CertainTeed Approved
certification
GenRank Score
8.1
A certification program for contractors, indicating adherence to installation standards for CertainTeed building materials.
Also Known As
CertainTeed Approved
1 question•1 category
Score History
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Average Rank
#7.0
Median
#7
Range
#7–#7
Rankings by Model
Grok 4.3 #7