It offers a 10 year non-prorated warranty against loss of light transmission and yellowing in accordance to ASTM 0-1003, thanks to the co-extruded UV protected PC layer fused to the PC substrate of the sheet.
When Polycarbonate twin wall sheet is used as a structural element in roofs and walls, the forces applied by wind and snow loads must be absorbed by a suitable structure. Also, adequate locking devices must be used to protect the whole structure (PC sheet and metal or wood structure) against wind suction.
The anticipated structural load values are specified in local building regulations. The total applicable load deflects the sheet. For safety and aesthetic reasons, the maximum bend should be limited to 5% of the dimensions of the shorter side of the sheet.
For a 4′ wide sheet
Maximum Purlin Spacing (inches) sheet deflection -1″
For a 6′ wide sheet
Maximum Purlin Spacing (inches) Sheet Deflection -1″
Glasteel’s PC sheet has a higher heat expansion coefficient than standard construction materials such as glass, steel and aluminum. Specific clearance between the sheet and the structural frame has to be calculated in order to ensure proper installation.
Heat Expansion Coefficient (inch/ftºF)
4 x 10-4
5 x 10-5
8 x 10-5
1.6 x 10-4
Glasteel’s Macrolux Multiwall sheet is produced using high-quality polycarbonate resin made by Bayer. It does not burn easily and has been defined as a self-extinguishable material by international standards in different countries.
ClassA (NFPA); Class (UBC)
Low Smoke Density (UBC standard No. 26-5)
Self Ignition Temperature greater than 650ºCF
Change in the light transmission of PC sheet in time
Change in the yellowness index of PC sheet in time
Excellent lightweight resistant material fabricated with the High-tech Macrolux polycarbonate resin of Bayer.
It has a high resistance to harmful effects of weather, including hail damage and surface erosion. Additionally provides UV protection.