You do neet to separate the pvc and any asphalt tar based material but this is a fairly simple and inexpensive process and is done all the time.
How to install pvc roofing sheets.
The advantage of the pvc polycarbonate roofing is the translucency of the panels.
Pvc will block out the heat from the sun much more effectively than sheet metal which will act like a radiator.
However the instructions can be applied to porches awnings gazebos and sheds.
You best option is to use fleeceback pvc or a separation sheet.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
If cost is a factor pvc is a cheaper alternative to sheet metal.
It includes a list of the tools and materials you ll need a checklist and important warranty details.
The pre drilled holes should be eight to ten millimeters in diameter and two millimeters wider than the fasteners you are using to allow room for.
The vistalux installation guide explains how to install pvc roof sheets on a car port or lean to.
Choose pvc roofing to let light in.
The installation of plastic roofing is much easier if you drill the holes for the fasteners in advance.
How to install polycarbonate roofing onto a timber framework to make a carport this video shows the step by step instructions using the hawk glazing bar sys.
The brightest ideas in pvc roofing sheet.
Install the roofing screws vertically along each rib in the panel.
Yes you can install pvc over torch down tar roofing.
How to install vistalux roofing sheets.
Ideally you should aim to have the fasteners at the high point of every fourth corrugation.
They allow daylight to enter through them.
With standard diy tools and is available in a choice of corrugated profiles sheet weights and lengths.