We in Wisconsin have seen plenty of snow and ice in the many years we have been in business. We know how important planning is for building a home in a snow-prone region. If you are thinking about building a new, or renovating, a home, here are some considerations, Be sure to work with a contractor, who knows how to deal with winters.
Structural Design
- Snow Load Capacity: The roof and structural elements must be designed to support the additional weight of heavy snow and ice.
- Use snow load maps and local building codes to determine the required strength.
- Consult a structural engineer for accurate load calculations.
- Roof Pitch and Shape:
- A steep roof pitch (at least 30–45 degrees) helps snow slide off easily.
- Avoid flat or low-pitched roofs where snow can accumulate.
- Gable roofs and shed roofs are often preferred in snowy regions.
Roofing Materials
- Durable Roofing: Use materials like metal, asphalt shingles, or synthetic composites, which are strong and resistant to freeze-thaw cycles.
- Ice Dams Prevention: Install proper ventilation and insulation to prevent ice dams, which form when heat escapes from the home and melts snow on the roof, causing refreezing at the edges.
- Use waterproof under-layment near roof edges.
Insulation and Ventilation
- Proper Insulation: Use high-quality insulation, such as spray foam or fiberglass, to maintain indoor temperatures and reduce heating costs.
- Focus on the attic, walls, and floors.
- Ventilation: Ensure adequate attic ventilation to prevent condensation, ice dams, and mold growth.
- Ridge vents and soffit vents can promote airflow.
Foundation and Drainage
- Frost-Protected Foundations: Use insulated foundations or frost-protected shallow foundations to prevent frost heave, which can damage the structure.
- Drainage Systems: Ensure proper grading around the home and install French drains or sump pumps to prevent water accumulation from melting snow.
Heating Systems
- Efficient Heating: Invest in a reliable heating system, such as a high-efficiency furnace, boiler, or heat pump.
- Radiant Floor Heating: This can provide consistent warmth and reduce heating costs.
- Backup Power: Install a backup generator to maintain heating during power outages.
Windows and Doors
- Energy-Efficient Windows: Use double- or triple-glazed windows with low-E coatings to retain heat and prevent drafts.
- Sealed Doors: Install insulated exterior doors with proper weather stripping to block cold air.
Snow Management
- Snow Guards: Install snow guards or snow fences on roofs to control the slide-off of large snow masses.
- Pathways and Driveways:
- Consider radiant heating systems under driveways or walkways to prevent ice buildup.
- Use materials like concrete or asphalt, which are easier to clear.
Durable Exterior Materials
- Siding: Use materials like fiber cement, metal, or wood treated for cold and wet conditions.
- Gutters and Downspouts: Use larger gutters designed to handle heavy snowmelt. Install heating cables if necessary to prevent ice blockages.
Energy Efficiency
- Air Sealing: Seal gaps around windows, doors, and utility penetrations to minimize heat loss.
- Thermal Breaks: Include thermal breaks in the building envelope to reduce heat transfer.
Local Building Codes
- Adhere to regional building codes that address snow load, wind resistance, and insulation requirements. These codes are designed for safety in extreme weather.
Accessibility and Safety
- Accessible Entryways: Ensure entryways and walkways are safe and easy to clear of snow.
- Emergency Exits: Plan for clear emergency exits even during heavy snowstorms.
- Fire Safety: Use materials that are fire-resistant, as snow-covered regions may also face winter-related fire risks.
Aesthetic and Practical Design
- Overhangs: Design roof overhangs to protect windows, doors, and walls from snow and ice.
- Mudroom: Consider a mudroom or entryway with storage for snowy boots and winter gear.
By addressing these considerations, you can build a home that remains warm, energy-efficient, and resilient in a snow-heavy environment.