Overlap each row at least 3 to 4 inches.
How to staple roof underlayment.
How to do it.
They re certainly faster and easier to install.
Ideally the roof covering material would be installed as soon as possible but in reality the roof may be protected by only the underlayment for days weeks or sometimes months.
Where a roll ends and a new one is begun the two rolls should be overlapped by four inches.
A recent post on underlayments brought up another subject of underlayment attachment.
I am deciding on a contractor for a new roof and as i recall most said they simply staple the underlayment.
If you live in an area with inclement weather you should consider using a special ice and water protector.
I looked at gaf website and their instructions say in bold do not use nails or staples without caps.
Roof underlayment prevents the roof deck from being exposed to the elements before or while the roofing material is being installed.
Apply drip edge to the eave.
Install new flashing metal.
All nails and staples should be placed on the lower half of the paper.
With staples or plain roofing nails the heads can sometimes tear right through the underlayment.
I checked certainteed and all i saw was that they.
Cut drip edge flashing at an angle at the corner press it lightly against the eave end.
The overhang to the next strip should be 3 8 inch.
I only recall one saying they used caps.
Overlap and cut drip edges.
Start by laying asphalt felt or other underlayment over the roof.
Tack it in place at the corner with the end flush with the end of the roof and the bottom edge of the roll right along the bottom of the roof.
Apply and attach drip edge.
However depending on local roofing and fire codes it may be appropriate to secure synthetic underlayments with staples.