Since long ago people have been laying pieces of similar materials on their roofs to keep the rain out. Today in Western society that material has become the asphalt shingle. If you wondered why it is done in the Spring, it is because of the warmer weather. Warmth makes the asphalt more pliable and easier to handle. If you have a leak, you should go into the attic on a rainy day and locate it from there. If this is not possible, look from a distance at your roof with a pair of binoculars to see loose or missing shingles. If there are small holes or cracks, they can be repaired with roofer’s cement. If you have some shingles that are only slightly bent, you can use some asphalt cement and a nail. Make sure the shingles are warm before you try to bend them.
If you do have too many shingles that need replacing, you should start replacing them one row above the area that is damaged. You can dislodge the nails with a flat shovel. Continue until the damaged shingle is showing and then remove it. Your replacement shingle should be cut to fit. If you need two to make it fit with the sequence of shingles, now is the time to do it. Slip the new shingle into the place of the old one you took out. Try to use the old nail-holes. If you can not do this, seal the old holes with sealant before you attach this new shingle. Now, put roofer’s cement over the nails, press the shingle down on the roof to seal the adhesive to the roof and you can now replace the row you previously took off to get to the problem area.
There are other types of shingle roof repair, such as wood shingles. They are not similar to the asphalt and are not all that common. There is also the slate shingle which is even less common and will usually require a professional to replace more than a few damaged shingles. The work can be hard at first for every version, but as long as a small enough area is damaged, the owner may be able to repair it themselves and save money and perhaps time also.