Performance Data for TwinSeal Vinyl Window & Door Products

Selection

Service

and Value

Selection, Service, and Value

Performance Data

Technical Data (Rough opening, net clear, etc.)

Size Guide

Technical
Information
for ALL Products

PERFORMANCE DATA
TwinSeal^® Series (Vinyl)

All units tested in accordance with ASTM standards; rated in accordance with International Residential Code; and witnessed by an independent AAMA accredited lab. Units were tested without dividers.

Single Hung Performance					Double Hung Performance
	U Value	R Value	SHGC	VLT		U Value	R Value	SHGC	VLT
3/4" Clear	.49	2.04	.62	.64	3/4" Clear	.49	2.04	.61	.63
3/4" Low-E	.36	2.78	.36	.55	3/4" Low-E	.36	2.77	.36	.54
3/4" Low-E/Argon	.32	3.13	.36	.55	3/4" Low-E/Argon	.34	2.94	.36	.54

Sliding Window Performance					Sliding Patio Door Performance
	U Value	R Value	SHGC	VLT		U Value	R Value	SHGC	VLT
3/4" Clear	.50	2.00	.64	.66	3/4" Clear	.47	2.12	.62	.65
3/4" Low-E	.36	2.77	.37	.56	3/4" Low-E	.34	2.94	.37	.54
3/4" Low-E/Argon	.32	3.13	.37	.56	3/4" Low-E/Argon	.30	3.33	.37	.54

Note:
U Value=	Ultraviolet transferrance
R Value=	Restrictive ambient air flow
SHGC=	Solar Heat Gain Coefficient
VLT=	Visible Light Transmission

ENERGY STAR^® Qualification Criteria WINDOWS AND DOORS
Zone	U-factor	SHGC
Northern	0.35	Any
North/Central	0.40	0.55
South/Central	0.40	0.40
Southern	0.65	0.40
TwinSeal^® Series window & sliding patio door products can be ordered to meet or exceed the requirements for the Energy Star program in all four climate zones.

Last Modified: Wednesday, February 13, 2008 4:24:20 PM