Asphalt shingles can be installed in freezing temperatures, but the process changes. Below roughly 40 degrees Fahrenheit, the factory sealant strips on the back of each shingle won't bond on their own, so a crew has to hand-seal every tab with roofing cement and handle the material more carefully to avoid cracking. It's doable, it's just slower and more labor-intensive.
Why Does Cold Weather Affect Asphalt Shingle Installation?
Every asphalt shingle has a strip of thermoplastic adhesive built into it. In warm weather, sun exposure softens that strip enough for the shingle above it to press down and bond, locking the whole roof together as one wind-resistant surface. In a western North Dakota winter, that sun warmth isn't reliable, so the strips stay stiff and don't seal properly on their own.
Cold also makes the shingles themselves more brittle. Asphalt shingles that bend easily in July can crack if you fold or force them in January, especially around valleys, ridges, and anywhere a shingle has to wrap a corner. A crew working in freezing weather has to slow down, keep bundles warm until they're used, and avoid overworking the material.
How Do Roofers Install Shingles When It's Below Freezing?
The fix is hand-sealing: instead of relying on the factory adhesive strip, the crew applies a dab of compatible roofing cement under each tab and presses it down manually. Done correctly, this gives the same holding power as a summer installation, it just takes more time per shingle since nothing is sealing itself.
A few other adjustments come into play on a cold-weather job:
- Nailing is done with extra attention to placement, since cold asphalt is less forgiving of a nail driven at the wrong angle or depth.
- Shingles are kept warm (in a heated trailer or staged in small batches) rather than left stacked outside in sub-freezing air before they're laid.
- Foot traffic on the roof is minimized, because cold shingles scuff and crack more easily under boots than shingles installed in warm weather.
- Work is scheduled around the warmest part of the day when possible, even if that's still well below the ideal install temperature.
This is standard practice for asphalt shingle roofing jobs that can't wait for spring, whether that's a full roof replacement on a home that's already lost its weather seal or a smaller repair tying new shingles into an existing field.
Does Cold-Weather Installation Mean a Lower-Quality Roof?
A cold-weather asphalt roof holds up fine when it's installed by a crew that knows to hand-seal and handle the material correctly. The risk isn't the temperature, it's skipping the extra steps that cold weather requires. A rushed cold install with no hand-sealing is far more likely to lose shingles in the first big wind event than one where the crew took the time to do it right.
That's also why winter is not the time to let a damaged roof sit untouched. Missing shingles, a torn ridge cap, or an opening from wind or hail lets snowmelt and moisture into the roof deck, and that damage compounds every week it's exposed. If a roof needs attention now, an emergency roof repair in freezing weather, done with proper hand-sealing, is almost always the better call than waiting months for warmer air.
If you're not sure whether a roof needs full replacement or a targeted repair before winter is over, a professional roof inspection will tell you what's actually going on under the surface. B&C Northern Construction works on homes across Williston, Watford City, Tioga, Dickinson, Minot, and the rest of our western North Dakota service area year-round, and we size up every job for the conditions it's actually built in. More on how we approach roofing and other exterior work is on our blog.
FAQ
Is there a cutoff temperature where shingles just can't be installed? There's no hard cutoff where installation becomes impossible, but very cold, windy days slow the work down and require more hand-sealing. A qualified crew will tell you honestly if conditions on a given day are workable or if it makes sense to wait a day for milder weather.
Will a roof installed in winter need extra maintenance later? Not if it was hand-sealed correctly during installation. Once spring sun warms the roof, any remaining factory strips will finish sealing on their own, on top of the hand-sealing already done.
Can I just wait until spring to replace a damaged roof? Sometimes, if the damage is minor and well-covered. But an active leak, missing shingles, or storm damage exposed to months of snow and freeze-thaw cycles usually gets worse, not better, while you wait. Contact us and we'll tell you straight whether your roof can hold until spring or needs attention now.