Building Code Questions- Page 52 of 68
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Dryer ducting — materials requirements
Hi all, I've been finding so much mixed information regarding this all over the net. Some places specify only rigid galvanized steel is approved for in wall and attic, other…
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Would Tyvek on top of rafters and under roof sheeeting meet R806.4 for non-vented attics?
Wish to have a non-vented attic but desire blown insulation. It appears R806.4 does not allow this. Would Tyvek remove requirement for spray insulation against roof sheeting?
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Zone 4B – 2012 IBC and SHGC
The new 2012 IBC adoption in my future building area will mandate that windows can only have a maximum of 0.40 SHGC, including the south facing windows. I am trying…
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Vapor retarders for double stud cellulose-filled wall assemblies
Following up on last month's blog about building codes, am I correct that the code allows interior vapor retarding with latex paint on sheet rock? Also, does the vapor permeability…
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Combustion air requirements
Without getting into the other air intake possibilities...code requires that the outside air intake ducts be covered with no less than a 1/4" screen. My concern is that there are…
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Can you run the gas line against the flue pipe on a heater?
I had a new central air installed, and the gas line is against the flue on the heater.
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In an unsinsulated service cavity (created by running horizontal 2x lumber) is fire blocking required? Or is it a good idea?
My proposed wall assembly from outside to inside: 1. Ribbed steel siding 2. 3/6" fanfold battens to create air space 3. 1/2" cdx 4. 2x8 stud cavity filled with wet…
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HVAC HRV sized correctly for my home?
A HVAC contractor installed a Venmar HEPA 3100 HRV in my new construction home. I was wondering if it is sized correctly for my house and meets the international building…
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Cedar poles for verandas
We live in New Zealand. We want to use our home-grown cedar poles for the veranda but cannot get council approval. We have some cedar whole tree poles. They include…
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Spray foam ignition barrier
When one applies spray foam on the rim joist of above an unfinished basement is an "ignition barrier required? Will a 3 1/2" bat of mineral wool meet the requirement?