What is the difference between 15 pound roofing felt and 30 pound felt?
J Quintero Roofing - When should I use 30lb felt? Most standard pitched roofs only need a 15lb. felt for proper underlayment. 30lb. is used for many specialty applications such as: low
Roofing Underlayment: 15-lb and 30-lb Felt Paper
roofing felt Archives - Lyons Roofing
Felt Paper Rolls 15 LB and 30 LB $6.00 per roll FP001 | FreemanLiquidators $6.00