Felt paper should extend at least 10 inches up each side of the roof valley so use a strip between 20 and 24 inches wide.
How to lay roofing felt in a valley.
Lay the felt paper from the top of the roof valley to the eaves at the roof edge.
Drip edges on the eaves any valley liners and all flashing should be installed before the tar paper is laid.
After this lines should be snapped every 34 as you move up the roof.
While laying felt is not an easy job it can be done by anyone who has the patience to deal with it.
If it gets wet it will wrinkle making it harder to shingle.
Most roofing suppliers carry 15 lb.
Chalk lines should be snapped 33 5 8 above the eave line.
Start at the top.
Before laying roof felt all rotten decking must be replaced.
The next one goes on the low side.
The last layer should go over both sides of the roof overlapping both side covered in felt.
Using your staple gun secure the felt to the roof.
When working with a helper expect to spend several hours to install drip edge wsu and roofing felt on a medium sized roof.
Start by overlapping a starter from both sides of the valley at the bottom.
Check to ensure the roof is in good enough condition to walk over.
When you reach the valley lay the shingles over the valley and trim the edges to the chalk line.
How to install felt underlayment for a new roof.
If you need to temporarily protect a roof cover it with plastic sheeting or a tarp.
Install new flashing metal flashing is often called drip edge along the.
Felt if you plan to leave the paper exposed for more than a couple of days because it wrinkles less then 15 lb.
For an apex roof start at the bottom and lay it horizontal the next should overlap as in video so the water runs over the join as it runs off the roof finishing at the apex or top of roof.
Felt doesn t tear as easily so it s safer to walk on when you re working on steeper pitches.
Felt is laid on a flat roof to help keep the roofing system waterproof.
Then your first shingle goes on the side you are going to cut.
Felt works just fine.
For most applications 15 lb.
If you live in an area with inclement weather you should consider using a special ice and water protector.
Over driving nails is always a.
You can center it and align it smoothly with the roof contours as you go down.
Here are simple steps to get you started.
Use a broad strip of felt paper.
You want to lay the shingles from the bottom to the top of the valley.
Do not use felt as a temporary protection against rain.
Weave and cut the valley on the highest side of the roof.
Step 1 prep work.
Nail down each valley shingle at least two inches 50 mm back from the chalk line.
It starts with installing solid decking usually plywood or oriented.
Begin to install roof shingles on either roof face.
You can use a straight edge to achieve a straight cut.
