Residential Design & Build Product Guide

Backer-Pro Underlayment for Alcoa Siding

Pactiv introduces GreenGuard Backer-Pro fanfold underlayment for Aloca Home Exteriors Grand Sierra and Mastic Premium Quest Series vinyl siding. This new underlayment, uniquely contoured to fill the hollow spaces between vinyl siding and the exterior wall, increases siding's impact resistance and the walls thermal effeciency.