The CertainTeed CedarBoards Insulated Double 4" Clapboard is part of the Siding ... Available in lengths longer than the typical 12 to 13-foot vinyl siding panel, so it will have less vertical ...

Resistance to color changes after accelerated weathering tests using UV light and heat to mimic exposure siding would encounter on an actual home. The CertainTeed Monogram Double 4" Clapboard is ...