An oak frame, built off steelwork let into the existing brickwork, with a green roof on top of it. The roof is the reason for most of the layers.
Flexible wood fibre went into the roof structure and Gutex boards under the rafters, with airtightness tape across every board joint. Pro Clima Solitex Plus and counterbattens above that keep a ventilated gap under the green roof, then an EPDM liner, a ventilation upstand, and finally the substrate and edging stones. Inside and out it is finished in Baumit breathable lime plaster and a lime skim. It flowers now.
Eco-Renovation is a great outfit, ready to take on an unusual project converting a conservatory to a sustainable garden room and rebuilding a brick shed, both with living roofs. Adam is always courteous, ready to discuss and explain and consider different options. He thinks round the problems and is backed up by the great practical experience of his workmen, the foreman in particular, and a very helpful office manager. We highly recommend this firm.
Preparation works to build new green roof
Steel work inserted to existing brickwork for new oak framed wall
Oak framed extension being built
Flexible wood fibre insulation being installed to new roof structure
Wood fibre boards installed onto rafters
Roof boarded ready for green roof
Roof boarded ready for green roof
Roof boarded ready for green roof
Insulating wood fibre boards fixed under roof joists
Gutex wood fibre insulation boards fixed under rafters
Airtightness tapes fitted around roof board joints
Airtightness tapes fitted around roof board joints
Oak framed extension
Gutex wood fibre insulation boards installed to walls and ceiling
Oak framed wall being completed
Installation of Pro Clima Solitex Plus breathable roofing membrane
Installation of counterbattens onto Solitex Plus roofing membrane to create ventilation for roof under green roof
Installation of EPDM waterproofing liner for green roof to extension in Guildford
EPDM and ventilation upstand
Installation of EPDM waterproofing liner
Upstand built for roof ventilation
Insulation to timber frame
Laying green roof substrate
Laying substrate and edging stones onto roof
Laying substrate and edging stones onto roof
Baumit breathable lime based plaster applied onto wood fibre insulation board
Baumit breathable lime based render applied onto wood fibre roof insulation board
Lime plaster insulated masonry wall
Application of finishing lime skim coat
Application of finishing lime skim coat
Application of finishing lime skim coat
Completed oak framed, insulated extension with green roof
Completed oak framed, insulated extension with green roof
Completed oak framed, insulated extension with green roof
Completed oak framed, insulated extension with green roof
Completed oak framed, insulated extension with green roof
Flowering green roof extension
A green roof is not just turf on a flat roof. The ventilation and the waterproofing under it are what stop it becoming a problem.
