Happy Design Day!
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It got up to 92F today, which is our 99th percentile temperature. Humidity was in the low 40’s, which is what we use in a Manual J as well. Cooling system ran almost all day!
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Every day is design day at work! Execept for those occasional and annoying "why haven't you paid me for the design yet" days...
We've had a bit of heat wave here too over the past weekend. Today is cooler, high 70s, but crazy humidity -- 87% according to my gauge! Very unconfortable out. I'm in the middle of a small project re-insulating and air sealing a smallish room in my house that has a T+G ceiling with no air barrier. Plenty of mold up there, so I have a little more mold remediation than I was expecting (I knew there'd be some). Some cleaner, then some mold killing primer, then new fiberglass batts (no access for loose fill, unfortunately, I have to work from underneath), then a layer of taped 1/2" polyiso on the interior for air barrier and a bit more R, then the T+G planks.
Rather than caulking the gaps, between board ends, I'm routering them with a bevel to match the T+G board edges. This way the caulk can't seperate over time, so the look is more consistent. This particular roof area was always "melty" when looking at wintertime frost patterns, so I expect some energy savings from my little project along with improved comfort in that corner that is usually a bit cold.
Bill