A new iteration of Huber's popular ZIP System R-sheathing will help builders meet stricter energy code requirements.
Since 2006, the engineered wood product has been available with a variety of insulation thicknesses to meet different levels of desired R-value. A new R-9 rated ZIP System R-sheathing option was introduced this summer to help builders meet prescriptive continuous foam insulation R-value requirements outlined in the 2015 International Energy Conservation Code requirements. (Click here for a complete rundown of what the 2015 code requirements mean for builders.)
“Some areas of the country, such as New York state and Dallas, Texas, will soon adopt the 2015 IECC codes, which include requirements for continuous exterior insulation. With the introduction of the new R-9 rated ZIP System R-sheathing panel, we will have an insulation solution for all climate zones,” says Allen Sealock, product director for ZIP System products.
In addition to the new insulation requirements in the 2015 IECC, there are also more stringent air tightness requirements. ZIP System R-sheathing has an integrated water-resistive barrier that combined with taped panel seams offer a streamlined approach to helping achieve the reduced air infiltration requirements. Originally introduced in R-3, R-6 and R-12 rated insulation thicknesses, ZIP System R-sheathing was quickly adopted by progressive, energy-efficient builders across the country who have been able to prove the significant contributions ZIP System R-sheathing and tape has made to help provide higher R-value and reduce air leakage. Massachusetts Passive House architect Steve Baczek has used ZIP System R-sheathing in multiple high-performance, net-zero homes.
“I have been performing blower door tests using ZIP System R-sheathing for 5 years.” Baczek says. “I have seen scores as low as .16 ACH 50 Pa, which I attribute to how this sheathing panel has been designed with multiple control layers built into one system. It reduces steps and material costs and ultimately room for error.”
In addition to providing built-in provisions for insulation, water-resistance and protection against air leakage, all ZIP System R-sheathing thicknesses are approved for prescriptive wall bracing and engineered shear walls.
“ZIP System R-sheathing and tape eliminates the need for multiple, independently installed products like housewrap, foam sheathing, and metal bracing,” says Sealock. “As building codes continue to change, we hope that builders will look to the expanded line of R-sheathing products as a hassle-free, all in one solution that saves time on the job."