How to Repair a Damaged Butterfly Roof

What You'll Need
Weather proof paper membrane
Roofing felt

Repairing a damaged butterfly roof may be a little bit more difficult than a regular roof may be. A butterfly roof is angled and looks as though there are two wings that come out instead of a typical roof. Because of the angle and unique design, you can still repair a damaged one, but you may have to do it with a little more care. Here are a few tools that you will need as well as some steps that can help you through the process.

Step 1 - Accessing the Damage

When repairing a roof, you have to determine how much damage has actually been done and the nature of it. If you have just a few shingles that need to be replaced, it won't be as much work as having to deal with mold underneath or the entire roof falling in. Begin by going up to the roof as long as it is safe and deciding the nature and intensity of the damage done.

Step 2 - Shingle Replacement

If a few shingles need to be replaced, you can go to the roof using a ladder and use a hammer to remove the roofing nails and pry off the shingles one by one. Then check to make sure no damage has been done to the actual roof. Then, find shingles that match your existing ones and cut them to fit. You will need to lay them out to make sure that they fit into where they should and then starting from the bottom and working your way up, nail them in place. Make sure to use at least 4 nails on each shingle so that it is secure. You may want to consider using a nail gun to be extra careful.

Step 3 - Mold or Water Damage

If it is more than just a few shingles and the underside of the roof is damaged from mold or water, the project is gong to take a little longer and will likely cost more. You can remove the shingles like you did in the step above but you will also want to work on the wood that is under them. Check out each section to see which needs to be replaced. When working with a butterfly roof especially, you need to make sure that the connection in the middle of the two 'wings' or roofs is stable. Be sure to focus on this area to ensure that there isn't water or mold damage. Replace any of the wood that needs to be laid down and nail the waterproof membrane and roofing felt to it. Then, you will be able to re-shingle as you did in the above step. Even with a butterfly roof, you can start at the bottom and work your way up. Just be sure that you work patiently and slowly so the top ends match up and look sleek.