ᐅ No insulation between the gable wall plate and the roof overhang
Created on: 11 Jul 2023 21:34
H
haus55EE2022H
haus55EE202211 Jul 2023 21:34While painting the roof overhang (three-ply boards), I noticed quite a bit of warm air escaping near the ridge during the screed heating phase.
I also saw that the roof overhang only rests on the wall plate, partly with small gaps. There is no insulation, although I had expected some.
The roof is insulated from the outside with continuous insulation above the rafters and from the inside between the rafters with fiberglass wool, as the rooms extend up to the roof.
Now, considering that there is no insulation between the roof overhang and the wall plate, I don’t really understand this. We are building a KFW 55 EE house with 36.5 cm (14 inches) insulating bricks.
Could you please advise if this all sounds correct? Maybe it’s sufficient not to add any more insulation there and just apply the exterior plaster?
If this is not professionally correct, who might be responsible for the mistake – the bricklayer who didn’t apply a damp-proof membrane on the wall plate, or the carpenter who didn’t plan any insulation?
How could this be fixed? There is not much space between the wall plate and the roof overhang; maybe it would be possible to add some PU foam insulation in isolated spots?
Thank you very much for your advice.
I also saw that the roof overhang only rests on the wall plate, partly with small gaps. There is no insulation, although I had expected some.
The roof is insulated from the outside with continuous insulation above the rafters and from the inside between the rafters with fiberglass wool, as the rooms extend up to the roof.
Now, considering that there is no insulation between the roof overhang and the wall plate, I don’t really understand this. We are building a KFW 55 EE house with 36.5 cm (14 inches) insulating bricks.
Could you please advise if this all sounds correct? Maybe it’s sufficient not to add any more insulation there and just apply the exterior plaster?
If this is not professionally correct, who might be responsible for the mistake – the bricklayer who didn’t apply a damp-proof membrane on the wall plate, or the carpenter who didn’t plan any insulation?
How could this be fixed? There is not much space between the wall plate and the roof overhang; maybe it would be possible to add some PU foam insulation in isolated spots?
Thank you very much for your advice.
W
WilderSueden12 Jul 2023 08:49Maybe you can provide us with some more pictures?
I would ask the designer how this is intended. Then check if it has been implemented accordingly. In an inhabited attic, it should actually be airtight already with the interior plaster, and with the exterior plaster also from the outside.
I would ask the designer how this is intended. Then check if it has been implemented accordingly. In an inhabited attic, it should actually be airtight already with the interior plaster, and with the exterior plaster also from the outside.
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