Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages

What is snow retention?

Snow retention systems are used to hold back snow loads on a roof surface and allow it to melt in a controlled fashion. This avoids the issue of having snow avalanche off the roof in large sheets creating a hazard for anything below. Retention systems can be individual snow guards strategically placed on the roofs surface, or can be a rail/bar system commonly seen in high snow load areas.


Why Use Snow Retention?

  • Snow guards can help avoid costly insurance claims to damaged property or even people.

  • Properly installed guards will help prevent ice damming on the roof edge which ultimately keeps your roof functioning properly without leaks.



Tips on Selecting a Snow Guard?

Often times, a homeowner is set out on the task of selecting a snow guard for their roof.  While personally, I believe this is lazy on the roofers part and rather an attempt to excuse themselves from needing any snow guard knowledge, it is reality. If you are selecting a snow guard for your home, the first question you need to ask yourself is, what type of roof do I have?


Know your roof type!

  • Metal?
    • Standing Seam?
      • Mechanical Lock 1″ / 1.5″? Snap Lock? T-Seam?
  • Slate?
  • Asphalt Shingle?

Quantity of Guards: Insufficient quantity of snow guards is the number 1 reason for failure. Factors that impact snow guard qty include:

  • How much snow you get (psf ground snow load)
  • Rafter length
  • Number of Seams
  • Size of snow guard


Select your preferred style and material

The more you know about your roof, the better. Feel free to take a close up picture and give us a ring to have us help identify. It is necessary to measure the seam width as well.


Annual Snow Fall – Video Map

Below is a neat video illustrating the mean snowfalls for the USA. Use this link to search your zip code for your annual psf ground snow load




Copyright © 2020 Stortz & Son Inc.