There are many factors to consider in selecting the appropriate materials for your roof.  Consult the experienced professionals at Sunrise Roofing, (530) 243-8210.

The Hostile Roof Environment
Here in the north state the weather plays a significant role in the aging of your roof.  We have an intense summer sun, which scorches the surface of the roof and can raise the rooftop temperatures anywhere from 50 to 75 degrees above the ambient temperature.  The sun's rays are relentless, and also subject your roof to severe ultraviolet radiation.  UV rays have been shown to accelerate the aging of shingles.  Additionally, as the weather changes the temperature fluctuations causes thermal shocks which force the roof deck to expand and contract, and place a strain on the shingles.  Year after year, this process is repeated, and results in a cyclic fatigue of the shingles.

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*Suggested manufacturer warranty.  See your dealer for details.