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    4 Common Roof Problems in the Pacific Northwest

    Moss on the roof
    On the East Coast, homeowners have to worry about hurricane damage to their roofing. Likewise, the Pacific Northwest presents specific problems for your roof, which is tasked with the difficult job of shielding you from weather day in and day out. Here are some roof problems you especially need to watch out for if you live in this region.

    1. Condensation in the Attic

    Too much moisture in your attic can lead to big problems, both health hazards and structural issues. That's because moisture tends to condense on the downward-facing side of your roof, getting the plywood all wet and keeping it that way day in and day out. And when even the outside air is damp for most of the year, you might struggle to control the moisture.

    As you can imagine, moisture starts a big party for mold, rot, and mildew, which can compromise your roof's structural support and spread a mold infestation throughout your house. 

    Fortunately, you can take a number of steps to reduce the amount of moisture that escapes into your attic. You can have a contractor install extra insulation and close up leaks between your living space and the attic. You can also have extra roof ventilation put in to keep the roof the same temperature on both sides so it won't collect condensation in cool weather.

    2. Moss and Algae Growth

    Typically, these growths tend to flourish on shady roof slopes, especially north-facing sections. But in the cloudy Northwest, moss may even thrive in only partial shade. You can discourage moss if you choose a metal roofing material or add zinc or copper strips to your shingles, as well as cleaning your roof off regularly.

    If you have moss or lichen on your roof already, though, be sure to call a professional to remove it. Don’t use a power washer on your own roof because typical power washers have much higher pressure than is safe for the asphalt material.

    3. Pest Infestations

    Termites can be a huge problem, especially if you have difficulty keeping your attic dry. Some termites enter your home through the soil, while others are attracted to high-moisture situations such as leaks or condensation in the attic. Termite treatments around your house, a barrier in your crawl space, and wire mesh over any openings can help exclude termites.

    Rodents such as mice, rats, and bats, and even larger animals such as raccoons may find your attic extremely appealing compared to being out in the wet. These animals can even be a problem in heavily populated urban areas.

    Although they won't live in the roof structure itself like termites will, animals can gnaw at rafters, tear up insulation, and chew on electrical wires. Raccoons can even rip up shingles and tear through solid wood. Keep openings closed off (including crawl space access, weep holes in brickwork, and attic vents) or screened with metal mesh.

    4. Wind Damage

    In many areas of the region, wind events of 40 to 70 mph or even higher are all too common. An asphalt roof, especially as it ages, can often sustain damage in this type of windstorm even if you don't have any trees falling on your house. This is a great reason to either make the switch to a metal roofing or else to choose the highest-rated wind-resistant asphalt you can find.

    After each wind event, use binoculars to check your roof for gaps in the shingles, any shingles that are torn or creased, or shingles with their lower edges slightly raised. Raised edges indicate that the seals have been broken, meaning those shingles need replacing.

    These are just four potential roof problems common in the Pacific Northwest region. Whether you need help preventing, identifying, or repairing roof damage, get in touch with Bill's Roofing Inc. today to learn what we can do for you.