The panels can be installed horizontally or vertically. The report specifies the panels must be installed on wood-framed walls of minimum 2x nominal framing with studs spaced no more than 24 in. It’s also an option to meet various continuous insulation requirements. ![]() Just like the standard versions of Zip sheathing, R-sheathing qualifies as a water-resistive barrier (WRB) and as a suitable air-barrier material to meet air-sealing requirements of the International Residential Code (IRC) so long as the panel seams are taped according to the manufacturer’s instructions. The report on the product, ESR-3373, includes a slew of details to help builders, engineers, and architects incorporate and use it correctly. Like many products not specifically mentioned in the code, Zip R-sheathing has gone through technical evaluation by the International Code Council’s Evaluation Service to be certified for code compliance. It just isn’t common enough yet.īecause R-sheathing panels have insulation on the inside, in contact with the studs, windows and doors can be installed in plane with the sheathing with no need for the fussy flashing details associated with exterior continuous insulation. But he’s wary of builders’ ability to get the details right when installing exterior rigid foam outside of the sheathing. With continuous insulation typically installed outboard of the sheathing, Paul recognizes that the latter are better options from a durability perspective. In Austin, code-minimum insulation is R-19 in the wall cavities or a combination of R-15 in the cavities and R-2 continuous insulation or R-13 plus R-3 continuous insulation. When the budget allows, Paul tries to do a little better by using mineral-wool cavity insulation, a ventilated rainscreen behind the siding, and Huber Engineered Wood’s Zip System R-sheathing, which includes a layer of insulation to provide a thermal break and boost his assemblies’ R-values. ![]() Pa ul DeGroot is an architect in Austin, Texas, a market where the norm is to fill stud bays with fiberglass batts, sheathe the house with OSB, install a lumberyard-branded housewrap, and nail the siding directly to the wall. A sidebar explains how Zip R-sheathing can be used as a nail-base panel over existing roof sheathing. ![]() This article discusses the technical evaluations that certify R-sheathing for code compliance, and includes installation recommendations from builders who have worked with the materials. One of the most common criticisms of the product is that the insulation is on the inside, and not outside of the OSB, but having a nail base on the exterior solves issues when it comes to installing siding, trim, and windows. Synopsis: Zip System R-sheathing includes a layer of insulation to provide a thermal break and boost R-values, integrating structural sheathing, water-resistive barrier, and continuous insulation into one product.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |