Lawrence Chimney & Roofing | Roofing Services in Nashua, NH 03060

In our climate, the underlayment is your roof's critical secondary barrier. Nashua's heavy snow and ice can lead to ice dams, which force meltwater back under shingles. A compromised underlayment allows this moisture to seep into your roof deck and attic, causing rot, mold, and insulation damage. We inspect and repair or replace underlayment with premium, water-resistant materials to ensure this vital layer protects your home year-round.

Aggressive scraping or pressure washing can strip away the protective granules on asphalt shingles. Our method for Nashua homes involves a gentle, low-pressure application of EPA-registered, zinc-based cleaning solutions. This effectively kills the moss and algae at the root. We then manually remove the dead growth, followed by a rinse. For long-term prevention, we can install zinc or copper strips along the roof ridge, which release ions that inhibit future moss growth with each rain.

Keep an eye out for interior signs like water stains on ceilings or walls, especially after a thaw, which can indicate water is getting past the shingles. In the attic, look for dark streaks or dampness on the underside of the roof deck. Exterior signs aren't always visible from the ground, but curled or buckling shingles can be a clue. If you notice any of these, it's wise to have us perform a professional inspection. Catching underlayment damage early prevents much more extensive and costly repairs to your home's structure.