The CertainTeed
CedarBoards Insulated Double 4" Clapboard is part of the
Siding test program at
Consumer Reports. In our lab tests, Siding
models like the CedarBoards Insulated Double 4" Clapboard are rated on multiple criteria, such as those
listed below.
Thick:
Thickness as stated by manufacturer.
Warm impacts:
Warm impacts is resistance to damage at roughly 70 degree Fahrenheit. Impacts mimic blows from fallen objects and other mishaps.
Wind:
Wind is siding's ability to stay attached in lab tests simulating high winds; the best withstood forces equivalent to more than 150 mph.
