Short answer: it can be done. GAF recommends installing asphalt shingles at 40°F (4°C) or above and allows colder installs only with extra steps, such as hand-sealing each shingle. Below freezing the work gets harder, and below about 20°F most crews will not do it. If your roof is not leaking, waiting for milder weather is often the lower-risk choice.
If your roof is failing and the first snow is on the way, the question is fair: do you wait until spring, or call a roofer now? The answer depends on the temperature, the roofing material, and how urgent the problem is. This guide uses the shingle manufacturer’s own guidance and roofing contractors’ advice, and it does not promise any price or result.
Why Cold Weather Is a Problem for Asphalt Shingles
Asphalt shingles are designed to be flexible and to seal themselves down with heat. Cold weather works against both. According to GAF:
- Shingles lose flexibility below 40°F and may crack when they are bent, cut, or hit with a nail.
- The sealing strip needs warmth to activate. GAF says it needs “warmth, sun, and temperatures above 40°F” to bond. Until it does, shingles can lift in the wind.
- Nail guns behave differently. Cold air can lower compressor pressure, and a GAF writer notes that humidity in air lines can freeze. Under-driven nails can puncture the shingle above, and over-driven nails can cut into the shingle below.
Temperature Guide: What the Sources Say
| Temperature | What to expect | Source |
|---|
| 40°F and above | The manufacturer’s recommended range for installing asphalt shingles. | GAF |
| Below 40°F | Shingles stiffen and may crack, and the sealing strip may not bond. Allowed only with cold-weather steps like hand-sealing. | GAF |
| Below 32°F | Uncomfortable for most roofers. In most cases a GAF writer advises waiting until it is above freezing. | RoofersCoffeeShop (GAF writer) |
| About 20 to 25°F | One contractor guide says experienced crews can work down to about this range with care. A GAF writer says below 20°F it is impossible for most roofers. | 4Feldco; RoofersCoffeeShop |
The numbers differ because the sources are different kinds of sources: one is a manufacturer, one is a manufacturer’s writer, and one is a contractor. The manufacturer’s 40°F line is the one tied to the warranty instructions, so use it as your reference.
What a Careful Cold-Weather Crew Does
- ✓ Clears snow, frost and ice, and confirms the roof deck is clean and dry before any shingle goes on. Shingles should never go on in rain, sleet or heavy frost.
- ✓ Hand-seals the shingles. GAF describes quarter-sized dabs of approved asphalt roofing cement under each shingle tab, then pressing the shingle into it. Too much cement can run down the face of the shingle or cause blistering.
- ✓ Stores shingles warm. GAF suggests keeping bundles at about 70°F (21°C) for at least 24 hours before installation and carrying only small amounts up to the roof at a time.
- ✓ Handles shingles gently. Throwing or dropping cold shingles can crack them.
- ✓ Works during the warmest hours and often in sections, so each section gets as much sun as possible.
- ✓ Checks nailing and air pressure often, and keeps tools warm and lubricated.
Ask this before you sign: “How will you follow the shingle manufacturer’s cold-weather instructions on my roof, and will that be in writing?” GAF states its warranty is not affected when all of its application instructions are followed, including cool-weather provisions such as hand-sealing. A roofer who cannot explain how they handle a cold-weather install is a reason to keep shopping.
Possible Upsides of a Winter Replacement
- Stopping a leak. A GAF writer notes that in some cases the seriousness of the roof problem outweighs the risk of doing the job in winter. Water inside the house can damage insulation, drywall and belongings.
- Easier scheduling. A contractor guide says winter is typically the slower season, so crews may be available sooner and pricing may be better. That is not guaranteed, and cold-weather steps add labor, so compare written estimates.
- A chance to fix ventilation and insulation. The same guide notes that a replacement is a good time to correct attic problems that contribute to ice dams. See our guide to ice dam roof damage.
Risks to Weigh
- Wind before the strips seal. If the self-seal strips have not bonded, shingles are more vulnerable to blow-offs, which is why hand-sealing matters.
- Moisture trapped under the roof. Snow or frost left on the deck can cause sealing failures that affect long-term performance.
- Slippery, slower, riskier work. Snow and ice make the slope dangerous, and a GAF writer notes that a discouraged cold-weather crew may be tempted to cut corners.
- Weather delays. Rain, sleet, snow and high winds all stop shingle work, so a job that normally takes 1 to 3 days can take longer.
Does the Material Matter?
Yes. A contractor guide says metal panels are less temperature-sensitive than asphalt shingles: they do not crack in the cold and do not need heat to seal. If you are choosing materials for a cold climate, read our guides to the best roofing materials for cold climates and metal roofing vs shingles.
Winter Replacement or Wait for Spring?
| Your situation | A reasonable next step |
|---|
| Active leak, water inside the house | Call a roofer now. Ask whether a temporary repair or a cold-weather install fits. See roof leak repair: DIY vs. pro. |
| Storm damage or an insurance claim | Document the damage and call your insurer first. See our roof insurance claim guide. |
| Old roof, no leaks, temperatures staying under 40°F | Get inspected and gather estimates now, and schedule the work for milder weather if it is safe to wait. See roof inspection cost. |
| Mild stretch of weather in your area | Ask roofers about their cold-weather process and choose one who can explain it. |
How to Prepare Your Home
- Clear the driveway and walkways so crews and trucks can reach the house.
- Check that attic insulation and ventilation are adequate.
- Remove wall-mounted items inside, and cover belongings in the attic. Hammering can vibrate the house.
- Get at least three written estimates. Our roofer hiring checklist lists what to check, and our roof replacement cost guide shows what drives the price.
Wondering how long the job takes once it starts? See our guide to how long it takes to replace a roof.
Looking for a Roofer in a Cold-Weather City?
BestRoofersIn lists local roofing contractors with the ratings shown on their Google listings. Call a few, ask how they handle cold-weather installs, and compare written estimates.
Denver Roofers
Minneapolis Roofers
Chicago Roofers
Frequently Asked Questions
Can you replace a roof in the winter?
Yes, in many cases. GAF’s official recommendation is to install asphalt shingles at 40°F (4°C) or above, but it allows installation below that when its cold-weather precautions are followed, including hand-sealing the shingles. Snow, frost and ice must be cleared and the roof deck must be dry before shingles go on.
What is the lowest temperature you can install shingles?
There is no single number. GAF says shingles can lose flexibility and may crack below 40°F. A GAF writer says roofing below freezing is uncomfortable for most roofers and below 20°F is impossible for most, and advises waiting until it is above freezing in most cases. A contractor guide says experienced crews can work down to roughly 20 to 25°F with extra care.
Will my warranty still count if the roof is installed in cold weather?
GAF states that its warranty is not affected if all of its application instructions are followed, including the cool-weather provisions such as hand sealing. Ask your roofer to confirm in writing how they will follow your shingle manufacturer’s cold-weather instructions.
Is winter roof replacement cheaper?
Possibly. One contractor guide says winter is typically the slower season, so scheduling can be faster and pricing may be better. That is not guaranteed, and cold-weather steps like hand-sealing add labor. Compare at least three written estimates, whatever the season.
Should I wait until spring to replace my roof?
If the roof is not leaking, waiting for milder weather is often the lower-risk choice. If water is getting in, a GAF writer notes that in some cases the seriousness of the roof problem outweighs the risk of doing the job in winter. A temporary repair may buy time, and a roofer can tell you which fits your roof.
Sources and method
Guidance below was read on October 11, 2026. It is general information, not a substitute for your roofer’s or shingle manufacturer’s instructions, and BestRoofersIn does not set prices or provide quotes.
- GAF: Cool weather roofing, must-know tips for installing shingles in cool temperatures (40°F recommendation, sealing strip, hand-sealing, storage at 70°F, nailing, warranty statement)
- RoofersCoffeeShop: The Benefits and Risks of Replacing a Roof in the Winter (written by a GAF writer, December 2017; crew, tool and temperature notes)
- 4Feldco: Can You Replace a Roof in the Winter? (contractor guide; 20 to 25°F range, scheduling, ice dams, metal panels, timeline)