As a homeowner, the sight of heavy snow on your roof can be concerning. While roofs are built to withstand a certain amount of weight, excessive snow accumulation can lead to serious problems. Knowing when and how to remove snow from your roof is crucial for protecting your home and ensuring your safety.
When Snow Removal Is Necessary
Not every snowfall requires immediate action. Here’s when you should seriously consider removing snow.
Heavy accumulation
The general rule of thumb is that if you have more than 18 to 24 inches of light, fluffy snow or more than 6 to 12 inches of heavy, wet snow, it’s time to take action. The weight can be deceptive; a cubic foot of fresh snow can weigh up to 20 pounds, while a cubic foot of packed, wet snow can weigh as much as 60 pounds.
Flat or low-slope roofs
Flat or low-slope roofs are particularly vulnerable to snow damage because they don’t allow for natural drainage. This can lead to heavy snow loads and the formation of large pools of water when the snow melts, increasing the risk of leaks and structural damage.
Risks of Not Removing Snow
Ignoring heavy snow on your roof can lead to some costly and dangerous consequences.
Ice dams and leaks
One of the most common issues is the formation of ice dams. As the lower layer of snow melts from heat escaping through your roof, the water runs down to the colder eaves and refreezes, creating a dam. This dam traps additional melting water, which can back up under your shingles and into your home, causing severe water damage to ceilings and walls.
Roof collapse in severe cases
In the most extreme circumstances, an excessive snow load can cause the roof to collapse. While this is rare, it is a risk, especially for older roofs or those with existing structural issues. The weight can also cause sagging and stress on your home’s framework.
Safe Ways to Remove Snow
Removing snow from a roof can be dangerous. If you’re not comfortable with the height or don’t have the right equipment, it’s always best to hire a professional.
Using roof rakes
A roof rake is a long-handled tool with a small roller on the end that allows you to pull snow off the roof while standing on the ground. This is the safest method for homeowners to prevent the heaviest snow from accumulating on the eaves, but it won’t clear the entire roof.
Hiring professionals
The safest and most effective way to remove snow is to hire a professional roofer. They have the proper safety gear, equipment, and experience to get the job done without damaging your roof or injuring themselves.
When You Don’t Need to Remove Snow
It’s just as important to know when to leave the snow alone.
Steep-sloped roofs
On a steeply sloped roof, most of the snow will slide off naturally as it melts, reducing the risk of a significant snow load or ice dam formation.
Small accumulations
If the snowfall is light and fluffy and only a few inches deep, your roof can handle the weight without any issues. It’s usually best to let the sun and natural heat do their work.
Need professional snow removal or a roof inspection after a storm? Contact Masterpiece Roofing today for a free estimate and ensure your roof is safe and secure all winter long.