I have been making use of rigid breadboard model expanded polystyrene while in the rim joists and believed the same may very well be put under the sheathing involving the rafter bays, and with any gaps sealed having a urethane spray foam for example Fill and Seal. Is there a high quality which makes spray foam suitable and rigid foam unacceptable?
I'm undecided what to do about the electrical for the present lover, and for the not-still-set up but much wanted keep track of lights. From the previous roof, the lover's electrical source ran along with the T&G ceiling, and was covered by what appeared like electrical tape, then by a 1/two" layer of audio insulation board, and then because of the felt and shingles.
Obviously, at times you have to plan ahead to make sure that your rafters are sized adequately to allow for insulation and venting. To learn more on suitable ways to insulate lower-slope roofs, see this information: Insulating Reduced-Slope Residential Roofs.
Q. "If I set up a polyethlene sheet among The underside in the batting along with the sheetrock [It will be hooked up into the purlins], would not this be an inside vapor barrier?"
I see the advice is the fact that when starting off with board sheathing, 1 need to position a watertight membrane above the sheathing ahead of installing the lowest layer of froth. Nonetheless, in my scenario the roofer has currently completed putting new felt in excess of the T&G board ceiling/roof deck. Can that felt substitute for that prescribed watertight membrane, below in San Jose/Weather Zone 3?
I have insulated the perimeters with R-19 fiberglass and now I am asking yourself: was that a miscalculation? It's got craft paper and I had been planning over a plastic sheet at the same time, should I skip that?
You're not the only real individual with this problem. For individuals who (such as you) are worried about the issue, there are two possibilities:
Beneath the 2x8 pine T&G, There's nine" of find out this here beam exposed, but we have only four†or at the really greatest five†to Perform with, since at the top in the stairs which ascend the facet of your home, the ceiling is scarcely previously mentioned a tall human being’s head as it really is. Additionally, we want to keep up an exposed beam profile for your aesthetics. I hope the attached photographs illustrate the problem. I believe an unvented roof assembly is the only chance here, as the very best level in the cathedral ceiling is not the ridge of your roof.
When the air inside my household was humid unconditioned air, I can be Similarly anxious. But is not going to the inside air be rather dry due to on-going air con? Should really I be troubled out condensation forming on my AC ducts if I cathedralize my ceiling?
an air barrier. If you intend to set up EnGard insulation batts in an unvented cathedral ceiling, You will need to get a big layer of rigid foam insulation above the roof sheathing.
We really Really don't know if these roofs have right vent channels, or which kind of vent baffles (if any) have been employed to keep up the air flow hole in between the top with the fiberglass insulation and the underside from the roof sheathing.
I am with Martin on this a single, your element is labor intense for small if any get for my part. The vent channels we describe can be done once the roof is on within the underside (dry aspect). For anyone of us creating in a cold weather it is a large benefit, we devote as very little time as is website here needed on the roof.
three. Employing ongoing Ice & Drinking water Protect is typically risky, nonetheless it's OK if you are adhering to the PERSIST solution and putting all of your insulation on the surface from the peel-and-adhere. The strategy can function, but you need a great deal more foam on the exterior of your respective roof.
When they were venting the dryer within (code violation?) and possess an connected greenhouse I guess the walls are moldy also. Begin from the laundry place with its excellent humidity stage source "dryer".