ᐅ Request for insulation design proposal for ventilated roof underlay system needed
Created on: 20 Jul 2017 15:13
K
kleinerschelm
Hello everyone,
I have the following problem:
I need to insulate my roof from the inside. The current layers from outside to inside are: roof tiles, battens, counter battens, vapor-tight bitumen roofing membrane, wooden sheathing, 2cm (1 inch) ventilation gap (ridge vent and eave vent are present), 160mm (6.3 inches) rolled insulation between rafters with 180mm (7.1 inches) rafters. Rafter spacing is approximately 56cm (22 inches).
Now my question:
Which materials and construction method would you recommend for insulating between the rafters? WARNING: full rafter insulation is not possible due to the vapor-tight underlay with the bitumen roofing membrane (Buzi AK)!
Thanks in advance for your help!
Best regards
I have the following problem:
I need to insulate my roof from the inside. The current layers from outside to inside are: roof tiles, battens, counter battens, vapor-tight bitumen roofing membrane, wooden sheathing, 2cm (1 inch) ventilation gap (ridge vent and eave vent are present), 160mm (6.3 inches) rolled insulation between rafters with 180mm (7.1 inches) rafters. Rafter spacing is approximately 56cm (22 inches).
Now my question:
Which materials and construction method would you recommend for insulating between the rafters? WARNING: full rafter insulation is not possible due to the vapor-tight underlay with the bitumen roofing membrane (Buzi AK)!
Thanks in advance for your help!
Best regards
K
kleinerschelm19 Oct 2017 16:25Since this topic is still relevant and unfortunately no solution has been found so far:
The roof needs to be newly insulated from the inside. The existing layers from outside to inside are: roof tiles, battens, counter battens, vapor-tight bitumen roofing membrane Buzi AK, wooden sheathing, 2cm (1 inch) ventilation gap (ventilated ridge and ventilation at the eaves are present), 180mm (7 inches) rafters. Rafter spacing is about 56cm (22 inches).
What is the best way and material to insulate this roof between the rafters?
Thanks in advance for any helpful tips!
The roof needs to be newly insulated from the inside. The existing layers from outside to inside are: roof tiles, battens, counter battens, vapor-tight bitumen roofing membrane Buzi AK, wooden sheathing, 2cm (1 inch) ventilation gap (ventilated ridge and ventilation at the eaves are present), 180mm (7 inches) rafters. Rafter spacing is about 56cm (22 inches).
What is the best way and material to insulate this roof between the rafters?
Thanks in advance for any helpful tips!
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