When considering a new roof for your home, it’s important to consider the state of your attic insulation at the same time. If your roof has been leaking or you have had problems with ice dams, your attic insulation may be inadequate or damaged by moisture.
Benefits of Adequate Attic Insulation
If you have access to your attic, you can do a quick check of your insulation levels. If the insulation is below or level with the joists, then you need to add more.
R-value is a measure of insulation’s ability to resist heat transferring through it. The higher the R-value, the better the resistance. In our part of New England, R49 is the minimum recommended value. R49 translates to a depth of approximately 13 – 18 inches for blown-in cellulose insulation.
A balanced roof ventilation system will provide nearly equivalent amounts of ventilation area at the eave (soffit) and at or near the ridge. Properly installed ridge and soffit vents rely on natural convection to promote the ventilation that will keep the roof cool.
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