Building Code Questions- Page 61 of 68
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Duct Insulation R Value in a Attic with a spray foam roof deck.
Definition of Conditioned Space - Spray foamed attic/roof deck I am consulting on a new construction house for efficiency. We are spray foaming the entire house including the bottom of…
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Meeting U-Factor with Locally Built Windows
Does anyone have any experience with demonstrating compliance with the IECC for locally (shop) built glass doors and windows? Climate zone 5A, so the U-Factor is 0.35. I hesitate to…
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Mass. glazing requirements for school buildings impede energy efficiency
It appears that Massachusetts now requires low solar heat gain (below 0.4) for windows in school buildings constructed with state aid: http://www.massschoolbuildings.org/sites/default/files/edit-contentfile/Guidelines_Forms/Guidelines_Policies/MA-CHPS_Green_School_Guidelines_2009.pdf The SGHC must be no higher than 0.4,…
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Is duct sealing considered part of infiltration measures in older homes?
The basic scenario is in a older home when you seal the ducts it causes infiltration numbers of the blower to drop significantly. By code would you count that to…
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Do you have to mechanically ventilate an attic space used for storage?
Do you have to mechanically ventilate an attic space used for storage when the whole attic is within the thermal envelope? The roof is 10 inch SIP panels (R-60) and…
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I live in Northern Virginia. I am trying to resolve a dispute between my insulation contractor and the city engineer.
I plan on having open cell spray foam installed in the rafters of the top level of my home. Dispute Details: - The city engineer stated that I need to…
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Are 3x Studs Req’d. @ Panel Edges of 24″ O.C. Exterior Sheathed walls?
Hello, The structural engineer I use just gave me a call. He was reading the NDS (National Design Standards) and found that 3x studs are required at 24" O.C. framing…
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shallow uninsulated foundation coastal Vancouver Island
Does this foundation need to modified into a frost protected shallow foundation with perimeter drainage and damp proofing or is it durable as is? My inlaws have a home near…
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How to properly insulate an unvented cathedral ceiling
In your recent "Musings of..." you refer to an unvented roof assembly as follows: "The 2009 IRC (Section R806.4) allows unvented roof assemblies insulated with a combination of rigid foam…
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Fighting the inspector- double stud wall NOT “ci”!
This is how great building officials can be. I am working on getting my project qualified with the HERs raters and Energy Star programs to qualify for new construction rebates…