Item 656632 model 0903000.
Old felt flat roof.
Unlike a steep roof laying roofing felt on a flat roof is easy for even novice do it.
It s best to start nailing in the center and work out from there.
Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.
The old felt should be stripped off and the boarding aswell so you have a clean service for rubber or you can primer for a fibreglass roof.
Roofing felt is one of the oldest available options and advances made in the past decade or so have begun to move more towards the torch on approach.
This is done to ensure a flat surface for the roof felt.
Applying roofing felt on flat roof is relatively simple and it s safer than working on a peaked roof.
Lay down felt and secure to roof.
Hope all goes well.
There needs to be an overlap in the felt to help increase the water tight quality.
You must remove any rotted pieces of wood on the roof and replace them with your plywood planks.
This is now one of the most widely used systems across the uk.
There are many different types of flat roofing systems available each one with their own pros and cons.
But if the felt roof is done with good thickness high performance felt it should last a long time depending on when it was done.
You will be placing the second layer of felt over this.