Design Snow Loads
Denver building codes specify minimum snow load requirements:
How Much Snow Can Your Roof Handle?
Understanding your roof's actual capacity:
Snow Load Management
How to manage snow on your roof:
Warning Signs of Overloading
Watch for these signs of structural stress:
Preventing Snow Load Problems
How to prevent snow load issues:
Frequently Asked Questions
How much snow can a roof handle in Denver?
Most residential roofs in Denver are designed for 20-25 psf of snow load and can handle 30-40 psf in practice. This translates to approximately 2-3 feet of dry snow or 1-1.5 feet of wet snow. Watch for warning signs of overloading.
How much does snow weigh per cubic foot?
Dry snow weighs about 5-10 lbs per cubic foot. Wet snow weighs 20-30 lbs per cubic foot. A foot of wet snow can weigh as much as 3 feet of dry snow. Heavy, wet snow is the most dangerous for roofs.
How do I know if my roof is overloaded with snow?
Watch for sagging ceilings, cracked drywall, creaking sounds from the roof structure, and doors that suddenly stick. If you notice any of these signs, reduce snow load immediately and consider calling a structural engineer.
Do I need to remove all snow from my roof?
No. Remove snow from the eaves (using a roof rake) to prevent ice dams and reduce overall load. Leave 2-3 inches of snow on the roof to protect the shingles. Removing all snow can damage the roof surface.