Roofing in Stoneham

For a standard asphalt roof on an average house, it is at the top of the range -- most Greater Boston single-family replacements land at $12,000 to $22,000. It is entirely reasonable for a large or steeply pitched house, a roof with a lot of dormers and valleys, or cedar shake at $12 to $20 a square foot. The number alone does not answer the question; what the quote itemizes does. If it does not break out area, tear-off, decking and the ice barrier, no figure can be judged.

It is a Florida rule and it has no force in Massachusetts. The 25% rule comes from the Florida Building Code Existing Building, where repairing or replacing more than a quarter of a roof within a year can require the whole roof to be brought up to current code. Massachusetts has no equivalent provision -- what governs here is the state building code and your own municipality's permitting. It turns up in searches because national content repeats it without saying which state it belongs to.

Almost nobody in this trade quotes roofing by the hour, and you should be wary of one who offers to. Replacement work is priced by the square -- 100 square feet of roof area -- because the quantity is measurable and the risk of the job running long sits with the contractor rather than with you. Hourly pricing turns delays into your problem. Small repairs and diagnostic work are the exception and may carry a call-out or minimum charge, which should be stated up front.

Not on age alone. Twenty years is well inside the normal service life of architectural asphalt and at the end of it for three-tab, so the first question is which you have. Then it is condition: granule loss, brittleness, how flat the covering lies, whether the deck is sound. North of Boston, add one more -- whether it has been damming. A roof with twenty winters of meltwater under its bottom courses is considerably older at the eaves than it is anywhere else, and that is where it will fail.