VINYL SIDING 

Certainteed is our preferred materials provider. Today, CertainTeed is North America's leading brand of exterior and interior building products. CertainTeed products are consistently rated at the top for quality and performance by consumer and trade publications. Theres more than what meets the eyes when it comes to picking siding. Unsuspecting customers will often opt for low cost materials not knowing that their manufacturers use less of the crucial ingredients that make quality siding last. 
Titanium dioxide is a critical additive in vinyl siding because it protects PVC from potentially harmful UV rays. It makes siding and vinyl accessories opaque and acts to prevent the sun from degrading the resin, which could become cracked and brittle. Typically, manufacturers of low cost vinyl siding use less TiO2, because this additive is expensive and unsuspecting consumers will not notice the weathering for a few years. Stabilizers are used to protect the PVC compound from degrading as it is heated and subjected to pressure. This keeps the plastic ductile. Impact modifiers are applied to make the vinyl more resistant to the dings and dents that routinely occur on the wall and during and after installation. Carefully selected and blended impact modifiers help CertainTeed vinyl siding withstand most hail storms as well as normal installation and use.