The short answer
Assess the Damage Safely
Before you climb onto the roof, check the area from the ground. Look for loose shingles, exposed underlayment, or visible holes. If the roof is wet, steep, or near power lines, do not go up. Your safety comes first, and a fall can cause serious injury.
Inspect the attic from inside for water stains, dripping, or sagging ceiling tiles. This tells you where the leak is coming through. Mark the spot with a bucket to catch water. If you see dark streaks or mold growth, avoid touching it and mention it to the pros when they work on your home.
Choose the Right Tarp
Use a heavy-duty polyethylene tarp, at least 6 mil thick. The tarp should overlap the damaged area by at least 2 feet on all sides. You can buy tarps at hardware stores or online. Buy one larger than you think you need, because trimming is easier than stretching.
For small holes, a tarp with grommets works well. For larger tears, a smooth sheet without grommets may seal better. Have sandbags or heavy boards on hand to weigh down the edges. Do not use nails if you can avoid them, as they create more holes in the roof.
Secure the Tarp Properly
Lay the tarp flat over the damaged section, with the edges extending beyond the ridge or walls. Fold the edges under to create a smooth surface. Use roofing nails with washers, placed every 12 to 18 inches along the edges. Drive them into solid wood, not just the shingles.
For a temporary fix, you can also tie ropes to the grommets and anchor them to heavy objects like a chimney or tree. Do not stretch the tarp too tight, as wind can lift it. If you cannot secure it firmly, do not risk it; the pros can handle it safely.
- Overlap the damaged area by at least 2 feet
- Use roofing nails with washers, not staples
- Place nails every 12 to 18 inches along edges
- Avoid walking on wet or steep roof sections
- Weigh down edges with sandbags or boards
- Check the tarp after heavy rain or wind
Temporary vs. Permanent Fix
A tarp is a stopgap, not a repair. It keeps rain out for a few days, but the underlying damage remains. You still need a roofer to replace shingles, fix flashing, or repair the decking. Do not leave the tarp on for weeks, as it can trap moisture and cause rot.
If the damage is minor, a tarp may last until your roofer can schedule the repair. For large holes or structural issues, the tarp may not hold. In that case, the pros can install a more secure temporary cover. They also dry out the attic and walls to prevent mold.
Policies vary, and your insurer decides what is covered. Check your homeowners policy to see if tarping or roof repair is included. Take photos of the damage before you cover it, as that helps with any claim you file.
When to Call the Pros
Call local water damage pros if the leak is large, the roof is high, or you cannot safely reach the area. They have ladders, safety gear, and experience working on damaged roofs. They can also assess the interior water damage and start drying affected rooms.
If you live in Arizona, you know the summer storm season brings sudden downpours. After a big storm, check your roof for missing shingles or tears. If you see water stains on the ceiling, act quickly. The pros can tarp the roof and dry the interior to limit secondary damage.
For water damage inside your home, the pros use fans and dehumidifiers to dry walls, floors, and insulation. They also check for hidden moisture that could lead to mold. Do not wait, as mold can start growing within a day or two.
- Large tears or holes you cannot cover
- Roof is steep, wet, or two stories high
- You see water stains on ceilings or walls
- Attic insulation is soaked or sagging
- You are unsure about the tarp placement
- You need help drying the interior spaces
Need help right now?
Phones are answered 24/7 for Scottsdale and nearby communities.
Call Now (623) 624-8391Frequently asked questions
Can I leave a tarp on my roof for a month?
Leaving a tarp on for a month is risky. It can shift in wind, trap moisture, and cause rot. Most tarps are meant for a few days to a couple weeks. Schedule a permanent repair as soon as possible, or call the pros to secure a more durable cover.
How do I stop a leak until the tarp is on?
Place a bucket under the drip and remove wet furniture or rugs. You can also cut a small hole in the ceiling to let water drain into a bucket, but only if the ceiling is sagging. Keep the area dry with towels, and open windows for ventilation if safe.
Will my insurance pay for tarping?
Insurance policies differ. Some cover emergency tarping as part of a covered loss, while others do not. Check your policy and talk to your agent. Take photos of the damage before tarping. Policies vary, and your insurer decides what is covered.