What types are available?
There are a a wide variety of polycarbonates. Some selections include clear polycarbonate sheets, white polycarbonate, colored polycarbonate, laserlight and more.
How durable is it?
It can last up to 10-20 years, depending on the profile of polycarbonate roofing you choose.
How much maintenance is required?
Little to none. Polycarbonate roofing is incredibly durable.
DIY or get a professional?
Either. But if you DIY, follow these tips:
Here are a few tips to follow when installing polycarbonate roofing.
• Install the polycarbonate sheets at a minimum pitch of 5 degrees (that is, This allows rainwater to run off toward the gutter and prevents moisture from collecting on your roof)
• Temperature changes throughout the day will cause the roofing sheets to expand and contract, so you need to make allowances for this thermal movement. Otherwise, the resistance to these temperature adjustments will cause your roofing sheets to buckle.
• When installing polycarbonate roofing, it is considered good practice to pre-drill the screw holes before fixing the sheets. It is also recommended that you slightly oversize these holes to make room for the thermal adjustments described above.
• Caps and flashings should likewise be pre-drilled so that when installed, the roofing sheets underneath can also shift as the temperature changes.
• You must install the sheets with the UV-protected side facing the sun. Look for a sticker that tells which side is UV-protected. Also take care not to scratch the sheets during installation as this will damage the UV protection layer.
• Also pay attention to the prevailing wind direction and make sure you lay down the sheets in the correct orientation. The last thing you want is for the wind to tear away your polycarbonate sheets.
• Use purlin tape on all the surfaces that come in contact with the timber.
• Don’t use sheets with purlin spacing wider than recommended. If you do, the sheets may sag and let water collect and pool in the sagging areas.
• We do not recommend using silicone to cure polycarbonate roofing because polycarbonate sheets expand and contract much more widely than silicone. But if you have to use it, use only neutral cure silicone.
• The polycarbonate sheets come with a list of the manufacturer’s recommended infills and back channels. Do not use bitumen-impregnated foam infills. These will damage the polycarbonate sheets!
• If some sheets will end up overlapping a gutter, drill a 5mm hole into the pan 10mm from the edge of the sheet. This will provide a drip-off point.
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Post time: Mar-18-2022