If your roof is old and the shingles have lost a lot of granules, it's time to consider scheduling a roof replacement. A good time for shingle replacement is in the summer when the weather is agreeable. It's also a busy time for roofers, so you may need to wait a few weeks to get the work started. Here are some important steps in the shingle replacement process.
Throw Old Shingles In A Dumpster
The roofer will have a dumpster parked near your house so the crew can tear off old shingles and throw them in the dumpster. This process usually goes fairly fast. They may place a board along the edge of the roof to catch loose nails and shingles as they slide down the roof so you won't have a mess in your yard to clean up.
The old underlayment gets torn off too, so the only thing left on the roof is the bare deck and flashing. Roofers sometimes use the same flashing for the new roof as long as the old flashing is still in good shape. However, they can remove old flashing too and throw it out.
Put On The New Roofing Shingles
Before shingle replacement begins, the roofer puts the underlayment on the deck. Shingles are put over the underlayment starting at the edge of the roof and working toward the top. Shingles are put on a row at a time. The roofer will probably use an air gun to drive in the roofing nails along the top of the shingles. The nails are then covered by the row of shingles placed on top.
When applying a row of shingles over a row of shingles below, the roofer is careful to stagger the seams as this helps keep rain and leaves from collecting between the shingles. Also, the roofer presses the adhesive to the roof so the shingles start to bond. Shingles come with a line of adhesive on them that helps the shingles stick to the roof. However, it takes time for the adhesive to warm up, melt, and complete the bonding process.
Shingle replacement can go fast. Your roofer might complete the job in a day or two. They may tear off all the old shingles completely and start putting on new ones if you have a small home. If your home is large, the roofer might work on one side of your roof at a time so the underlayment doesn't have to be exposed to rain and sun while waiting on the new shingles.
For more information about shingle replacement, contact a roofing service in your area.