Nami Certification

Product Certification:

Manufacturer:	Window Tech Systems, Inc.
Certification:	WTS-M-20
Product series name:	WTS-M-20 7000 Double Hung
Operator type:	VSDH
Issue date:	06/18/2026
Expiration:	12/08/2030
Report number:	32361.01-111-24
Product simulated by:	Molimo
Air leakage report no:	31998.02-111-18
Sales material product type:	Aluminum w/Thermal Improvements, Aluminum w/Thermal Improvements
Type of certification:	NFRC

Associated Documents

WTS-M-20 CA 06-18-26

WTS-M-20 CAR 06-18-26

NRFC Certificates

WTS-M-20

Product Number	Manufacturer Product Code	Emissivity (Surface #)	U-factor	SHGC	VT	Air Leakage Average	Condensation Resistance
WTS-M-20-00001-00001	3 mm ClimaGuard? 70/ARG/3 mm Clear Float Glass	0.025(2)	0.43	0.28	0.52	0.3	38
WTS-M-20-00002-00001	3 mm ClimaGuard? 70/KRY/3 mm Clear Float Glass	0.025(2)	0.42	0.28	0.52	0.3	38
WTS-M-20-00003-00001	3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard IS-20	0.025(2) 0.198(4)	0.40	0.28	0.50	0.3	37
WTS-M-20-00004-00001	3 mm ClimaGuard? 70/KRY/3 mm ClimaGuard IS-20	0.025(2) 0.198(4)	0.39	0.28	0.50	0.3	37
WTS-M-20-00005-00001	3 mm ClimaGuard? 70/ARG/3 mm Energy Advantage?	0.025(2) 0.164(4)	0.39	0.28	0.49	0.3	37
WTS-M-20-00006-00001	3 mm ClimaGuard 55/27 LE/ARG/3 mm Clear Float Glass	0.031(2)	0.43	0.23	0.42	0.3	38
WTS-M-20-00007-00001	3 mm ClimaGuard 55/27 LE/ARG/3 mm ClimaGuard IS-20	0.031(2) 0.198(4)	0.40	0.23	0.41	0.3	37
WTS-M-20-00008-00001	3 mm ClimaGuard 55/27 LE/ARG/5 mm Clear Float Glass	0.031(2)	0.43	0.23	0.42	0.3	38
WTS-M-20-00009-00001	5 mm ClimaGuard? 70/ARG/3 mm ClimaGuard IS-20	0.025(2) 0.198(4)	0.40	0.28	0.50	0.3	37
WTS-M-20-00010-00001	3 mm ClimaGuard? 70/ARG/Clear laminate (3mm+.030""PVB+3mm)	0.025(2)	0.43	0.28	0.51	0.3	38
WTS-M-20-00011-00001	3 mm ClimaGuard? 70/ARG/3mm clear+ .030""PVB+3mm IS20	0.025(2) 0.198(4)	0.39	0.27	0.41	0.3	37
WTS-M-20-00012-00001	5 mm ClimaGuard? 70/ARG/Clear laminate (3mm+.030""PVB+3mm)	0.025(2)	0.43	0.28	0.51	0.3	37
WTS-M-20-00013-00001	3 mm LoE 180/ARG/3 mm i89	0.068(2) 0.149(4)	0.40	0.49	0.58	0.3	37
WTS-M-20-00014-00001	3 mm LoE? 270/ARG/3 mm Clear Float Glass	0.035(2)	0.44	0.30	0.53	0.3	38
WTS-M-20-00015-00001	3 mm LoE? 270/ARG/3 mm i89	0.035(2) 0.149(4)	0.40	0.29	0.52	0.3	37
WTS-M-20-00016-00001	3 mm LoE? 270/ARG/Clear laminate (3mm+.030""PVB+3mm)	0.035(2)	0.43	0.30	0.52	0.3	38
WTS-M-20-00017-00001	3 mm LoE? 270/ARG/3mm clear+ .030""PVB+3mm i89	0.035(2) 0.149(4)	0.39	0.28	0.42	0.3	37
WTS-M-20-00018-00001	3 mm LoE? 340/ARG/3 mm i89	0.028(2) 0.149(4)	0.39	0.15	0.29	0.3	37
WTS-M-20-00019-00001	3 mm LoE? 366/ARG/3 mm i89	0.02(2) 0.149(4)	0.39	0.22	0.48	0.3	37
WTS-M-20-00020-00001	3 mm LoE? 366/ARG/Clear laminate (3mm+.030""PVB+3mm)	0.02(2)	0.43	0.23	0.48	0.3	38
WTS-M-20-00021-00001	3 mm LoE? 366/ARG/3mm clear+ .030""PVB+3mm i89	0.02(2) 0.149(4)	0.39	0.21	0.39	0.3	37
WTS-M-20-00022-00001	3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard IS-20	0.025(2) 0.025(4) 0.198(6)	0.37	0.22	0.39	0.3	37
WTS-M-20-00023-00001	3 mm ClimaGuard? 70/ARG/3 mm Clear Float Glass/ARG/3 mm ClimaGuard IS-20	0.025(2) 0.198(6)	0.40	0.26	0.46	0.3	37
WTS-M-20-00024-00001	3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard IS-20	0.025(2) 0.025(4) 0.198(6)	0.37	0.22	0.39	0.3	37
WTS-M-20-00025-00001	3 mm ClimaGuard? 70/KRY/3 mm ClimaGuard? 70/KRY/3 mm ClimaGuard IS-20	0.025(2) 0.025(4) 0.198(6)	0.33	0.22	0.39	0.3	38
WTS-M-20-00026-00001	3 mm ClimaGuard? 70/ARG/3 mm Clear Float Glass/ARG/3 mm Clear Float Glass	0.025(2)	0.43	0.27	0.48	0.3	38
WTS-M-20-00027-00001	3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard IS-20	0.025(2) 0.025(4) 0.198(6)	0.37	0.22	0.39	0.3	37
WTS-M-20-00028-00001	3 mm ClimaGuard? 70/ARG/3 mm Clear Float Glass/ARG/3 mm ClimaGuard? 70	0.025(2) 0.025(5)	0.39	0.24	0.40	0.3	38
WTS-M-20-00029-00001	3 mm ClimaGuard? 70/ARG/3 mm ClimaGuard? 70/ARG/2.7mm clear+ .030""PVB+2.7mm clear Guardian IS20	0.025(2) 0.025(4) 0.198(6)	0.37	0.21	0.32	0.3	37
WTS-M-20-00030-00001	3 mm LoE 180/ARG/3 mm LoE 180/ARG/3 mm i89	0.068(2) 0.068(4) 0.149(6)	0.38	0.42	0.52	0.3	37
WTS-M-20-00031-00001	3 mm LoE? 270/ARG/3 mm LoE 180/ARG/3 mm i89	0.035(2) 0.068(4) 0.149(6)	0.37	0.26	0.46	0.3	37
WTS-M-20-00032-00001	3 mm LoE? 270/ARG/3 mm LoE 180/ARG/3 mm i89	0.035(2) 0.068(4) 0.149(6)	0.37	0.26	0.46	0.3	37
WTS-M-20-00033-00001	3 mm LoE? 340/ARG/3 mm LoE 180/ARG/3 mm i89	0.028(2) 0.068(4) 0.149(6)	0.37	0.14	0.25	0.3	37
WTS-M-20-00034-00001	3 mm LoE? 366/ARG/3 mm LoE 180/ARG/3 mm i89	0.02(2) 0.068(4) 0.149(6)	0.37	0.20	0.42	0.3	37
WTS-M-20-00035-00001	3 mm LoE? 366/ARG/3 mm LoE 180/ARG/3 mm i89	0.02(2) 0.068(4) 0.149(6)	0.37	0.20	0.42	0.3	37
WTS-M-20-00036-00001	3 mm LoE? 366/ARG/3 mm LoE 180/ARG/2.7mm clear+ .030""PVB+2.7mm I89	0.02(2) 0.068(4) 0.149(6)	0.37	0.20	0.35	0.3	37
WTS-M-20-00037-00001	4 mm LoE? 366/VIG/4 mm Clear Float Glass/ARG/3 mm Clear Float Glass	0.02(2)	0.31	0.20	0.44	0.3	39
WTS-M-20-00038-00001	4 mm LoE? 366/VIG/4 mm Clear Float Glass/ARG/3 mm i89	0.02(2) 0.149(6)	0.30	0.20	0.43	0.3	38
WTS-M-20-00039-00001	4 mm LoE? 366/VIG/4 mm Clear Float Glass/ARG/5 mm Clear Float Glass	0.02(2)	0.31	0.20	0.44	0.3	39
WTS-M-20-00040-00001	4 mm LoE? 366/VIG/4 mm Clear Float Glass/ARG/5 mm i89	0.02(2) 0.149(6)	0.30	0.20	0.43	0.3	38
WTS-M-20-00041-00001	3 mm LoE? 366/ARG/3 mm Clear Float Glass	0.02(2)	0.43	0.23	0.49	0.3	38
WTS-M-20-00042-00001	4 mm LoE? 366/VIG/4 mm Clear Float Glass	0.02(2)	0.31	0.21	0.49	0.3	19

Product Certification:

Programs

Quick links

WTS-M-20 7000 Double Hung

Product Certification:

Associated Documents

NRFC Certificates

WTS-M-20