Well tim there are not a lot of hard and fast rules in roofing but there are some guidelines and some little things that definitely make a better more problem free roof.
Roofing paper ice.
Grace ice and water shield fully adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams.
Item 169827 model 5003002.
Grace ice water shield 36 in x 75 ft 200 sq ft rubber roof underlayment.
If you see ice and water shield being installed you might think it is felt paper.
Roofing ice and water shield may look like traditional felt paper but it s vastly different in performance.
Gcp invented fully adhered roofing underlayments more than 35 gcp invented fully adhered roofing underlayments more than 35 years ago.
First on the front edge of the roof overhang you should nail on a drip edge.
Tim wrote in asking if he should use roofing paper on his roof in addition to ice and water shield.
What does felt paper do.
Grace ice and water shield roofing underlayment a registered trademark of gcp applied technologies is the name that contractors trust the most to protect their reputations.
Traditional felt paper does a decent job at stopping most leaks where water gets under shingles tiles metal or slate.
This metal flashing runs a couple of inches up the roof out over the edge and then bends down and back.
Ice and water shield is a far superior product compared to basic roofing felt paper.