When water is coming through your ceiling, you need two things: to stop the damage spreading right now, and to get a real repair scheduled. This guide covers the first part.
Everything below is a stopgap. A tarp, a strip of roofing tape, or a patch of tar buys you days or weeks — not months — and none of it addresses why the roof failed. But done properly, a temporary fix can be the difference between a drywall patch and a gutted ceiling.
Before anything else: never go on a roof during a storm, in high wind, or when there's ice, snow, or standing water on it. Most of what follows can be done from inside. If the only fix requires climbing up in bad conditions, that's the moment to call someone instead.
What You'll Need
Grab what you can. You won't need all of it.
For inside:
- Buckets, bins, or a trash can
- Old towels and a drop cloth or plastic sheeting
- A screwdriver or awl (for draining a bulging ceiling)
- A flashlight or headlamp
- Your phone, for photos
For outside or the attic:
- Heavy-duty poly tarp, rated at least 6 mil — sized to run well past the damage in every direction
- 2x4s or furring strips, plus screws, to anchor tarp edges
- Waterproof roofing tape (butyl or flashing tape)
- Roofing cement or roof sealant, plus a putty knife
- A scrap of plywood or a spare shingle for patching from below
- Work gloves
Take photos before you touch anything. Wide shots of the ceiling, the attic, and the roof if you can safely see it. If this turns into an insurance claim — and storm damage often does — documentation from before the temporary fix is worth far more than documentation after.
Step 1: Control the Water Inside
Do this first, always. It's the highest-value thing you can do and it carries no risk.
- Catch the drips. Buckets under active leaks, towels and plastic sheeting under the buckets. Swap containers before they overflow.
- Drain a bulging ceiling. If drywall is sagging with trapped water, don't leave it. Put a bucket underneath, then carefully puncture a small hole at the lowest point of the bulge with a screwdriver and let it drain. It feels wrong. Do it anyway — a controlled drain beats a ceiling collapsing at 3am, and the repair is a patch instead of a full sheet.
- Move what matters. Electronics, furniture, rugs, documents, anything with sentimental value.
- Kill the power to the area at the breaker if water is anywhere near light fixtures, ceiling fans, or outlets. Water and wiring in the same cavity is the one part of this that can actually hurt you.
Step 2: Find Where the Water Is Actually Coming In
This is the step most guides skip, and it's why so many temporary patches fail.
Water almost never enters directly above where it drips. It comes through the roof, lands on the decking, then travels — along the underside of the sheathing, down a rafter, across the top of a ceiling joist — until it hits a low point and falls. Ten or fifteen feet of travel is completely normal.
If you can get into the attic safely, take a flashlight and look for:
- Wet or discolored sheathing, and follow the stain uphill to its highest point
- Water tracking along a rafter — follow it up
- Daylight coming through the deck
- Matted or compressed insulation, which shows where water has been running
- Rusted nails or nail tips with water beading on them
The common entry points, roughly in order: flashing around chimneys, vents, and skylights; valleys where two roof planes meet; missing or lifted shingles; nail pops; and the eaves during ice dam season.
Mark the spot from inside the attic — a piece of tape on the rafter, or a nail pushed up through the deck — so whoever repairs it knows exactly where to look.
Step 3: Tarp the Area (The Most Effective Temporary Fix)
If the damage is on an accessible, low-slope, dry roof section and the weather has passed, a tarp is the best temporary fix there is.
- Size the tarp so it extends at least four feet past the damage in every direction.
- Run the top edge over the ridge if you can. Water tracking under the top edge of a tarp is the number one reason tarps fail.
- Anchor the edges by wrapping them around 2x4s and screwing the boards down, or by securing them with sandbags on a flat roof. Don't just weight the corners — wind gets under a loose tarp and turns it into a sail.
- Keep the tarp taut. Sagging collects water, and standing water finds its way through.
If reaching the damage means a steep pitch, a wet surface, or a ladder on soft ground — stop. This is what emergency roofing service exists for.
Step 4: Tape, Seal, or Patch Small Damage
For a small, reachable, dry area:
- Roofing tape works on cracks, small holes, and split flashing. Clean and dry the surface first — it won't bond to wet or dirty material.
- Roof sealant or roofing cement applied with a putty knife handles gaps around vents and flashing. Work it in, don't just smear it over the top.
- From the attic, if you can reach the entry point, press roofing tar over the spot and set a shingle scrap or piece of plywood into it. It won't be pretty and it won't last, but it slows the flow considerably.
Note that patching from below is genuinely a stopgap — you're plugging the hole from the wrong side, and water will keep sitting in the assembly.
Step 5: Cover Exposed Decking
If shingles are gone and you can see bare decking, get it covered. Exposed sheathing soaks up water fast, and wet OSB swells and delaminates permanently — turning what could have been a shingle repair into a decking replacement.
Plastic sheeting or a tarp over the exposed area, anchored the same way, until a roofer gets there.
What Not to Do
- Don't get on a wet, steep, icy, or storm-damaged roof. Falls from roofs are one of the most common serious home-repair injuries. No leak is worth it.
- Don't chip or hammer at an ice dam. You'll take the shingles off with the ice and turn a leak into a hole.
- Don't use duct tape, spray foam, or interior caulk on the roof. They fail within days and leave residue that makes the real repair harder.
- Don't assume it's fixed because the dripping stopped. Rain stops. Leaks don't fix themselves.
- Don't let a "storm chaser" who knocks on your door after a hailstorm start work. Verify licensing and insurance, and get it in writing.
Winter Leaks Are Different: Ice Dams
In Michigan, a large share of roof leaks between December and March aren't roof failures at all — they're ice dams, and almost none of the advice above applies.
Here's what happens: heat escaping your attic melts the snow on the upper roof. That meltwater runs down and refreezes when it reaches the cold overhang past your exterior wall. Ice builds into a ridge at the eave, and the water backing up behind it sits there, working under the shingles until it finds a way in.
What to do:
- Rake the snow off the lower three or four feet of roof with a roof rake, from the ground. Removing the snow removes the water supply.
- Run a calcium chloride ice melt sock perpendicular across the dam to channel a drainage path through it. Sodium chloride (rock salt) will damage shingles, gutters, and plants — use calcium chloride specifically.
- Add attic insulation and ventilation once winter is over. That's the actual fix. Ice dams are an attic problem that shows up on the roof.
What not to do: don't chip at it, don't use a hatchet, and don't pressure wash it. And be cautious with heat cables — they can manage a dam but they don't prevent one, and improperly installed ones are a fire risk.
If you're getting ice dam leaks every winter, no amount of roof work will solve it. The heat loss is the problem. A well-detailed roof edge with a gutter apron limits the damage, but it won't stop the dam forming.
How Long Will a Temporary Fix Actually Last?
Honest numbers, in Michigan conditions:
| Fix | Realistic lifespan |
|---|---|
| Properly anchored tarp | 30–90 days before UV and wind degrade it |
| Roofing tape | A few weeks; less in freeze-thaw |
| Roof sealant / cement | 1–6 months, depending on exposure |
| Interior tar patch | Days to weeks — it's a flow-reducer, not a seal |
Every one of these degrades faster in a Michigan winter. Freeze-thaw cycling breaks adhesive bonds, and wind loads on a tarp are brutal.
The real cost of leaving a temporary fix in place isn't the patch failing — it's the water that's already in your roof assembly. Wet decking, wet insulation, and wet framing don't dry out on their own in a sealed attic. Mold gets established in 24 to 48 hours. Insulation that's been wet loses most of its R-value permanently. Decking that stays wet delaminates and has to be replaced.
A leak that would have been a $400 repair in week one is routinely a $3,000 repair by month three.
When It's a Small Leak, Just Fix It Properly
If the damage really is minor — a few lifted shingles, one cracked boot around a plumbing vent, a small section of failed flashing — skip the temporary stage. A proper small roof leak repair usually runs a few hundred dollars, takes a couple of hours, and comes with a warranty. Tarping it and waiting costs more in the end.
Call for a real repair straight away if you see any of these:
- Multiple leaks at once (usually means the roof system is failing, not a single spot)
- Sagging decking or a spongy feel underfoot
- Visible mold or a musty smell in the attic
- Water near electrical
- A roof over 20 years old — at that point, compare against roof replacement cost
- Storm or hail damage you may need to claim on insurance
Frequently Asked Questions
What's the fastest temporary fix for a leaking roof?
Buckets and containment inside, then a tarp outside once conditions are safe. Containment alone prevents most of the expensive damage, and it carries no risk.
Can I fix a roof leak from the inside?
You can slow one. Roofing tar and a patch pressed over the entry point from the attic will reduce the flow, but water is still getting into the assembly and sitting there. Treat it as buying time.
Will roofing tape work in the rain?
No. Roofing tape needs a clean, dry surface to bond. Applied wet, it lifts within hours. Wait for a dry window, or tarp instead.
Does homeowners insurance cover a roof leak?
Typically yes for sudden, accidental damage — storm, wind, hail, a fallen branch. Typically no for wear, age, or deferred maintenance. Document everything with photos before you patch, keep receipts for emergency materials, and report it promptly. Most policies require you to take reasonable steps to prevent further damage, so a temporary fix generally helps your claim rather than hurting it.
How much does emergency roof repair cost?
Emergency tarping typically runs a few hundred dollars. The permanent repair depends entirely on what's underneath — a single flashing repair is modest; decking replacement across a wet section is not. A free inspection will tell you which you're dealing with.
My ceiling is bulging with water. What do I do?
Bucket underneath, small hole at the lowest point, let it drain in a controlled way. Don't wait for it to give out on its own.
Get It Fixed for Good
Hect Home Improvement has been repairing roof leaks for Flint-area homeowners for more than 25 years. We'll find the actual source — not just the spot where it's dripping — and repair it properly, backed by our lifetime labor and materials warranty. We're licensed, insured, and available 24 hours for emergencies.
Call (810) 243-3303 for a free estimate.