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SDP Polycarbonate*
Overall Thickness
16 mm +- 1 mm (0.63" + 0.04")
Skin Thickness (approx.)1.3 mm (0.05")
Rib Thickness0.8 mm (0.03")
Area WeightApproximately 4 kg/m2 (.92 psf)
Heat Transfer Coefficient,1 USI (U)
-Summer conditions 3.2 W/m2/oC
-Winter conditions 3.2 W/m2/oC
Heat Transfer Coefficient
3.2 W/m2/oC(0.55BTU/hour sq. ft./oF)
3.3 W/m2/oC(0.58 BTU/hour sq. ft./oF)
Thermal resistance, RSI (R) value
-Summer conditions/oF/
-Winter conditions/oF/
Thermal resistance,
1.82/oF/BTU/hour sq. ft. (10.3R)
1.72/oF/BTU/hour sq. ft. (9.7R)
Maximum service temperature without load 116oF (50%oF)
Polycarbonate Colours

Clear
Light Bronze
Dark Bronze
Light transmittance

73%
50%
21%
Solar transmission

74%
56%
29%
Shading coefficient

0.91
0.78
0.54
Average sound reduction 24 dB

Fire Precaution: SDP double skinned sheets are produced from molding compounds which are combustible thermoplastics. Precautions used to protect combustibles from flames and high heat sources should also be observed with these materials. SDP sheets usually burn rapidly to completion if not extinguished. The products of combustion, if sufficient air is present, are carbon dioxide and water. However, in many fires, sufficient air will not be available and toxic carbon monoxide will be formed, as it will form other common combustible material. We urge good judgment in the end use of these versatile materials and recommend that building codes be followed carefully to assure they have been used properly. Access panels may be required for evacuation and venting of rooms glazed with SDP sheets. SDP sheets burn more rapidly than their solid counterparts. Noncombustible end caps must be used to prevent flame from contacting the open ends of SDP sheets.

Important Notice: The information and statements herein are believed to be reliable but are not to be construed as a warranty or representation for which we assume legal responsibility. Users should undertake sufficient verification and testing to determine the suitability for their own particular purpose of any information or products referred to herein. NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS MADE. Nothing herein is to be taken as permission, inducement or recommendation to practice any patented invention without a license.
*Technical data provided by Chemacryl Plastics Limited. 1ASHRAE handbook of fundamentals.



Air Infiltration (through installed door)*
Test Pressure

0.027kPA (0.56 psf)
0.075 kPA (0.075 psf)
0.192 kPA (4.00 psf)
Equivalent Velocity

24 km/h (15 mph)
40 km/h (25 mph)
64 km/h (40 mph)
Overall Air Infiltration

19
69
145
Unit Air Infiltration
per 0.093 m2 (sq. ft.)
of door area
2per lineal 305 mm (foot) of 2
perimeter crack length
0.011 m3/min. (0.396 cfm)
0.040 m3/min. ( 1.44 cfm)
0.084 m3/min. ( 3.02 cfm)
0.019 m3/min. (0.679 cfm)
0.069 m3/min. ( 2.46 cfm)
0.145 m3/min. ( 5.18 cfm)
*Tests conducted by Warnock Hersey Professional Services, Mississauga, Ontario. Copies of test reports available upon request.

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