Cornerstone Building Brands announced that Mastic by Ply Gem Structure Home Insulation System Siding was named a winner in the Exterior Renovation category of Good Housekeeping’s 2026 Home Reno Awards.
Mastic by Ply Gem Structure Home Insulation System Siding features a combination of vinyl siding technologies and breathable foam that limits temperature transfer, keeping homes warmer in the winter and cooler in the summer. The system wraps the home in a continuous blanket of insulation up to 1 ¼-inch thick with an R-value of up to 3.0, slowing the release of cool or warm air from the home during power outages.
What company leadership says
“We are honored to receive this recognition from Good Housekeeping,” says Jeremy Harris, general manager – vinyl for the Siding and Accessories business unit of Cornerstone Building Brands. “The Mastic by Ply Gem Structure Home Insulation System Siding was designed with durability in mind — helping homeowners increase energy efficiency, protect their homes from extreme weather and reduce long-term maintenance. This award validates Cornerstone Building Brands’ commitment to sustainability, innovation and delivering home exterior solutions that maximize performance and underscores Mastic’s position as the leading brand in the vinyl siding category.”
