Be Prepared this Winter!
When Should I Remove Snow From my Roof?
There is no right time or set amount of snow that each building can withstand. Buildings have different load capabilities. Factors such as how the building was designed, constructed, and what modifications have been made need to be considered. All of these factors enter into how much weight the structure can sustain.
Priority Scheduling for CentiMark’s Snow Removal Services
A timely response to heavy, drifting snow and ice on your roof is crucial to avoid structural damage to your building.
Enroll for CentiMark’s Snow Removal Services Today!
1. Review CentiMark’s Snow Removal Waiver (Click here to download waiver)
2. Sign and mail completed waiver to:
Snow Removal Services
12 Grandview Circle
Canonsburg, PA 15317
Or email completed waiver to: National.Accounts@CentiMark.com
3. You will receive priority snow removal scheduling
How much does snow weigh?
One inch of water weighs 5.21 pounds per square foot. Meteorologists estimate that 12 inches of snow is the equivalent to one inch of water. Therefore 12 inches of snow weighs approximately five pounds. The total weight being applied to your roof is not only determined by the amount of snow that falls but also how the snow drifts on the roof. Due to winds and the slope of the roof snow can pile up and essentially point load or place a disproportionate amount of weight on certain areas of the structure.
CentiMark’s Safety Steps of Proper Snow Removal:
- Underdeck inspection paying attention for deflection
- Placement of flag markers to ensure skylights and other projections are identified before removing snow
- Provide clear passage to all drains and ensure all gutters are clear
- Clear all roof units and vents
- Special attention to snowdrift areas (parapet and firewalls, penthouses and elevation changes)
- Facts You Should Know About Snow and Snow Removal:
- Understand what loads your structure can handle and the weight of snow so you can monitor accumulation and drift areas to have snow removed at the appropriate time.
- Factors such as how the building was designed, constructed and what modifications have been made need to be considered. All these factors enter into how much weight the structure can sustain.
- How the snow drifts also affects the total weight being applied to your roof. The slope of the roof and the winds can cause snow to pile up and place a disproportionate amount of weight in certain areas of the roof.
- If snow melts and then freezes it can slow or eliminate the ability of the roof to drain properly. Once a layer of ice has formed, it may not melt quickly which can eliminate water flow off the roof quickly causing dangerous weight amounts on the roof.