All colours block out 99.5% of harmful UV rays for SUNCOVER and 99.9% for LASERLITE 1000. This is because the UV protection is applied to the top side of the sheet, and has nothing to do with the colouring in the sheet.
It’s important to ensure the sheet is installed with the UV coating facing upwards towards the sun.
Yes. Clearlite roofing generally refers to any type of clear plastic roofing.
There are three main types - polycarbonate roofing, fibre reinforced plastic (FRP) and PVC.
Polycarbonate roofing is the clearest and strongest.
Condensation is caused when warm air collides with cold surfaces. So if the sheets are cold and the air inside is warm (i.e. you have it installed in a sun-room or similar) you will get condensation on the inside.
The only way to stop this is to ensure that the temperature under the sheets is the same as the temperature outside, by using adequate ventilation.
Because Twinwall is insulated (like double glazing), it reduces the chances of getting condensation. So it's more suitable for enclosed areas.
You should try to build your structure in such a way so you don't have to use any sealants.
If you do need to, there are only a few that are suitable (most will adversely affect the polycarbonate). Ensure it says that it's suitable for polycarbonate on the back.
The following are suitable:
HOLDFAST FixAll 220 MS
HOLDFAST FixAll MS Crystal
No. It's nice to have them installed at 610mm to hide the joins, but they don't have to be at that distance.
The purlins (going cross ways) are the ones actually supporting the sheets, and they need to be at 1500mm apart.
Custom Glaze also works best on steeper pitches. 5 degrees is the minimum but we recommend more if possible. This is because the flat part of the sheet is still flexible, and can pool water on shallower pitches.
Yes, if you're picking up we can help you roll it into a tube. I.e. 2.4m sheets will roll into a tube about 200mm wide and 2.4m long.
It's then quite easy to tie onto roof racks or a trailer, the shorter sheets will even fit in a van or station wagon.