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Pointer To Roof Repair Tip #27
Roof Repair

Your metal roof needs a new coating every 2 years and touch-ups at frequent intervals, especially after storms have deposited debris or branches on the roof. To coat your roof, select a good quality roof coating.

Consider a reflective (white) coating rather than a gray coating, especially if you live in the southern states. The light colored coating will reflect the sun's rays and reduce your cooling costs.

  • Materials: roof coating, patching cement, diluted chlorine bleach solution and strong detergent (if needed); Tools: wire brush, putty knife, coarse sandpaper, stiff-bristle paint brush, paint roller, broom, garden hose, roof-coating brush.
STEP 1: Check Weather
Before you start, make sure rain isn't forecast. The temperature should be over 50 degrees F. Lower temperatures or high humidity will affect the curing process of the roof coating.

STEP 2: Inspect
Just because you don't have a leak doesn't mean your roof hasn't deteriorated. Look for blisters, cracked seams and peeling roof coating.

STEP 3: Clean
Use a wire brush, coarse sandpaper or a putty knife to remove any flaking roof coating. Pay particular attention to seals around the j-rail, roof seams and flashing. This is an important step because it provides a clean surface for the new roof coating. Use a broom to sweep away loose material.

STEP 4: Repair
Use the methods described later in this chapter to repair any splits and patch any holes. Reattach any loose screws. Treat any mildewed spots with diluted chlorine bleach. Then rinse the mildewed area with a strong detergent such as T.S.P.
STEP 5: Rinse & Check For Puddling
Use a garden hose to wash your roof. Check for puddles. Determine if the puddles are forming because the house is  not level, the gutters are clogged or there is an indentation in the surface. Dry off the water, then check the metal for deterioration. Cover this area with a metal primer.
Step 5

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