Double checking everything before i start cutting holes discovered the attic space is to short for the insulation shield. Is it safe to have the ais sticking above the roof line or should i just build the 2" spaced box in the attic. Its a selkirk ais with a collared top.
Attic insulation shield
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If it projects out of the roof, it must be trimmed flush before putting on the flashing. Vacuum out any debris in the ceiling support before the flashing too.
A solution can be to use a square cathedral ceiling support box and let it project out of the roof for fitting, mark the roof pitch, then trim.
A solution can be to use a square cathedral ceiling support box and let it project out of the roof for fitting, mark the roof pitch, then trim.
Thats clever. I'll cut my current shield. It has a 1" air gap between inner and outer and 10" inner. Any particular reason it shouldn't stick above roof line? I couldnt find anything in the instructions or nfpa codes
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