We would recommend a different covering such as grp fibre glass.
Refelting a flat shed roof.
The flat roof is torch on bitumen with torch on flashing this roof has been patched repaired previously torch on felt roofs have an approximate life span of 10 12 years merely as a covering.
You may need to replace the felt every two to three years if your shed s in an exposed location or less frequently if it s sheltered.
Measure the roof the first step in felting a shed roof either angled or flat is calculating the exact dimensions of your roof.
Start rolling the first layer of felt out from the bottom of one side of the roof.
Re felt your shed roof.
The key to weatherproofing your flat roof is adding a total of 3 layers.
You can do this by calculating the length and width of each side of your roof.
A hammer a craft knife preferably with a hooked blade but not essential an old 2 brush and a flat pry bar as seen in my roofing tools section will help.
Continue to step by step instructions.
During a recent period of very windy weather i noticed chunks of roofing felt blowing down the street.
Some poor soul had lost the felt from their shed roof that poor soul turned out to be me in the wind a temporary fix with a tarpaulin took three.
This will help the two layers adhere to each other.
Begin at the bottom right or bottom left of the roof.
Our step by step guide will help you get it done quickly and easily.
Simply multiply length x width and you will find the area of one side.
Felt drip work rapid drip former http www rapiddripformer co uk.
Add the second layer.
Thus you will repeat the earlier steps.
To form the welted drip see edge detail above right cut suitable lengths check but usually about 200mm 8 inch of top sheet nail each length to the timber batten along the edge of the roof with the felt underside facing out and with the sheet hanging down away from the roof ensure that the clean area along the edge of the top sheet line up with the edge of the adjacent sheet.
Before adding the second layer though spread a thin layer of adhesive on the first layer using your trowel.
Afterward roll the felt away from you lengthwise along the lower edge about 10 feet 120 in.
