Applying roofing felt first will better protect the sheathing against condensation as well as against leaking.
How do you put on rolled roofing.
An underlayment of felt roofing is optional.
Place the top edge of the roofing along the chalk line.
However roll roofing does not look nearly as good as shingle or tile so it is typically only used on roofs that are not readily visible.
Rolled roofing has become more and more popular in recent years.
It is a great option for flat or nearly flat roofs since they aren t visible from the ground and is a project that you can do in a day.
This should give you a 1 inch overhang on the eaves including the top edge.
If you get the right materials and stick.
2 layers for low slope roofs 15 25.
Roll modified bitumen roofing sheets over the entire roof.
Repeat this with each roll until the roof is covered overlapping each sheet by about 3 8 in 0 95 cm.
Just be sure that the side edge of this roll is overlapped by at least 6 inches of the side edge of the next roll and that you seal the seam between the two with cement.
Bitumen roofing rolls can be large and heavy so get help carrying them up to the roof if necessary.
Before you will learn the way how to install rolled roofing you should know that laying the roll roofing material depends on several factors and first and foremost it s the slope of the roof.
You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square.
If the roof is sloped you can use the exposed nail method.
When compared to shingles rolled roofing is far cheaper and much easier to apply.
You don t need to get a professional in to apply rolled roofing to your house or shed you can do it yourself.
If you find that you run out of roll before you make it across the entire length of the roof during one of the courses this is not a problem.
Start at 1 end of the roof and unroll the bitumen to the other end.
The roofing should overhang the eaves by inch except where you install drip edge flashing on top of the roofing along the rake edge.
For example the number of layers must be.