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Certainteed Cedar Impressions 5" sawmill shingles

2 years ago

Has anyone else who has used these polymer shingles on their homes had subsequent problems with the shingles bowing, warping and distorting? My contractor installed this product to replace 1960s aluminum siding on my 101 year old house in Massachusetts in February and March 2021. Once the weather warmed up in April dimensional changes began to occur. Initially individual shingles were affected but by the end of May entire rows of shingles were bowing out. The contractor is saying the problem is the product, while Certainteed initially said the problem was the installation. A field representative from Certainteed has removed some of the offending shingles for testing to determine if the batch is defective. I'm still waiting for Certainteed's verdict.

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