How Much Does It Cost To Install Roofing Underlayment?- roof underlayment stapler for roof ,4/7/2021· Roof surface will be cleared of debris, protruding nails set, and material rolled into place. The underlayment will be overlapped and secured according to manufacturer specifications for optimum installation and functionality.The 10 Best Underlayments for Roof Shingles2/8/2020· 36-in x 71.75-ft 200-sq ft Felt Roof Underlayment from Lowes. This is another highly rated option for roof underlayment. The great part about it is that it is much less expensive than the previous two options! It meets ASTM D226 standards. Although it is felt, it is still a highly rated product.