Install self-stick underlayment in areas where by codes need it. Typically called “ice-and-h2o” underlayment, it stops drinking water that seeps beneath the shingles from harmful the decking as it sticks to your roof decking to seal out drinking water. It also seals about nails and keeps water from leaking via https://learntomore.com/5-contractors-recommended-in-hinsdale-il-top-experts-for-your-project/