California · BHGS official directory

Certified insulation products

The July 2026 Thermal Insulation Directory is grouped by manufacturer license, directory category and exact product ID. Configuration rows remain separate; later certification or decertification is not inferred.

Edition-scoped product groups

1,673 product groups

4,313 configuration rows · Checked Aug 31, 2026, 10:07 PM UTC

Product ID	Manufacturer / license	Category	Configurations	Open
SPIN-GLAS WH XG / RANGE-GLAS XG - 1.26 PCFBrand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	5	Open
SPIN-GLAS WH XG / RANGE-GLAS XG - 1.76 PCFBrand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	3	Open
SPIN-GLAS WH XG / RANGE-GLAS XG - 2.00 PCFBrand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	3	Open
SPIN-GLAS WH XG / RANGE-GLAS XG - 2.50 PCFBrand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
SPIRACOUSTIC PLUSBrand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	3	Open
SPIRAL SG 75Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
SPIRAL SG 85Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
SPIRAL SG 100Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
SPIRAL SG 125Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
SPIRAL SG 150Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
SUPERDUCT 475Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	1	Open
SUPERDUCT 800Brand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	2	Open
ZESTON HI-LO INSULATION INSERTSBrand code JM	Johns Manville T 1039	Water Heater, Duct, Pipe Wrap	1	Open
ALLEY-KBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	12	Open
ALLEY WRAP FCD .75 PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	4	Open
ALLEY WRAP FCD 1.0 PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	2	Open
ALLEY WRAP FCD 1.5 PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	2	Open
ALLEY WRAP PLN .75 PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	2	Open
ALLEY WRAP PLN 1.0 PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	2	Open
DTWP FCD .75PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	8	Open
DTWP FCD 1.0PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	4	Open
DTWP FCD 1.5PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	5	Open
DTWP PLN .75PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	7	Open
DTWP PLN 1.0PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	2	Open
DTWP VIN .75PCFBrand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	3	Open
PERFORMANCE+ EARTHWOOL 1000°Brand code KNF	Knauf Insulation T 1002	Water Heater, Duct, Pipe Wrap	12	Open
04929Brand code MD	M-D Building Products Inc T 1120	Water Heater, Duct, Pipe Wrap	1	Open
04937Brand code MD	M-D Building Products Inc T 1120	Water Heater, Duct, Pipe Wrap	1	Open
COMML WRAP T 75Brand code FG	Owens Corning Insulating Systems LLC T 1428	Water Heater, Duct, Pipe Wrap	3	Open
COMML WRAP T 100Brand code FG	Owens Corning Insulating Systems LLC T 1428	Water Heater, Duct, Pipe Wrap	2	Open

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