Case Study: My Experience With Roofs

Why You Should Use Snow Guards When snow falls on a cold roof surface, it begins to accumulate. Heat from within the building or warming of the exterior air melts the snow, producing a thin film of water between the roof surface and the snow which acts as a lubricant. This causes a shear plane between the roof surface and the snow mass. The entire mass will often slide off a steep or smooth roof surface without notice due to this shear plane. This “avalanche” is prevented using snow guards. Holding back thousands of pounds of potentially damaging snow and ice is governed by the laws of physics. Preventing sudden snow falls, particularly from metal roofs is achieved with a properly spaced quality snow guard product. Finding the right design can be a challenge with the myriad options available in the market. Product material, style of installation, layout or spacing, make up a snow guard system. Investing in quality products is essential over time. Some may be cheap, mass-produced, without proper research done to determine the suitability of the materials used. Never fail to verify testing information done and ensure the system can stand up to snow loads common to your area.
Where To Start with Roofs and More
Pad-style snow guards with 3″ to 4″ wide, forward-mounted flat surface with solid support struts and base is the most efficient design.
What Do You Know About Equipment
The simplicity of attachment may be appealing for seam-mounted types, but there are some pitfalls. The design cannot stop movement of snow and ice other than what is on top of the seam. These guards are generally stronger (rated from 20,000 to 40,000 load capacity) compared to the seam. If load is only applied to one side of the guard, torque is created, resulting to seam damage. For snow bar systems, failure may be induced by too few bars installed or the clamping is done only at every second or third seam (to keep down cost). Adopt square bars since snow tends to slide over round bars. Another critical element for a snow guard system is layout. While the guard is considered as the system’s heart, the backbone is provided by the layout. A well-designed guard installed with the right professional layout achieves best value. Multiple staggered rows of guards make up a good layout. Avoid the common layout mistake of mounting only one row down by the eaves. This gives snow and ice too much room to build-up velocity and allows load accumulation at the lower section of the eaves. Snow guard solutions must be able to satisfy the need for safety and cost-effective maintenance. Millions of dollars are annually lost due to property damage, not to mention loss of life incidents. The consequences of sudden roof snowfalls which could result to liability risks should be addressed by home and business owners.