Consider an Overlay An overlay is a quick and budget-friendly option for roof replacement whereby a professional roofer installs new shingles over existing ones. This appeals to many people since it gives your roof a facelift while costing far less than a full replacement, as it requires fewer materials and labor.

If any are worn, curled, slipped or missing tiles, it's a sign your roof may need replacing. At the very least you should look to repair broken and missing tiles as soon as possible. Also, check the ridge of your roof. This should be completely straight.