The most common roofing material for residential houses are asphalt-shingles because depending on the grade and manufacturer, they can last 50 years or longer. asphalt-shingles are available in a wide variety of colors and styles to match your design ideas. Over the course of time, weather conditions, damaging situations such as falling tree limbs and walking on asphalt roofs, damage can be caused to one or more shingles. Walking on roofing-shingles causes a lot of damage especially in cooler months when it shingles are more fragile to begin with.

The foot traffic cause the small granules to wear off and this strips the asphalt-shingles of their protection. Limit walking on a roof as much as possible to extend the life of the roof. Just because 1 or 2 shingles has damage, it does not mean you have to replace your entire roof. If more than 25% of the roof has damaged asphalt-shingles, replacement is probably best. Damage includes, worn off granules, splitting shingles, curling shingles, cracking shingles or very discolored.

Always take safety precautions when working on a roof such as a safety harness, the use of roof brackets to avoid slip and fall accidents. If the roof is very tall or steep, considering hiring a roofing contractor.

Do not attempt roofing repairs on cold days unless absolutely necessary. The cold weather will cause asphalt roofing shingles to become brittle and you can do more damage to your roof. If possible wait for the weather to become warmer to make any repairs.

Pry the nails out of the damaged roofing shingle. The nails may be hidden under the side roofing shingle tabs. Pry the nails out of the next shingle that shares nailing with the damaged shingle.

Seal the nail holes with roofing cement or roofing sealant caulk loaded into a caulking gun.

Place the replacement-shingle under the row located above the repair until the only the part of it with granules sticks out.

Use galvanized roofing nails to secure it in place. Do not use other types of nails because the will rust and wear away possibly causing area where water will leak in.

Paint a thin line of roofing cement or caulk a thin line of roofing sealant under the tabs of the replacement shingle to secure the edges in place. Press the edges down to force them to adhere to the existing asphalt roofing shingles. Hold them in place for a few minutes until you have a bond.