The first Wienerberger e4 brick house was recently launched at BRE’s Innovation Park.
The e4 brick house concept:
Knauf Insulation supplied various products for the project to help turn the Wienerberger e4 house concept into a reality.
Knauf supplied its Earthwool DriTherm 32 cavity wall insulation and its Earthwool Loft Roll 44 insulation to satisfy the energy principle criteria.
The external wall cavity has been insulated to achieve a U-value of 0.18W/m2K, achieved by completely filling the cavity with 150mm of Earthwool DriTherm Cavity Slab 32 Ultimate, which has a thermal conductivity of 0.032 W/mK.
The water resistant, semi-rigid slabs are designed to suit standard vertical wall tie spacings, and the mineral wool allows the slabs to knit together to provide continuous insulation.
The roof has been insulated at ceiling level to give a U-value of 0.12W/m2K by installing 350mm of Earthwool Loft Roll 44, with 100mm installed between the ceiling joists and 250mm added above.
Earthwool Loft Roll 44 is manufactured in a range of thicknesses and has combi-cut perforations to give the flexibility to be used between 400mm or 600mm ceiling joists.
It was important that the design and build be as environmentally conscious as possible. Knauf Insulation’s Earthwool glass mineral wool products contain up to 80% recycled glass, manufactured with a bio-based binder technology that uses rapidly renewable materials and contains no added formaldehyde or dyes.
Phil Rigby, Product Manager Glass Mineral Wool Refurbishment – Northern Europe at Knauf Insulation comments:
Wienerberger’s e4 concept is all about providing value in the form of economy, energy, environment and emotion, and we’re very pleased to have collaborated on and provided some key insulation solutions to help realise this vision.
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