CAP'EM at EcoBuild '10

As part of the CAP'EM presentation at EcoBuild (the UK's green building expo) marking the completion of the first 6 months of a four year programme, GreenSpec provided the following illustrations of a small variety of construction techniques employing 'eco-materials'.

NB

Whilst reasonable care has been taken to ensure that the information included in these drawings was correct at time of publication, final detailing remains the responsibility of the designer.

Eaves detail with insitu hemp-lime

From outside to inside:

Roof:
• Reused or recycled slate roof covering
• Reclaimed, locally grown or FSC durable softwood battens and cross battens
• Wind-tight 'breathing' roof membrane
• Rigid insulation – dense wood fibre
• Rigid insulation - with hemp-lime applied underside

Wall:
• Render directly applied to hemp-lime
• Hemp-lime applied to depth to suit required thermal performance
• Minimum 19 x 38mm horizontal FSC softwood battens
• Reclaimed, locally grown or FSC softwood timber frame and bracing.

For more details of this and other construction methods using hemp-lime (eg Hemcrete), please visit www.limetechnology.co.uk

 

Wall detail

From outside to inside:

• lime render
• Dense wood fibreboard insulation (eg Gutex ) applied to depth to suit required thermal performance
• Structural FSC Solid Wood Panel (SWP) (eg Dowelled wood panel (DWP) Cross laminated timber panel (CLTP))
• Airtightness membrane - vapour open (eg pro clima DB+)
• service zone
• Clay/reed board and clay finish (eg Claytec clay board)

 

Wall / upper floor junction

wall from outside to inside:
• Rreclaimed, locally grown or FSC durable hardwood boarding
• Reclaimed, locally grown or FSC durable hardwood battens
• Dense wood-fibre breathing sheathing board
• Cellulose fibre poured insulation (eg Excel Warmcel 500)
• Between I-studs (eg Excel Masonite)
• Airtightness membrane - vapour open (eg pro clima DB+)
• Service zone
• Structural FSC Solid Wood Panel (SWP) (eg Dowelled wood panel (DWP) Cross laminated timber panel (CLTP))

flooring:
• Reclaimed, locally grown or FSC timber sheeting / boarding
• Recycled rubber-based accoustic insulation layer
• Structural FSC Solid Wood Panel (SWP) flooring and ceiling soffit with cover strip to cavity to protect end grains.

 

Wall / ground floor junction

wall from outside to inside:
• Reclaimed, locally grown or FSC durable hardwood rainscreen cladding
• Reclaimed, locally grown or FSC durable hardwood timber battens
• 40 mm tongue & grooved (T&G) jointed dense wood fibre boards built up to provide required thermal performance
• Wood-wool insulation batts lining (eg Heraklith)
• Airtightness membrane - vapour open (eg pro clima DB+)
• service zone
• Clay/reed board and clay finish (eg Claytec clay board)

floor:
• Reclaimed, locally grown or FSC durable hardwood timber flooring on FSC softwood battens
• Dense wood fibre board thermal insulation
• Encased foamed glass slab thermal break (eg Foamglas Perinsul) to foot of wall
• Clay Powder and fabric Damp Proof Membrane (DPM) (eg ABG Claymat)
• Eco-concrete mix slab (E.g. GGBS cement and recycled, secondary or manufactured aggregates)
• Pebble drainage and splash disturbance