Preventative Maintenance for Residential Asphalt Shingle Roof Systems:
* Clean all debris from the surface of the roof. This includes debris that has gathered behind HVAC units, pipes and pitch pans, and any other roof penetrations. Debris has a tendency to hold water, and water will expedite roof deterioration, especially if your roof is asphalt based such as a built-up roof or asphalt shingles.
* If your roof is starting to collect moss or algae, install some zinc or lead control strips.
* Check all flashings and make sure that they are not deteriorated and there are no holes in them. * Keep algae off of the roof surface. Install zinc control strips along the hips and ridges if necessary.
* Dab some roof cement under any loose shingle tabs. One dab on either side should do.
* Replace any damaged shingles.
* Keep all gutter free of debris. Make sure that the downspouts are draining properly by water testing them.
* Trim back any overhanging tree branches.
* Check the open valley metal for rust. Wire brush the rust then prime and paint the metal. If rust is prevalent, it can be removed using Rust-Away® Oxidation and Corrosion Remover. Manufactured by Hocking International, 2121 Hoover Ave., National City, CA 91950. Ph: 619/474-8457 Fax: 619/477-5630. It works very well. Paint the valley with Rustoleum® or similar product afterward.
* Check all caulking and sealants. Scrape and remove any caulking that is weather cracked and damaged. Clean the area thoroughly. Use a wire brush if necessary. Reapply a polyurethane caulking such Vulkem, NP-1, or equivalent.
* Check the mortar on chimneys and parapet walls, both in between the brick and on top. If it’s damaged or deteriorated, have it tuck-pointed. Any mason can perform this work.
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