Roofs in Milford, Massachusetts need extra protection because of the extreme wind/rain and snow. You may need to install a product known as an “ice and water shield”. You place this product underneath the shingles. This is a good defense against leaks. This product self-seals around the area where the nails are. The beauty of it is that you can install it over the entire roof. Most people use it at the bottom to protect against ice and very cold areas.