WDR Roofing Company Austin - Roof Repair & Replacement
Austin, TX, USA
Your plan to use 2-inch-thick EPS as your ventilation baffle will operate. The EPS is fairly vapor-permeable, so it will permit a little bit of outward drying. (In almost any case, should you Construct a fairly airtight ceiling, there will not be any humidity in this assembly that really should escape.)
I much like the depth furnished but I wouldn't call that a cathedral ceiling problem since it features ceiling joists spanning at The underside with the roof rafters. I'd call this an insulated attic.
It truly is safe to say that an existing house doesn't have superior roof ventilation if there are no soffit vents or ridge vents. It's also Risk-free to say that, even though you'll find soffit vents and ridge vents, the roof is not ventilated if it involves valleys, hips, dormers, or skylights.
By Martin Holladay
You will be describing a cathedral ceiling that incorporates all possible errors. There was no notice to air sealing. The worst achievable insulation was made use of (fiberglass). As well as roof assembly is unvented. So it can be no shock that you are looking at condensation.
It appears if 1 ended up to utilize dense pack cellulose within a vented cathedral ceiling the vent channel materials needs to be rigid sufficient to withstand the stress.
If you'd like to produce a conditioned attic, this article informs you what you need to know. To learn more on The subject, see Creating a Conditioned Attic.
Therefore the query is: seal the stucco vents and incorporate the spray foam roof and Don't be concerned about condensation? There is incredibly little minimal-hanging fruit in our sort of construction, In particular on existing properties, Which is the reason men and women are getting sucked into the spray foam roof fraud.
Sure the instance shown is for your minimal pitch (not flat) roof. But modify it into a pitched roof fewer than 6-twelve and the main points are still a fantastic process (I feel).
Don't forget, an insulated sloped ceiling isn’t often a good idea. Often a good previous-fashioned unconditioned attic is the best way to cap your home.
Any home remaining created better than absolutely the minimums should really within the quite least not use OSB visit this site right here for roof sheathing. Imo
Almost nothing my blog is more irritating than discovering that a supposed Specialist did not do his or her task correctly or that a fabric you selected has long gone negative much too quickly. If my blog you have been the 1 who compensated for your defective roof to start with, you could be able to acquire it redone at no or little cost as quite a few roofers give you a warranty for their function. Having said that, if the preceding homeowner had The work finished, you're probable gonna have to take care of the issue on your own. In such a case you should consult with an experienced contractor to make sure that the roof is finished with high criteria. As generally, you wish to ensure you're obtaining a true roof fix Experienced with the correct licenses, insurance and expertise, and that's wherever we are available.
You say "You do not need an interior vapor barrier," but You furthermore may say that "You'll need a superior air barrier on each side of the fiberglass batts." The latter would turn out to be an interior vapor barrier not so?
Q. "I are actually using rigid breadboard model expanded polystyrene from the rim joists and imagined the exact same can be place underneath the sheathing in between the rafter bays."