Emergency roof tarping is the temporary covering of a damaged section of roof with heavy-duty tarp that is fastened in a way that sheds water. It’s meant to protect the house for days or weeks, not months, until the roof can be repaired properly.
When a tarp is the right call
Tarping makes sense when the damage is too big or the weather too wet for a proper repair right now. That covers a lot of ground: a branch has opened a hole, wind has stripped a patch of shingles, a section of flashing has torn away, or a long-running leak has finally let go in a downpour.
It’s less useful for small, easy-to-reach leaks where a roofer can patch the spot in an hour; in that case the faster route is a same-day roof leak repair. A good roofer will tell you honestly which of the two your roof needs.
What a proper tarp installation looks like
The difference between a tarp that works and one that fails in the next gust is almost entirely in the details:
- The roofer looks at the damage and clears debrisSharp edges, broken decking and loose material get removed or covered first so they don’t tear the tarp.
- The tarp extends well beyond the damageA common rule is to carry it over the ridge and well past the damaged area, so water runs over the tarp rather than under it. Overlaps follow the direction water flows.
- It’s fastened to the roof, not just laid on itWood battens or furring strips sandwich the edge of the tarp so the fastener load is spread out. Tarp pulled tight under a single nail will tear at that nail.
- The edges are weighted or secured against windLoose corners flap, and flapping is what rips a tarp apart. Walnut Creek’s winter storms are not forgiving of loose edges.
- The roofer photographs the finished jobThose photos matter for any insurance claim and for the permanent repair that follows.
Tarp problems to watch for
- Tarp simply weighted with sandbags or bricks and no fasteners
- Thin, lightweight tarp that will degrade in the sun within weeks
- Tarp that stops at the damaged spot instead of running past it
- Nails driven straight through the tarp into the roof with nothing to spread the load
- No photos or written note of what was covered and why
How long can a tarp stay up?
Treat it as short-term protection. Sun, wind and foot traffic wear a tarp out, and water can get trapped or pool in the folds. Many homeowners plan the permanent repair within a few weeks, sooner if more storms are coming. If your repair is delayed by an insurance claim or materials, ask the roofer to check the tarp periodically rather than leaving it untouched through a rainy season.
What it costs to tarp a roof
Pricing varies with the size of the area, the pitch and height of the roof, how difficult access is and whether the call is after hours. There isn’t a single fair number to quote, and any figure you see online without knowing your roof is a guess. What you can do is ask the contractor for a written price that says what area will be covered and whether tarp removal and the follow-up repair are included or separate.
If the damage came from a sudden event such as a storm or a fallen tree, keep your tarping invoice and photos. Many homeowners policies expect you to take reasonable steps to prevent further damage, and the cost of doing so is often reimbursable. Check your own policy for the specifics.
Tarping isn’t the end of the story
If you’re waiting for a roofer, a plan for the hours in between is on the Walnut Knolls page, and what to do about wet interiors once the roof is covered is on the Rancho Paraiso page.
The tarp buys time. The permanent fix depends on what failed: decking, flashing, shingles or something else. If you aren’t sure where the leak started, our overview of roof leak repair in Walnut Creek explains how the diagnosis and the repair normally unfold, and storm damage roof repair covers the repairs that tend to follow a big weather event.
Roof tarping questions
Can you put a tarp on a roof in the rain?
Often yes, but a roofer may decline if there’s lightning, very high wind or if conditions make the roof unsafe to walk. Safety comes first, and a wet roof is a slippery one.
Can I tarp the roof myself?
It’s strongly discouraged. Getting onto a pitched roof, especially a wet one, is a leading cause of serious falls. A tarp that is not fastened correctly can also make the damage worse.
Will a tarp damage my shingles?
A well-installed tarp, secured with battens and removed carefully, should not do lasting harm. Poorly installed ones that are nailed through the shingles repeatedly can leave holes that need repair.
Does tarping count as the repair for insurance purposes?
Usually it is treated as an emergency mitigation measure, with the permanent repair as a separate item. Ask your insurer how it handles each, and keep the paperwork for both.
Related services
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