The following is an excerpt from the article “Preventing Roof Collapse on Homes.” For more information please visit disastersafety.org.
ESTIMATE HOW MUCH WEIGHT YOUR ROOF CAN SUPPORT
- Unless the roof structure is damaged or decayed, most residential roofs regardless of the location of the house should be able to support 20 lbs per square foot of snow before they become stressed.
- In some areas of New England and in mountainous areas throughout the United States, snow loads used in home design may be considerably higher and the roofs may be able to resist a greater depth of snow.
- If you live in an area known for lots of snow, you can probably check with your building department to find out if higher loads were used at the time your home was built.