Insulated sheathing fights thermal bridging in the building envelope
As building codes incorporate continuous insulation, homebuilders are looking for techniques that won't add labor costs.
For example, depending on the climate zone, the 2012 International Energy Conservation Code calls for R-values in wood-framed walls to be 20 or 13 inside the walls and 5 for continuous insulation. In northern climate zones the exterior continuous insulation values can be R-10.
At the 2015 Greenbuild Expo, Tracy Collins, marketing manager with Huber Engineered Woods, reviewed the advantages of the
Zip System R-Sheathing for builders who want a cost-effective continuous insulation solution.
The Zip System R-Sheathing incorporates the benefits of the Zip System, including a continuous air and water barrier, along with insulation.
Collins said the R-Sheathing adds layer of polyisocyanurate foam insulation, which, depending on thickness, can add R-3 or R-6 to the insulative value of the wall assembly. The continuous foam insulation provides higher R-value and increases thermal performance while eliminating thermal bridging, Collins noted.
The insulated version of the Zip System installs just as easily as the standard version, and can help cut construction time compared to housewraps and other solutions, Collins noted.
Read more about the thermal envelope.
Companies: Huber Engineered Woods
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