The sequence of laying a felt roof is.
How do you felt a flat shed roof.
You can either measure the roof from the ground or by standing on a ladder and actually going up on the roof.
Begin at the bottom right or bottom left of the roof.
You wan walk over the roof to remove any air bubbles that may form.
Once you ve secured the side panels in place add the top section to the ridge and fix it using high performance felt adhesive applied with a paint brush then nail it at the lower edge at 5cm intervals.
Gradually unroll the paper across the rooftop stopping to add more staples every 1 2 feet 0 30 0 61 m.
It s best to start nailing in the center and work out from there.
Laying the second bonded layer of underlay felt.
Follow the 10 steps below in order to felt a flat roof.
Afterward roll the felt away from you lengthwise along the lower edge about 10 feet 120 in.
Line up the loose edge of the roll with one of the bottom corners of your roof and fasten it using 10 12 staples grouped closely together near the center of the strip s edge.
Laying the top bonded layer of top sheet felt.
The first step in felting a shed roof either angled or flat is calculating the exact dimensions of your roof.
Paint a thin layer of adhesive over the first felt layer.
Multiplying these two together will give you the square footage of the roof.
Laying the first nailed layer of underlay felt.
You can hammer in the nails along the bottom edge of the roof at wider intervals around one every 30cm.
Once measured and cut line the first piece of felt up so that it over hangs the edge of the roof on three sides by enough to cover the side pieces of the roof.
As you roll it out make sure that it remains flat.
Attach strips of felt roofing paper for baseline protection.
You will then need to measure the length and width of the roof.
When you are felting a sloped roof you start at the bottom and work your way up so that rain pours over the top of the laps and not under them.
Apply the cut felt to either side of the roof pulling it tight so that it lies flat before nailing it at around 10cm intervals along the length of the roof just below the apex.
This layer is not bonded to the decking so that the decking can move without damaging the felt roof.
You can do this by calculating the length and width of each side of your roof.
There needs to be an overlap in the felt to help increase the water tight quality.
Simply multiply length x width and you will find the area of one side.
