Flat Roof Replacement in Lyndhurst

EPDM at $5 to $9 a square foot and TPO at $6 to $12, and on normal residential additions either will do the job if the detailing is right. What matters far more here is the upstand height and the drainage, because both have to work with snow sitting on the roof rather than rain running off it.

Not in itself -- water that clears within a day or two is normal. Water still there a week later is a seam being tested continuously. In winter it is worse than that, because ice over an outlet means the roof has no drainage at all until it thaws.

Architectural asphalt typically gives 20 to 30 years in Ohio and three-tab 15 to 20, but in the snowbelt the honest figure sits toward the lower end of both. What shortens it is not age but the melt-refreeze cycle at the eaves: a roof that dams every winter is being worked on from the bottom up, season after season. A well-ventilated roof with proper ice barrier coverage on this shore will outlast a badly detailed one of the same age by years.

Middle-aged rather than old. Twenty years is well inside the normal service life of architectural asphalt and at the end of it for three-tab, so the first useful question is which one you have. After that it is condition, not the date: granule loss, brittleness, how flat the covering lies, whether the deck is sound. In this climate add one more -- whether it has been damming, because a roof with twenty winters of meltwater under its bottom courses is older at the eaves than it is anywhere else.

Rarely the full term, and less often here than most places. The rating describes the material under test conditions, not a roof on a particular house in a particular climate. On this shore the governing factors are the melt-refreeze cycle at the eaves, roof space ventilation, and how well the thing was nailed on day one. A 30 year product commonly gives 20 to 25 real years in the snowbelt, and a roof nailed badly is on a shorter clock from the moment it went on.