30 Lb Or 15 Lb Felt For Flat Roof

If you opt for thinner felt on a steep roof it is more likely to rip.

30 lb or 15 lb felt for flat roof.

If you experience high winds and some shingles get blown off the felt will protect your home until repairs can be made. Felt paper is commonly produced with a certain number of recycled products and coated with asphalt. I don t use anything other than 30 because i do not trust 15. Felt for a shingle roof.

Roof slope in the case of roofs with a steeper slope you should always opt for 30 pound felt instead of 15 pound. This is beneficial for installation roof protection and all of its other functions. The difference between 15 lb and 30 lb roofing felt paper. Roofing gutters and all waterproofing anywhere 15 lb.

I only use 15 when it s new construction and the builder refuses to pay for 30 and i don t have much work. Those areas are gutter lines valleys and penetrations like chimneys skylights pipes. 15 lb felt paper weighed 15 pounds per 100 sq. Pitch is pretty minimal.

A high quality fiberglass 15 or a standard 30 will do this very well. 15 or 30 lb roof felt for 4 12 pitch porch roo re. They say it s an upgrade. Roofing felt comes in what is better known as 15 pound and 30 pound roofing felt.

I assume its better but some references say to go with 15 lb. Felt i noticed jack recommended 30 lb. It is a steep roof 8 12 high 2 story roof. 30 is better for protecting your home during the re roofing process.

Historically roofing felt paper was named for weight. Use ice and water shield in the critical areas regardless of the felt weight you choose. The best weight for roofing felt is the 30 pound product because it provides thicker and stronger footing for roofers that does not tear out especially on steep roofs where footing is critical. Once the shingles are on the weight of the felt matters very little.

It depends on the shingles regelar 3 tab shingles use 15 lb felt archatectual requires 30 lb felt and sheet metal requires 30 lb felt. One roofing square and 30 lb felt paper weighed 30 pounds per square. We always recommend going with 30 pound roofing felt. This is essential due to its increased slip protection and resistance to tearing.

Felt will wear out over time but you will simply never have a problem if you install 30 pound roofing felt on the deck because the 30 pound roofing felt will last longer than your roof materials. Tear resistance generally speaking 30 pound felt is less likely to experience tears than 15 pound felt.