Can You Replace a Roof in Cold Weather?
Yes, you can replace a roof in winter, and approximately 15% of residential re-roofs in the US happen during December through February. However, cold-weather installation comes with specific considerations that affect both installation quality and long-term performance. The Asphalt Roofing Manufacturers Association recommends installation temperatures above 40 degrees Fahrenheit for optimal sealant activation.
Challenges of Winter Roof Replacement
- Sealant strips don't activate: Asphalt shingles have thermally activated adhesive strips that bond each shingle to the one below. Below 40 degrees, these strips may not seal until spring warmth. Until they seal, shingles rely solely on nails for wind resistance.
- Shingles become brittle: Cold asphalt shingles are more likely to crack when bent during installation. Experienced crews hand-seal and handle shingles carefully in cold weather.
- Shorter work days: Winter daylight is limited, stretching a 2-day job to 3 days.
- Weather delays: Snow, ice, and freezing rain make roofs unsafe to work on. Winter projects have a 25-35% higher chance of weather delays.
- Crew safety: Icy surfaces increase fall risk, requiring additional safety equipment and slower work pace.
Advantages of Winter Replacement
- Lower prices: Many contractors offer 5-15% winter discounts to keep crews busy during the slow season. This can save $500-$1,500 on a typical job.
- Faster scheduling: Availability that is 4-6 weeks out in summer may be 1-2 weeks in winter.
- Prevent active damage: If your roof is leaking, waiting until spring means months of water damage. The cost of water damage repair often exceeds the cost of winter installation trade-offs.
- Insurance deadlines: If a fall storm damaged your roof and your claim has a deadline, winter installation may be necessary.
Best Practices for Winter Installation
- Hand-seal every shingle: Apply roofing cement under each shingle tab to compensate for inactive sealant strips.
- Store materials in a warm location: Keeping shingles above 40 degrees before installation reduces brittleness.
- Watch the forecast: Schedule installation during dry windows above 30 degrees if possible.
- Use synthetic underlayment: Synthetic underlayment performs better than felt paper in cold and wet conditions.
- Choose an experienced contractor: Cold-weather installation requires specific techniques. Ask about their winter experience.
When to Wait for Spring
If your roof is functional (not actively leaking), temperatures in your area regularly drop below 20 degrees, and you have no insurance deadline, waiting for optimal weather is the safer choice. Spring installation ensures proper sealant activation and reduces the risk of material damage during installation.
Bottom line: Winter installation is safe and effective when done by an experienced crew, but it is not ideal. If you have an emergency or a deadline, go for it. If you can wait, fall or spring will give you a better installation. Either way, get your price now so you can plan ahead.
What would your roof cost?
Enter your address. Our satellite does the rest in 30 seconds.