Comparative Analysis Data

ThermēShade Solar / Thermal / Optical Data

Various shade and tinting products were analyzed, measured, and compared for heat reflectivity, visible light transmission, and insulating properties. Most of the products evaluated reduced heat gain and improved insulation performance.

ThermēShade, however, transmitted the highest percentage of visible light.

Low-E Glass Pane / Woven Shade / ThermēShade
Added to Base Window

	U – factor	Percent Improvement in Insulation	SHGC	Percent Improvement in Solar Heat Rejection	Visual Transmission
Base Window	0.484		0.689		0.72
Base Window + ThermēShade (34%)	0.41	15.3%	0.383	44%	0.291
Base Window + Low-E	0.36	17.6%	0.693	-1%	0.733
Base Window + Mecho 5%	0.37	23.1%	0.414	40%	0.063

	Base Window	Type	Width inches	Height inches
ID 12	Std Size – Wood + ID 102 Double Glazing	Fixed (picture)	47.24	59.06

NFRC 100: Procedure for Determining fenestration Product U-factors
NFRC 200: Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence

Vistar Energy Consulting

Low-E Glass Pane / ThermēShade / Woven Shade
Added to Base Window

ThermeShade Lawrence Berkeley National Lab Complex Glazing System Comparative Analysis chart

Simulation using data provided by Windows and Envelope Materials Group WINDOW 7.5 ~ Vistar Energy

ThermeShade TS 700 Reflective Insulation for Windows Solar / Thermal / Optical Properties Performance Comparison of Sun Control Materials: E Screen 5% - Dual Reflective Window Tint - ThermēShade. The fabric performance tests were conducted in accordance with ASTM E891 & ASTM E903-96: Total Solar Transmittance (Ts), Total Solar Reflectance (Rs), Solar Reflectance in Infrared (Rs IR), Total Solar Absorptance (As), Visible Reflectance (Rv), and Visible Transmission (Tv). ~Courtesy Mermet USA Glass performance tests for Solar Heat Gain Coefficient (SHGC) were conducted using the Lawrence Berkeley National Laboratory Window 7.5 NFRC certified software. SHGC for residential applications is based on a default residential glass makeup of 3mm clear glass / 1/2" air / 3mm clear glass. Results for SHGC were obtained using the center of glass. ~ Vistar Energy ** DR OptiTune 15i - Dual Reflective Interior Film / * Mermet E Screen 5% KOOLBLACK

Performance Comparison of Sun Control Materials: Mermet E Screen 5% KOOLBLACK vs. ThermēShade. This chart provides thermal / solar and optical product properties and data for both window screen solutions. Data shows that the E Screen is slightly higher in reflecting solar heat in the IR range and best at reflecting solar heat with less solar heat transmittance. Data also shows that ThermēShade is best at reflecting solar energy back to window, reflecting light and reducing glare, and transmitting natural daylight, and absorbs less heat than E-Screen.

Performance Comparison of Sun Control Materials: * DR OptiTune 15i - Dual Reflective Interior Film vs. ThermēShade. This data chart compares the thermal/solar and optical properties of both window covering solutions. Data suggests that Window Tint Dual Reflective Interior is best at reflecting solar heat in the IR range and reflecting solar heat, is slightly better at reflecting light and reducing glare, and has less solar heat transmittance. Yet ThermēShade is best at reflecting solar energy back to window, absorbs less heat, and is best at transmitting natural daylight.

SHGC	Solar Heat Gain Coefficient (lower is better) Amount of solar radiation admitted through a window or skylight directly or absorbed, and subsequently released as heat inside a building. The lower the SHGC, the less solar heat transmittance and the greater its shading performance.
Rs	Total Solar Reflectance (Higher is better) The percentage of solar energy directly reflected by the fabric. Higher the number the more heat the fabric reflects back toward the window.
As	Total Solar Absorbance (Lower is better) The percentage of solar energy absorbed by the shade fabric. This number will always be the opposite of Rs, so if RS number is high, the As will be low.
Ts	Total Solar Transmittance (Lower is better) The percentage of solar energy directly transmitted through the fabric. The higher the number the more solar energy is being allowed through into the building. The percentages of Rs, As, and Ts should add up to 100.
Tv	Visible Light Transmission (Higher is better for visibility) The amount of visible light (in the range of 400–700 nm) directly transmitted through the fabric. This includes both direct and diffused light.
Rv	Reflectance in the Visible Spectrum (Higher is better) The percentage of visible light reflected by the fabric. Lighter colors will have a higher number, meaning they reflect more light and reduce glare.
Rs IR	Reflectance in the Infrared Spectrum (Higher is better) The percentage of solar energy in the infrared range reflected by the fabric. Because the IR spectrum generates heat, the higher the number the cooler the surface of the shade will be.
	Uv Transmittance (Lower is better) Measures the percentage of ultraviolet (UV) energy directly transmitted through the material.

Comparison chart of percent heat rejection improvement and visible light between ThermeShade and three national brands of woven shade fabric shows that Mecho shade 6220 has 2% openness, Alkenz 300 has 10% openness, Mermet-Natte White has 12% openness and ThermeShade has 34% openness. Glass performance tests for Solar Heat Gain Coefficient (SHGC) were conducted using the Lawrence Berkeley National Laboratory Window 7.4 NFRC certified software. SHGC for residential applications is based on a default residential glass makeup of 3mm clear glass / 1/2" air / 3mm clear glass. Results for SHGC were obtained using the center of glass. ~ Courtesy LBNL Windows and Envelope Materials Group.

AERC 1 / AERC 2 / AERC 1.3

Simulated File Name	CGDB ID	Openness	System Shading type	AERC Baseline Window	U-factor Btu/hr2/F	SHGC	VT	EPc
ThermēShade TS 700	18000	34%	Perforated Screen	BW-B	0.395	0.448	0.409	26
Mecho EuroTwill	15000	3%	Woven	BW-B	0.330	0.380	0.066	20
Mermet E-Screen	47054	10%	Woven	BW-B	0.456	0.348	0.137	30

Test Results:
Results with Shades Fully Closed for U–factor, SHGC, and VT, EP results are based on annual performance of shades fully closed and half-open for the cities of Minneapolis and Houston. See AERC 2 for more information about EP ratings — Peak Amplitude Consulting

Software Used:
Berkeley Lab WINDOW 7.8.28
THERM 7.8.16 AERCalc 1.3.9