THE MAKROLON SYSTEM has been re-named to LASERLITE MULITWALL click here to go to the updated page.

Makrolon twin wall polycarbonate glazing system provides outstanding flexibility in design and advanced heat reflecting and light transmitting performance. Both sides of the sheet have a co-extruded UV barrier which provides protection from 99.9% of harmful UV radiation, giving superior resistance to outdoor weathering. The flat appearance of the sheet means it is aesthetically pleasing.


Makrolon Twin Wall Polycarbonate Range Specifications

Colours Grey Tint Platinum Bronze Tint Opal Clear
Light Transmission 25% 20% 46% 6% 76%
Heat Transmission 42% 18% 62% 9% 73%
Shading Co-Efficient 0.64 0.42 0.78 0.31 0.88
Solar Heat Gain Coefficient (SHGC)  0.55  0.36  0.68  0.27  0.76
U Value  3.1 W/m2k
Warranty 5 years against weather breakage – including hail up to 25mm10 years against loss of light transmission>

Makrolon Twin Wall Profile Specifications

Profile Specifications Makrolon Twinwall Polycarbonate Profile Diagram
Sheet Width 1050 mm
Rafter Centres 1070 mm
Purlin Centres 1200 mm (max)
Maximum Overhang  50 mm
Minumum Curve Radius  1750 mm
Available Sheet Sizes  2.0m, 2.5m, 3.0m 3.5m, 4.0m, 4.5m, 5.0m, 6.0m, 7.0m, 9.0m
Recommended Roof Slope  5 Degrees


Things to note

When rafters are at 1070mm centres no purlins are required (expect in high wind areas), giving the most aesthetically pleasing and cost effective structure.

Silicones are not recommended for Polycarbonate sheeting.

Sheets can be cut to length free of charge before dispatch, otherwise a fine tooth circular saw can be used.

Download the full installation guide lines below.