Building Code Questions- Page 34 of 68
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Roof/Ceiling R-Value Requirement
I'm trying to understand what level of insulation is required in my roof/ceiling based on the 2012 energy code for Zone 5. Based on the tables I've looked at, R-49…
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Is Rmax Thermasheath-XP an acceptable alternative to Dow Thermax?
I intended on using Dow Thermax for an exposed basement application in a residential setting. I thought there were no alternatives without using an ignition barrier (drywall) but recently came…
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Replacing traditional masonry chimney with metal chimney pipe
Hi all, I live in 1950s ranch in Chicago. We've invested a lot into improving the efficiency of the home: 95% eff radiant heat, indirect DHW, minisplit for AC, lots…
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Attaching Porch Ledger to House
I'm currently in the design phase of a modern cabin. I will have a porch roof that extends about 12 feet out and covers a deck. The problem is I…
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Indoor air intake into high-efficiency tankless water heater
I have the option to let our new tankless water heater intake indoor air (it will be installed in a semi-finished basement), or intake it from the outside. The manufacturer…
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Can the granular fill used for soil gas mitigation be compacted or is it self-compacting?
In order to maintain a complete thermal break I want to place 1 1/2" of xps under my slab. The 5" slab acts as footings for interior bearing walls (…
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Can you spray closed-cell insulation over mineral wool insulation?
New house design with 2x4 outer wall with mineral wool then 1 inch gap then 2x3 inner wall. gap and 1 inch of inner wall sprayed with closed cell
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If UL-approved aluminum tape is applied to the return side (bottom) of air handler to filter base, is mastic still required?
A co worker and i disagree on this mastic is required where condensation will allow tape to peel. But condensation does not occur between the filter base and air handler…
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Cold climate basement insulation and code questions
I live in SE Wisconsin (Climate Zone 6) in a 1930s house that has a currently unfinished cinder block basement with a concrete slab floor. The basement is unconditioned but…