The short answer
Assess the Risk First
Before you grab a tarp, look at the roof from the ground. Check for power lines, steep slopes, or visible sagging. If the roof is wet or the wind is strong, do not go up. A fall can cause serious injury, and a tarp won't help if you end up in the emergency room.
Also consider what is above the damaged area. If there are skylights, vents, or chimneys, you need extra care. Coastal storms can bring heavy rain and wind suddenly, so keep an eye on the sky. When in doubt, wait for conditions to improve or let the pros handle it.
- Check for downed power lines before approaching the house
- Look for slippery moss or algae on the roof surface
- See if shingles are already lifting or missing
- Note any nearby trees that could drop branches
- Confirm you have a stable ladder and a helper nearby
Gather the Right Materials
You need a tarp large enough to cover the damaged area with at least two feet of overlap on each side. A blue polyethylene tarp works well for temporary protection. Also gather lumber strips, such as 2x4s, to hold the tarp edges down. Use roofing nails or screws with washers to secure them.
Have a hammer, utility knife, and work gloves ready. A chalk line can help you cut the tarp to size. If you have a ridge vent or other roof features, plan how to work around them. Keep all tools in a bucket so nothing slides off the roof.
- Heavy-duty tarp, at least 6 mil thick
- 2x4 lumber strips cut to length
- Roofing nails with washers or screws
- Hammer and utility knife
- Work gloves and safety glasses
- A helper to hold the ladder steady
Secure the Tarp Properly
Spread the tarp over the damaged area, smoothing out wrinkles. Start at the lower edge of the roof, so water runs over the tarp and not under it. Lay the lumber strips along the tarp edges, then nail them through the tarp into the roof deck. Space the nails every 12 to 18 inches.
For extra hold, place a second row of lumber on top of the tarp at the peak or along the sides. Avoid nailing into valleys or flashing, as that can cause leaks. If the tarp is too large, fold it under rather than cutting, so you can adjust it later. Check the tarp after each heavy rain to make sure it stays put.
Stay Safe on the Ladder
Set the ladder on firm, level ground. Extend it at least three feet above the roof edge. Have a helper hold the base while you climb. Wear rubber-soled shoes for grip. Never overreach; move the ladder instead of stretching.
If you feel dizzy or the wind picks up, come down immediately. A tarp is not worth a fall. In storm conditions, even a small gust can knock you off balance. If you cannot do the job safely, wait for the storm to pass or call local water damage pros to handle it.
When to Call the Pros
If the damaged area is large, the roof is steep, or you have any doubt about your safety, call the pros. They have the equipment and experience to tarp a roof securely, even in tricky situations. They also know how to avoid further damage to shingles and flashing.
A tarp is only a temporary fix. Once the storm passes, you need a proper repair. Water that gets inside can cause mold and rot. If you have roof leak water damage, a professional inspection can help you understand the full scope. Check your policy to see what is covered. Policies vary, and your insurer decides what is covered.
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Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (386) 272-5697Frequently asked questions
Can I tarp a roof in heavy rain?
No. Heavy rain makes the roof slippery and dangerous. Wait for the rain to stop or slow down. If water is coming in, move valuables and use buckets. The pros can tarp after the storm passes. Your safety comes first.
How long can a tarp stay on my roof?
A tarp is temporary, usually for a few days to a few weeks. Over time, wind and sun can weaken it. Check it after storms and re-secure loose edges. For long-term protection, arrange a permanent repair as soon as possible.
What if the tarp blows off during a storm?
Do not go out in the storm to fix it. Wait for calm conditions. If water enters, protect your belongings and dry the area. After the storm, re-tarp or call the pros. Also, check your policy for coverage. Policies vary, and your insurer decides what is covered.