How to repair your flat garage roof will depend on what it’s made from. Lots of flat garage roofs are made from EDPM rubber, asphalt or felt. We’ll explain how to carry out repairs on your garage roof here. EDPM rubber flat roof repair EDPM rubber is an excellent choice for a flat garage roof and should need little maintenance. But if you do need to repair it, there are a few easy fixes. If it’s a small crack or tear, apply some lap sealant to the area, but don’t use too much. If you go for a more professional repair later, the sealant will need to be scraped off, so if there’s too much it might cost you more in labour. If you need to repair the flashing, buy some malleable flashing tape so you can form it into the right shape. Clean and dry the area that needs repairing, then apply an EDPM primer. When that’s touch dry, stick the patch of flashing tape down from the centre outwards with a roller. Repairing an asphalt flat garage roof Asphalt is also very hard-wearing, and when it does need fixing, the fixes often last a long time. So if you do get cracks or blisters, you can use a paint-on fix from a tin as a temporary repair. When it’s time for a more permanent fix, you can add a small patch of torched-on roofing felt or use a liquid system, but the high-quality ones are often only available to trade customers. How to repair a felt flat garage roof Felt can be repaired in a similar way to asphalt flat garage roofs. For small cracks or a temporary fix, try a paint-on treatment from a tin. But for something more permanent, use a patch of torched-on roofing felt or a liquid system. If these don’t stick, unfortunately it means it’s time for a new felt garage roof. If you do need a new flat garage roof, leave it to the professionals who will ensure that your new roof will last for years.