Best Roofing Materials for Cold and Snowy Climates

The Three Winter Threats to Your Roof

Cold climates subject roofing materials to three destructive forces that barely exist in warmer regions. Understanding these forces explains why certain materials excel and others fail prematurely in northern environments.

Snow load. Fresh snow weighs 3 to 5 pounds per cubic foot, but packed or wet snow can weigh 20 to 30 pounds per cubic foot. On a roof that accumulates 2 to 4 feet of snow during a major storm, the total load can reach 30 to 60 pounds per square foot. Residential roofs in snow country are engineered for these loads, but any material that traps and holds snow rather than shedding it increases the risk of structural stress.

Ice dams. Ice dams form when heat escaping from the interior melts snow on the upper roof, which then refreezes at the cold eave overhang. The resulting ice ridge traps meltwater behind it, which backs up under shingles and other lap-type roofing, causing leaks. Ice dams are the single most common cause of winter roof damage in northern climates.

Freeze-thaw cycling. Water that penetrates any small crack or gap in a roofing material expands by 9 percent when it freezes, widening the crack. Over hundreds of freeze-thaw cycles per winter, this expansion breaks down porous or cracked materials from the inside out. The most durable cold climate materials are those that resist moisture absorption entirely.

Metal Roofing: The Top Choice

Standing seam metal roofing addresses all three winter threats more effectively than any other widely available material. Snow slides off the smooth, slippery surface rather than accumulating in dangerous quantities. The continuous seam design eliminates the lap joints where ice dam water backs up under overlapping materials. And metal is completely impervious to moisture absorption, making freeze-thaw cycling irrelevant to its structural integrity.

In regions with heavy snowfall like upstate New York, northern New England, Minnesota, and the mountain West, metal roofing has become the preferred choice for homeowners who have experienced ice dam damage on previous shingle roofs. The smooth surface combined with a properly installed ice and water shield membrane at the eaves creates a belt-and-suspenders approach that virtually eliminates ice dam leaks.

Snow guards are an important accessory for metal roofs in cold climates. These small brackets or rail systems prevent accumulated snow from releasing in a single dangerous avalanche, instead allowing it to melt and slide off gradually. Snow guards are particularly important above entryways, walkways, and lower roof sections where a sudden snow release could cause injury or damage.

Metal roofing in cold climates costs $10.00 to $25.00 per square foot installed, with standing seam steel being the most common choice. The lifespan of 40 to 70 years means many northern homeowners install one metal roof and never need another replacement, even in the harshest winter conditions.

Natural Slate: The Premium Cold Climate Material

Natural slate has a centuries-long proven track record in the coldest climates on earth. Historic slate roofs in Vermont, Quebec, Scotland, and Scandinavia have endured 100 to 200+ years of severe winters without material failure. Properly graded slate from reputable quarries is essentially impervious to water absorption, which means freeze-thaw cycling has no effect on the tile itself.

The critical factor with slate in cold climates is the grade of stone. "Hard" or "unfading" grades from Vermont and Pennsylvania quarries have water absorption rates below 0.25 percent, making them virtually immune to frost damage. "Soft" or "fading" grades from some domestic and imported quarries have higher absorption rates and may deteriorate after 50 to 75 years in severe freeze-thaw environments. Always specify the grade and quarry source when purchasing slate for a cold climate installation.

Slate does not shed snow as effectively as metal because its surface is rougher and the individual tile overlaps create friction. However, slate roofs are designed for steep pitches (typically 6:12 to 12:12) that encourage natural snow shedding through gravity alone. The steep pitch also reduces ice dam risk by allowing meltwater to drain more rapidly before it can refreeze at the eave.

At $15.00 to $35.00 per square foot installed, slate is the premium choice. For historic homes, architecturally significant properties, or homeowners who want a roof that outlasts the mortgage and the next owner's mortgage too, natural slate in a cold climate is unmatched.

Architectural Asphalt Shingles: The Budget Choice

Architectural asphalt shingles are the most common roofing material in cold climates because they offer acceptable winter performance at the lowest installed cost. Modern architectural shingles use SBS (styrene-butadiene-styrene) modified asphalt that remains flexible in subzero temperatures, unlike standard oxidized asphalt that can become brittle and crack.

The main vulnerability of asphalt in cold climates is ice dam susceptibility. Shingles are an overlapping lap system, and when ice dam water backs up under the shingle courses, it finds its way to the roof deck. The solution is not a different shingle but rather a proper ice and water shield membrane installed at all eaves, valleys, and penetrations. Building codes in cold climate zones (IECC Climate Zones 5 through 8) require ice and water shield extending at least 24 inches past the interior wall line, and best practice is 36 inches or more.

Asphalt shingles in cold climates typically last 20 to 30 years, which is somewhat shorter than the same product in moderate climates. The combination of freeze-thaw cycling, ice dam stress, and snow load wears out the material faster. Budget for replacement every 25 years rather than the 30+ years that manufacturers' warranties suggest.

At $5.00 to $7.50 per square foot installed, asphalt remains the most affordable option for homeowners who need a functional roof in cold climates without the investment required for metal or slate.

Materials That Struggle in Cold Climates

Clay and concrete tile perform poorly in severe cold because they are porous enough to absorb small amounts of moisture, which then freezes and causes spalling (surface flaking). While tile is the premier hot climate material, it is rarely specified in regions with harsh winters. Some frost-resistant tile products exist, but they are more expensive and less widely available than standard tile.

Wood shake and wood shingles are marginal in cold climates. The moisture from snow and ice keeps wood saturated for months at a time, promoting decay, moss growth, and accelerated aging. In regions where the ground is snow-covered from November through March, wood roofing may never fully dry between storms, cutting its effective lifespan by 30 to 50 percent compared to the same product in a drier climate.

Flat membrane roofing (TPO, EPDM, PVC) handles cold and snow adequately from a material perspective, but flat roofs in heavy snow regions present structural concerns. Snow loads on flat roofs are higher than on sloped roofs because the snow does not shed. If your home has a flat roof section in a snowy climate, ensure the structure is engineered for your area's snow load requirements and keep drains and scuppers clear to prevent ponding.

Installation Considerations for Cold Climates

The quality of the underlayment and flashing matters more in cold climates than in any other environment. Synthetic underlayment resists moisture better than traditional felt paper and does not wrinkle or tear during cold weather installation. Ice and water shield membrane is the most critical accessory in cold climate roofing and should be installed generously at all eaves, valleys, sidewall transitions, and around every penetration.

Proper attic ventilation is essential to preventing ice dams regardless of the roofing material. A cold ventilated attic keeps the roof deck at or near the outside air temperature, preventing the uneven snowmelt that causes ice dam formation. Ridge vents paired with soffit vents provide continuous airflow that keeps the roof deck cold. If your attic has inadequate ventilation, no roofing material can fully prevent ice dams.

Winter installation is possible but not ideal for most materials. Asphalt shingles installed below 40 degrees may not seal properly until warmer weather arrives. Metal panels can be installed year-round because they do not rely on thermal sealing. Slate installation requires care to avoid cracking tiles in extreme cold. When possible, schedule roofing projects for late spring through early fall in cold climates.