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The Home Depot

Asphalt Shingle Roofing Repair Guide

Pro Referral > Home Guides > Roofing > Asphalt Shingle Roofing Repair Guide
Asphalt Shingle Roofing Repair Guide

An inexpensive, simple, and easy-to-install variety of roof shingles is the asphalt shingle. These can be of two types—organic and glass fiber. The former is generally paper saturated with asphalt which makes it waterproof. A top coat of adhesive asphalt is then applied and ceramic granules are embedded in it. In fiber glass shingles, there is a base layer of glass fiber reinforcing mat made of wet, randomly laid fiberglass bonded with urea-formaldehyde resin. Then it is given a coating of asphalt containing mineral fillers to make the fiberglass waterproof.

  1. Proper maintenance can extend the life of an asphalt shingle roof to 20 years. Watching out for problems and fixing them as soon as they are found can help in this regard.

    1.Building Permits

    Roofing work requires building permits in most cities and you must adhere to the rules and regulations specified on the city’s websites. In some cases, inspections may be required after you finish the roof repair work.

  2. 2.Every Situation is Different

    Proper maintenance can extend the life of an asphalt shingle roof to 20 years. Watching out for problems and fixing them as soon as they are found can help in this regard. Over the years, the granules on the top layer tend to fall off and this makes the shingles vulnerable to leaks. If your roof is older than 15 to 20 years, it might be time to replace it entirely rather than repair your roof. Is it up to you; if the roof still looks good, robust, and mighty, perhaps some repairs are all that is needed to give your roof another 5 year life span or more.

  3. 3.Repairing Cracked Shingles

    A caulking gun is needed for this and using it you can apply roofing sealant on the cracked shingle. You must pull up the cracked shingle with your hand in order to look under it. Then place a thick lump of sealant underneath the crack and press down the shingle and hold it in place for about 30 seconds. Then apply some sealant on the top of the shingle, down the entire length of the crack. Use a putty knife to smooth the sealant evenly in place.

  4. 4.Fixing Torn Shingles

    A torn shingle can be repaired by applying some roofing cement on the back of the torn section with a putty knife. Then press together the two pieces so they bond and also stick to the shingle underneath. You can then nail it into place. A curling shingle is also fixed in a similar manner but if the shingles are completely damaged, they must be removed and then replaced. The corners of asphalt shingles begin to start curling upwards or downwards as they get older. Gluing down the curled corners can help postpone the inevitable for some time.

  6. 5.Replacing Shingles

    Using a flat shovel, you must first pry out the nails in the damaged shingle. Pull out the nails completely one after another with the help of the pliers. Then you must measure and cut out a replacement shingle of the appropriate size. Then, this can be slid in place of the shingle which has been removed. Then drive the nails through the holes left after the removal of the old shingle. If the old nail holes are unusable, then ensure that you seal them with roofing cement before making new holes. After nailing the shingle in place, apply roofing cement with the putty knife to the nail heads and the loose parts of the shingle. In some case, you might have to use some roof flashing to support the damaged asphalt shingle. Here, you can follow the same process while substituting the asphalt shingle with the metal flashing.

  7. 6.Some Tips

    One way of testing the condition of the asphalt shingle on your roof is by bending the corners of a couple of shingles. If these break instead of flexing, then it means the shingles are nearing the end of their useful life. When repairing shingles, you should confront this task in warm weather to prevent them from cracking while you are working on them (certainly if you can afford to wait for the winter to expire).


    Also, cold and wet weather will leave moisture on the roof and make it slippery, thus increasing the risk of accidents if you have to walk on the roof to make repairs. Dabbing a spot of cement over the nail heads will help prevent the water from leaking into the nail holes. Some of the tools you will need before you climb onto the roof include a hammer, roofing cement, pliers, putty knife, replacement shingles, metal flashing, a flat shovel, and industrial scissors. That is why you bought that fancy tool belt!


    Related Guides: Roof Repair Cost

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