In our industry there are two main varieties of underlayment.
New technology in roof replaces tar paper.
Run a bead from a tube of roofing tar along the bottom edge of the piece of tar paper that you loosened and underneath the bottom and sides of the new piece of tar paper using a caulking gun.
Felt is time tested and approved as a viable option with most residential roofing systems but does this necessarily mean that felt is the best option in every case.
Visit iko s commercial roofing section to learn more about our commercial roofing membranes and related products and accessories what is roofing felt paper.
He s wondering can you just go ahead and shingle over that or should you replace the underlayment.
It would be crazy to try to save that old felt paper.
Roofing materials and the technology behind them have come a long way in the last 15 20 years.
He says he s re roofing an old house.
Press all of the tar paper down against the roof and nail it in place with roofing nails and metal disks.
Felt paper and synthetic.
This used to be the most popular choice for roof underlayment until it was replaced by synthetics.
Oh you should put new felt paper on.
All types of underlayment are made with a basemat which acts as a flexible base layer.
Felt paper also referred to as tar paper was the standard underlayment material in roofing for decades.
To answer this question we first need to understand what options exist for roofing underlayment and the value they provide.
Synthetic underlayments are now a commonplace item and many contractors are choosing to use this superior alternative over the old organic felt paper.
Sometimes called roofing felt underlayment roofing tar paper or roll roofing this is a layer of protection installed between the roof deck and the roofing shingles.
For decades roofers in atlanta have been installing felt paper as an underlayment when replacing roofs.
He took the shingles off and the felt paper is still intact.