Synthetic shingles—including composite slate and shake—are among the fastest-growing segments in the roofing industry due to their durability, aesthetic appeal, and long lifespans. However, these high-performance materials present unique challenges for snow management.
At the Alpine SnowGuards research facility in Morrisville, Vermont, we have dedicated several years of performance testing to mastering snow retention on these advanced materials. By studying how various synthetic profiles react to extreme winter weather, we have developed industry-leading best practices for protecting these modern roofs.
Most synthetic shingles are engineered from advanced polymers or composite resins. While these materials are designed to withstand impact and UV rays, they are inherently lower in friction than natural slate or wood.
Slippery Surfaces: The smooth, non-porous nature of synthetic materials allows a thin layer of meltwater to form quickly between the shingle and the snowpack.
The Avalanche Risk: Without proper retention, this meltwater acts as a lubricant, leading to sudden "roof avalanches" that can damage landscaping, gutters, and anything below the eaves.
Varying Profiles: Synthetic shingles come in a wide range of thicknesses and exposures, requiring snow guards that can accommodate specific butt thicknesses without lifting the shingles.
Our research facility uses high-definition cameras and an on-site weather station to monitor how snow retention systems perform on synthetic roofs in real-time.
Synthetic shingles require mechanical attachment directly to the structural roof deck. Our testing ensures that our snow guards—such as the Fusion-Guard and Snow Bird—maintain their shear strength under the intense pressure of shifting snow blankets on steep-slope synthetic roofs.
Synthetic materials react differently to solar heat than natural materials. We study how "microclimates" on the roof lead to ice formation at the eaves. This research led to the development of integrated systems where snow guards hold the snow and HeatDefender thermal cables manage the resulting meltwater.
Because synthetic shingles are low-friction, a single row of guards is rarely enough for steep pitches. Our testing validates that a multi-row "density" layout is essential to keep the snow blanket from tearing and sliding around the guards.
Based on our multi-year research findings, we recommend the following for any synthetic roof project:
Check Butt Thickness: Ensure your chosen snow guard is compatible with the shingle's butt thickness (commonly ranging from 3/8" to 1") for best performance.
Match the Aesthetics: Many synthetic roofs are chosen for their beauty; select snow guards that can be color-matched to the shingles for a seamless look.
As synthetic roofing continues to evolve, Alpine SnowGuards remains committed to providing performance-tested solutions. Protect your investment with a system that has been proven in the toughest winter conditions.
Get a Free Recommended Layout: Use our calculator to see which snow guard is right for your synthetic roof