ᐅ Attic Conversion / Insulation of a Bungalow with Timber Frame Construction
Created on: 29 Mar 2018 09:03
T
TobiHannHello dear forum members,
Our house was built in 2012 as a prefabricated timber frame (FTH) construction, with an increased roof pitch of 35° and the roof constructed using engineered trusses. Last year, we installed roof windows, and this year we plan to close the floor, add insulation between the rafters in the roof slopes, install a vapor barrier membrane, and connect it to the existing membrane (which extends into the attic from the lower ground floor envelope). The ceiling structure of the ground floor (first floor subfloor) consists of 12.5 mm (1/2 inch) gypsum plasterboard, battens, vapor barrier membrane, 22 cm (8.7 inches) high truss beams, with the spaces between the beams completely filled up to the top edge (22 cm (8.7 inches)) with glass wool insulation of thermal conductivity class 035.
Now my question is: should I use 22 mm (7/8 inch) OSB boards or rather the diffusion-open ESB boards? On top of that, dry screed panels with integrated underfloor heating will be installed.
Our house was built in 2012 as a prefabricated timber frame (FTH) construction, with an increased roof pitch of 35° and the roof constructed using engineered trusses. Last year, we installed roof windows, and this year we plan to close the floor, add insulation between the rafters in the roof slopes, install a vapor barrier membrane, and connect it to the existing membrane (which extends into the attic from the lower ground floor envelope). The ceiling structure of the ground floor (first floor subfloor) consists of 12.5 mm (1/2 inch) gypsum plasterboard, battens, vapor barrier membrane, 22 cm (8.7 inches) high truss beams, with the spaces between the beams completely filled up to the top edge (22 cm (8.7 inches)) with glass wool insulation of thermal conductivity class 035.
Now my question is: should I use 22 mm (7/8 inch) OSB boards or rather the diffusion-open ESB boards? On top of that, dry screed panels with integrated underfloor heating will be installed.