Installation Instructions

ManualsBrandsAmeriLux ManualsBuilding materials12' Clear Polycarbonate U-Channel (6 mm)

SABIC Innovative Plastics 19

Temperature Increase Inside the Building

Sunlight entering the building heats the air both directly

and through absorption by the framework, furniture,

etc., and is released as infra-red energy. In combination

with the insulating properties of Lexan Thermoclear

sheet, this prevents heat escaping faster than it is

created causing a temperature increase – the so-called

’greenhouse effect’. The temperature can be controlled

by venting, often in combination with specially tinted

Lexan Thermoclear sheet, by Lexan Thermoclear

Venetian Grades and Lexan Thermoclear Solar Control

SC/IR.

Solar Control

Transparent grades of Lexan Thermoclear sheet have

excellent light transmission, between 38 and 83%

depending upon thickness. However, for buildings

in hot climates or with south facing aspects, Lexan

Thermoclear sheet is available in translucent grades

of bronze, grey, blue, green, opal white, Lexan

Thermoclear Solar Control sheet and Lexan Thermoclear

Venetian sheet with screen printed white stripes on

the non UV protected side. These grades signicantly

reduce solar heat build-up, helping to maintain

comfortable interior temperatures.

The specially tinted sheet, Lexan Thermoclear Venetian

sheet and Lexan Thermoclear Solar Control sheet cuts

down the brightness of sunlight to a pleasing level and

reduces air conditioning costs in the summer.

Lexan Thermoclear Solar Control IR (SCIR) sheet does

not signicantly, like most other solar control products,

block or reect sun light but absorbs that part of the

light spectrum which create solar transmission. Lexan

Thermoclear SC/IR is an excellent candidate for those

applications where there is a need for high light

transmission together with a low solar transmission.

Solar Heat Gain

The solar radiation reaching the sheet is reected, absorbed

and transmitted, as shown in g. 6. The greatest proportion

is transmitted and the total solar transmission (TST) is

the sum of the direct transmission (DT) and the inwardly

released part of the absorbed energy (A). Table 6 lists the

solar control properties of the Lexan Thermoclear sheet

range and Lexan Thermoclear Venetian products.

Solar Control Properties

Table 6: Total Solar Transmission

in % Solar Control IR (LTC-IR)

Structure Grade Name

gauge (Inch)

weight (lbs/ft2)

rib distance (Inch)

ISO 10077 U

value•(W/m

LT** SC IR Green (%)

LT** SC IR Blue (%)

LT** SC IR Grey (%)

TST

# SC IR Green (%)

TST

# SC IR Blue (%)

TST

# SC IR Grey (%)

SC¶ SC IR Green (%)

SC¶ SC IR Blue (%)

SC¶ SC IR Grey (%)

2-Wall 2UVIR6/2RS13 0,24 0,266 0,24 0,627 66 60 0,69

2UVIR8/2RS15 0,31 0,307 0,39 0,574 65 61 0,70

2UVIR10/2RS17 0,39 0,348 0,39 0,532 65 52 20 60 58 42 0,69 0,67 0,48

3-Wall 2UVIR16/3TS27 0,63 0,553 0,79 0,400 55 36 52 49 0,60 0,56

3-Wall X-structure 2UVIR16/3X29 0,63 0,594 0,63 0,370 46 29 22 45 32 30 0,52 0,37 0,34

5-Wall 2UVIR10/5RS175 0,39 0,358 0,31 0,421 48 48 0,56

2UVIR20/5RS33 0,98 0,676 0,71 0,312 46 46 0,53

5-Wall X-structure 2UVIR20/5X32 0,98 0,655 0,79 0,298 24 37 0,51

2UVIR32/5X38 1,26 0,778 0,79 0,232 36 20 12 42 35 30 0,49 0,40 0,34

6-Wall 2UVIR16/6RS27 0,63 0,553 0,79 0,324 42 45 0,52

•U-values based on Sabic calculated values according ISO 10077 (EN673)

**LT (Light Transmission) measurements according ISO 9050 (EN 410) on 600x600 mm samples

#TST (Total Solar Transmission) measurements according ISO 9050 (EN 410) on 600x600 mm samples

‘‘¶Shading Coefcient (SC): The ratio of the total solar radiation transmitted by a given material to that transmitted by normal 3 mm glass,

whose light transmission is 87%. SC=%TST/87.”

Exterior

Solar

intensity

Reflection (R)

Radiation to

the outside

Interior

Direct solar

transmission (DT)

Radiation

to the inside

*Total solar

transmission (TST)

Absorption (A)

200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400

0 5 10 15 20 25 30 35 40 45 50

Wavelength

Minutes (m)

9ºC Difference

Harmful UV Visible Light Heat-Generating Near IR

Light Transmission of 16mm sheets

with identical 0.44 shading coefficient

Internal Temperature Reduction - Comparison

Transmission (%)

Lexan* Solar Control Sheet 55% LT

Standard Sheet

Opal 48% LT

Lexan* Solar Control Sheet

Delta Temperature (ºC)