Thorsten Chlupp is within a Significantly more difficult local weather and he is apparently accomplishing great with easy free fill about the attic ground....not surprisingly He's making use of "sufficient" amounts (cellulose galore)and he has baffles close to the soffit.
I am a homeowner with cathedral ceilings that were extra throughout transforming and enlargement of my home within the late 90s. Only the ridge beam is uncovered. The rest of the ceiling is covered with drywall. In the several years There have been some condensation leak down the side with the ridge beam on some mornings in March/April.The house is about four miles from your coast in Southern Califonia, so zone 3b. There are four recessed lights within the ceiling over the aspect on the beam that will get the condensation, but Additionally, there are lights within the side that is always dry. There is absolutely no air conditioning in the house. Warmth is used in the evening only a couple of dozen evenings a year, not throughout the condensation. Typically the windows are open up. It appears the condensation shows up on mornings when there is no maritime layer (no clouds in the morning) as well as the temperature heats up relatively early following a really awesome night. The situation ceiling faces east/west as well as the condensation is around the east dealing with facet from the beam. The roof is black asphalt shingle. I realize that there is no caulk/sealant amongst the aspect from the beam as well as area where the drywall butts towards it, so You will find a modest air hole there.
Can we (does the code allow it)? Will it make practical perception? Are there pitfalls resulting from our climate? How could possibly Now we have to modify that to suit it to out circumstance?
The strategy is to put in it (from the inside of the home) in regards to the exact same time the drywall is set up. I'll instruct my crew to ensure there isn't any air pockets while in the go to website purlin cavities & no air movement into your latter.
Most creating codes require 1 square foot of Internet absolutely free ventilation area For each 300 sq. toes of attic floor area, assuming that fifty percent with the air flow openings are located while in the soffit, and 50 % alongside the ridge.
Your blogs on this matter are already extremely beneficial And that i recognize your suggestions. ( I do analyze just before I submit queries : )
Code doesn't seem to be to use since it's grandfathered in. It appears like I have to redo the hall ceiling.
This assembly was not long ago developed just south of Portland OR. discover this I posted it a couple of weeks in the past. Here it can be again (with the builders comments) I believe It is really a pretty simple Develop as you get previous the thought of adding company cavities in your Make.
I have already been working with rigid breadboard fashion expanded polystyrene within the rim joists and thought the same could possibly be put beneath the sheathing in between the rafter bays, and with any gaps sealed that has a urethane spray foam for example Fill and Seal. Is there a high quality which makes spray foam suitable and rigid foam unacceptable?
I have an urgent problem and would be pretty grateful for assistance on insulating our residence’s family room cathedral ceiling, built-in the 1970’s and at this time getting re-roofed. (The previous roof continues to be torn off, and they're going to start out installing the new shingles.) Your home is in San Jose, CA, local climate zone three. The contractor won't would like to set insulation over the sheathing, and that is 2x8 pine tongue and groove, which up til now served as the finish ceiling.
1. You do not need an inside vapor barrier. In the scorching humid local climate, the vapor travel is often from the exterior toward the interior (assuming your making is air conditioned). If your making is not ever going to be air conditioned, the vapor drive will even now be from the outside to the inside, but there will not be A lot vapor generate.
JB- I really must article sketches as Ken did. It could almost certainly avoid wasting issues. For me this was harking again on the compact roof string.
My sensation would be that the dew issue profile would end up in the XPS foam board, that's why a VB need to be put on 1st deck. To be able of assembly:
I question which the condensation is happening towards the chilly ridge beam. Instead, I do think it is probably going that condensation is going on over the underside of your respective ridge shingles or maybe the underside with the asphalt felt underlayment.