Pottery-design polycarbonate sheets are identical to corrugated polycarbonate sheets in terms of physical structure. Therefore, their installation instructions for cutting and drilling are also similar. However, the following recommendations are made for a better installation, given their different applications.
The proper purlin spacing for the installation of pottery-design polycarbonate sheets is around 80 cm. Given the intrinsic properties of polycarbonate, including its strength and sound and thermal insulation properties, no additional subsurface preparation is required for installing polycarbonate sheets, and they can be directly attached to the structure. However, the standard subsurface must have a 10° or higher slope. It should be noted the sheet should be installed without any distortion.
at every drilled pitch, one-piece flashing tapes with gaskets should be installed around the screw. Flashing tapes with the same color of the sheet should also be used for a better appearance. The drilling should take place on the crest.
the overlap should be at least one pitch long. In small slopes, the longitudinal overlapping should be two steps to prevent capillary problems.
Transverse overlap: the transverse overlap should be one pitch opposite in the general wind direction in the area. Double-sided adhesive tapes should be used between the two sheets for sealing, or adhesives with the aluminum coating with the same color of the sheet can be used.
Sheet arrangement: the first sheet should be installed from the bottom, and then other sheets can be installed next to the first one. After arrangement, fixtures should be installed for sealing and completing the installation.
1. The crest is used for covering and also giving the structure a better appearance. The edges of the crest should have the same pitch as the pottery-design sheet and should be tightened by screws for appropriate sealing.
2. The middle connector is used for covering places where two edges cross. The connector should be connected to the sheet by a screw.
3. Middle end sealer: the end of each connector should be covered by middle end sealer for a better appearance.
4. Downspout cutoff is connected to the sheet at the lower part before installing the downspout.
5. Edge cutoff is placed at two edges of the roof crest sealer to prevent water leakage.
6. Crest end sealer is used for preventing water leakage at the end of the roof crest.
7. T-junction fitting is used for covering T-junctions.
8. Side connection of sheet and surfaces (wall flashing) is used for connecting the sheet to the wall or other surfaces.