CertainTeed Learning Center: Trim

Helpful Resources

Does Restoration Millwork expand and contract?

Yes, all cellular PVC products do, allow 1/8” per 18 feet and use scarf joints and glue on long runs to keep the expansion out at the ends of the run. Consult our Installation Manual for additional information.

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CertainTeed has earned a reputation as a premier building materials manufacturer for more than 100 years. For every part of the building, CertainTeed offers a quality line of roofing, vinyl and fiber cement siding, pvc trim, sheathing, fence, railing, decking, foundation, windows, insulation, drywall and performance wallboards, ceilings, and pipe products for both residential and commercial building applications.