity.
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U-VALUES
Thermal Resistance (R)
Unit Value = m² ⁰k/W
Definition: A measure of a materials ability to resist the flow of heat energy. The higher the R-Value the greater the resistance of the material.
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U-VALUES
Thermal Conductivity (k)
Unit Value = W/m⁰k
Definition: A measure of a materials ability to conduct heat energy.
When comparing insulation products the k-value is used as the comparative benchmark as the lesser the k-value the better the product in terms of performance. However the constituents of the insulation material is always the greatest debate in terms of its availability, embodied energy and impact on the environment.
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U-VALUES
Example of a typical Question: As Presented
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U-VALUES
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U-VALUES
Step 1: Make a Sketch of the information given and label !!!
Step 2: Tabulate all data as shown
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U-VALUES
Step 2: Continued.
When filling in the material thickness column it is
important that you convert the data to metres (m) as the
question gives it in millimetres (mm). This catches alot of
students out so ensure to do this before you fill the table in.
Example: Block = 100mm, so 100÷1000= 0.1m, this is the
value that is input into the table. You divide all thickness
and width data by 1000 to convert from mm to m.
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U-VALUES
Step 3: Calculations
Formula 1: R = T/k, you may have to manipulate this formula to
find data so here is a tip if switching formula’s around confuses
you!!!
R²=T⁸/k⁴, note the numbers in the power position. 2 = 8/4, so if i wanted to find T then 8=4x2 (T=k x R) and if you follow the numbers in the power position as shown below then you can see how this can guide you correctly.
T⁸=k⁴xR² (8=4x2). This is just a simple method to avoid confusion.
Remember R = Resistance, k= Conductivity, and T = Thickness (m)
Also in the event of a resistivity value being given you may apply this formula, “remember resistivity = r”, R = T x r
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U-VALUES
Step 3: Continued.
Once the R- Column is complete the you get the sum of
that column to calculate the R- total.
Step 4: Calculating U-Value
U-Value = 1/R total
Indicate all Unit values!!!
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U-VALUES
To attempt the part B questions please refer to the exam
solutions for guidance as follows.
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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U-VALUES
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LOW-
ENVIRONMENTAL
IMPACT PASSIVE DESIGN
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Orientation
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Orientation
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Notes on Glazing
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Room Layout & Solar Gain
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Thermal Mass/Space
Heating
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Materials etc...
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PASSIVE/LOW-ENVIRONMENTAL IMPACT
Materials etc...
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MECHANICAL VENTILATION & HEAT
RECOVERY (MVHR)
• MHRV-popular means of dealing with dampness and avoidable heat loss
• Cost effective, health beneficial and an efficient solution to saving energy
• MHRV works in the following way:
1. First set of ducts (red) collect moist, stale air from hotspots
2. Stale contaminated air travels through the HRV unit and released outdoors
3. Second set of ducts (blue) takes clean fresh air from outside
4. Both air streams pass through heat transfer exchanger where heat from the stale
air is used to warm the fresh incoming air. Air streams do not intersect. HRV unit
retains up to 95% of the heat emitted from the warm stale air
5. Above processes allow for clean filtered air to be distributed throughout the building
• MHRV offers year round comfort and has the ability to keep living areas at a warm
constant temperature
• Health benefits: alleviate symptoms of asthma, cold and hay-fever by removing airborne
pollution and irritants
• MHRV can also extract smoke and cooking odours
• Requires minimum maintenance and leads to increased security and noise reduction as
well as aesthetic enhancement
• New MHRV systems operate at 95% efficiency compared to 65% efficiency of older
systems
Mechanical Ventilation & Heat Recovery (MVHR)
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MECHANICAL VENTILATION & HEAT
RECOVERY (MVHR)
Mechanical Heat Recovery Ventilation (MHRV)
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MECHANICAL VENTILATION & HEAT
RECOVERY (MVHR)
Mechanical Heat Recovery Ventilation (MHRV)
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MECHANICAL VENTILATION & HEAT
RECOVERY (MVHR)
Mechanical Heat Recovery
Ventilation (MHRV)
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MECHANICAL VENTILATION & HEAT
RECOVERY (MVHR)
Mechanical Heat Recovery
Ventilation (MHRV)
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MECHANICAL VENTILATION & HEAT
RECOVERY (MVHR)
Mechanical Heat Recovery
Ventilation (MHRV)
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GREY/RAINWATER SYSTEMS
Rainwater Harvesting
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GREY/RAINWATER SYSTEMS
Grey Water Harvesting
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GREY/RAINWATER SYSTEMS
Rain Water/Grey Water Harvesting
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GREY/RAINWATER SYSTEMS
Tank Sizing
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ELECTRICAL SYSTEMS
Components of Electrical System
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ELECTRICAL SYSTEMS
Ring Main
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ELECTRICAL SYSTEMS
Radial Lighting Control
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ELECTRICAL SYSTEMS
Distribution Board/Fuse Box
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A GUIDE TO
TEACHING
BER
BUILDING ENERGY
RATING (BER)
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BER
T4 Recommendation
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BER
T4 Recommendation
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BER
T4 Recommendation
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BER
• Building Energy Rating (BER) grades the energy efficiency of a building
• A Dwelling with a high rating will save the owner/ occupier money in energy costs.
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BER
• New dwellings that
apply for planning
permission on/after
1st. January 2007.
BER required for:
• All existing buildings
offered for sale or rent
from 1st. January 2009.
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BER
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BER
• Thermal insulation of the building envelope.
• Heat gains through glazed openings.
• Ventilation and air permeability.
• Domestic hot water system and control.
• Space heating control and energy required.
• Lighting and internal heat gains.
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BER
What does BER measure?
• The BER measures energy use per square meter (floor area) of the dwelling per year.
•Measurement Unit
kWh/m2/yr
Kilo watt /
hour
1 kWh of
electricity costs
18 cent
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BER
Energy Labelling
Domestic Appliances
Energy labelling informs the consumer of costs.
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BER
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BER
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BER
Energy Costs and BER
Cost comparasions based on average energy costs for 2007 in a 250m2 dwelling
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BER
A dwelling built to the 2007/08 building regulations
should achieve a:
•B or C rating
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BER
• No obligatory minimum standard applies.
• BER must be produced by a registered BER Assessor.
• BER is valid for 10 years unless changes are made to the building.
• The BER is independant of how the occupants behave in the building.
• An advisory report must accompany a BER certificate
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BER
New build: To advise owners on how to use the
features in the building to
maximise energy efficiency
Existing buildings: To advise owners on the options for
upgrading of building to maximise
its energy efficiency
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BER
Calculating
the BER
Download from: http://www.seai.ie/Your_Building/BER/BER_Asse
ssors/Technical/DEAP/
DEAP Computer Software
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BER
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1. Dimensions: • The internal dimensions of the building envelope.
• New dwellings can be measured from the plans.
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3. Air Permeability
• Sealing of the building envelope.
• Blower door testing required on new dwellings.
• Required to be 10 m3/(h.m2) for new dwellings @ 50 pa.
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• Ceiling/Roof U-Value
4. Building elements (fabric heat losses)
• Wall U-Value
• Floor U-Value • Door & Window U-Values
• Thermal bridging factor typical 0.11 W/m2K
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5. Glazed area heat losses and gains
• Glazed area sizes.
• Orientation.
• Glazed unit U-Values
- Glazing
- Frame
• Solar transmittance.
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6. Details of the hot water system
Instant or storage system.
Insulation on pipe work.
Level of Insulation on storage cylinder
Temperature and time controls.
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7. Boiler and space heating details
Boiler efficiency %
Fuel used
Heating controls
Radiator’s or under floor heating
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7. Boiler and space heating details contd.
Insulation on pipe work.
Temperature and time controls.
Weather compensation controls.
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8. Renewable energy used, e.g.
• Solar photovoltaic
• Wind power
• Geothermal energy
• Solar Water heating
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9. Lighting provision in the dwelling.
• The percentage of energy efficient light fittings in the dwelling.
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The heating requirements for the dwelling will depend on:
10. Net space heat demand.
• The living area %.
• The total volume.
Living area is assumed to be heated to 21oC and the rest of the dwelling heated to 18oC.
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11. Thermal mass category of the building ranging from:
• Thermally massive construction. e.g.
concrete block with hollowcore.
• Thermally light construction e.g. timber frame
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BER
Download the DEAP software from:
http://www.seai.ie/Your_Building/BER/BER_Assessors/Technical/DEAP/
Install the software as per instructions.
Use the software to do a sample rating on the sample dwelling
using the data supplied.
Vary the inputs to improve the rating.
Energy rating worked example
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OTHER
LEARNING
AREAS ADDITIONAL AREAS
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• Construction industry roles - the key people involved in creating a house
• Safety on site - the importance of managing safety, accident rates, training, risk
assessment, safety statements etc.
• Social impact of planning - how planning can improve (and worsen) the lives of
ordinary people
• Natural construction materials (NB sustainable forestry sources etc.)
• Manufactured construction materials (NB waste, embodied energy etc.)
• Eco’ construction materials (NB waste, embodied energy etc.)
• Structural systems (concrete cavity) (NB airtightness, insulation)
• Windows & doors (modern designs only e.g. triple glazed)
• Energy sources: on grid energy
• Structural systems (timber frame cavity) (NB airtightness, insulation)
• Structural systems (Steel frame cavity) (NB airtightness, insulation)
• Structural systems (straw bale) (NB airtightness, insulation)
• Structural systems (SIP) (NB airtightness, insulation)
• Structural systems (ICF) (NB airtightness, insulation)
CONSTRUCTION STUDIES ADDITIONAL AREAS
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Department of Design & Manufacturing Technology
• Energy sources: off grid energy
• Energy performance of houses - house design & energy consumption - looking at
ordinary houses to explore factors that impinge on energy performance (use real
world examples)
• Passive design (e.g. passivhaus standards)
• Zero carbon housing
• Building energy rating - the purpose and process - comparing examples water
sources & treatment in Ireland (use real world Irish examples)
• Grey water supply (e.g. bord na mona rainsava)
• Hot water supply (boiler & solar)
• Drainage (municipal treatment of wastewater - use a real world example)
• Drainage (additional measures for one-off treatment - e.g. puraflow/ reed bed
etc.)
• Air flow, ventilation, m.v.h.r
• Airtightness, air pressure testing etc.
• Sound - insulation details
CONSTRUCTION STUDIES ADDITIONAL AREAS