Roofing in Cambridge, MA

The median home in the city of Cambridge was built in 1950, older than the U.S. median of 1980 and older than the Massachusetts median of 1964.¹ On a roof of that vintage a contractor should check the decking before quoting - a tear-off rather than an overlay is the usual recommendation so soft sheathing is found, not buried. The stock is old by national standards: 68% of Cambridge's housing units were built before 1980 (U.S. 50%), and only 12% since 2010.¹ Rainfall is substantial: about 44 inches a year, 10 days of it an inch or more.^2,3 Where heavy-rain days are common, the quote should name the underlayment and the valley and flashing details, which is where most leaks start.

Snowfall averages about 49 inches a year.^2,3 With real snow, ask for ice-and-water membrane at eaves and valleys and for attic ventilation to be checked - ice dams form where warm attics meet cold eaves. Summer heat is moderate: about 14 days a year reach 90°F.^2,3 Cambridge is about 7 miles from the ocean or Gulf coast in a straight line.^4,5 Near the coast, fastener grade and wind rating matter: ask for stainless or hot-dipped galvanized fasteners and for the installed wind rating of the shingle system.

Owner-occupied homes in Cambridge are older than rentals: a median build year of 1938 against 1968.¹ Where owner-occupied homes skew older, a repair-versus-replace conversation is the usual starting point rather than a like-for-like swap. Building permits in Cambridge are normally issued by the city building department.^6,7 Re-roofing permits, where required, are filed by the contractor with the city before work starts.