Is Plastic Snow Guard Retention Better Than Metal?

Every once in a while a customer will ask us why they should purchase our metal snow retention rather than the plastic ones they see. We typically don’t like plastic snow guards for many reasons.

The first reason is because of the type of adhesive used to attach plastic snow guards. Through our testing, we have found that failure exists when freeze-thaw temperature is introduced to the adhesive.
The second reason, they crack and deteriorate when continuously exposed to the sun’s ultraviolet light (UV). See the images below.
The third reason, manufacturers don’t warranty failure when the plastic snow guards pull apart from the adhesive.
From all of these reasons this why metal snow retention is a much wiser choice!


plastic vs TRA

TRA Metal Clamp-on vs Plastic Guards


Most plastics eventually become brittle when exposed to the sun.

Because of its tough nature, metal can withstand the sun’s destructive UV rays. Over time plastic will crack and deteriorate when continuously exposed to the sun.


Cracked, Brittle and Broken “Plastic Snow Guards”


TRA’s metal snow retention systems are attached securely using a variety of durable and strong mechanical methods.

Unlike metal, plastic snow guards are usually attached to a roof using caulking, which is likely to fail for the following reasons:

  • If the roof is dirty or wet when installing this makes the adhesive not adhere properly. When have you ever seen a truly clean roof?
  • More common than not snow guards are installed at temperatures below 40 degrees.
  • Caulking cure time can be more than 30 days above 40 degrees.
  •  Over time plastic will crack & deteriorate when continuously exposed to the sun UV.


1 rail snow guard for metal roof

TRA C21Z Clamp-on with Ice Flags 


Unlike plastic, metal lasts.

Plastic snow retention manufacturers generally do not warranty the attachment just plastic snow guard. If a plastic snow guard fails, the architect or contractor becomes liable for the damage to property /or human life.

Next time you are near a roof with plastic snow guards, see if any are missing and let us know!

We recommend only metal snow retention because we know it can properly protect those in and around your home. For extra protection, we engineer from the sheathing up with the fastener and provide a warranty on the entire snow retention system. Before installation, we engineer a specific layout to see that the system is exactly what you need for your specific location and weather. Contact us with any of your project details and we’ll provide you with the best snow defense system that’ll get you ready for winter.


Snow Retention The Invisible Code

Snow retention codes do not seem to be a priority in the United States’ roofing industry. But it is very common to see snow and ice sliding off of a metal roof’s slippery surface. Snow and ice crush cars, and damages the roof, gutters, and landscape.  In some cases, snow and ice cascading off roofs have killed people. Codes for snow retention systems are essential to protect people and property from sliding ice and snow.

There are many reasons snow retention systems fail and why we need codes in place.  Some examples are:


snow retention system

This snow retention system was not engineered for some variable of the project that caused it to fail.

The snow guard was not strong enough to hold the load it was carrying.

Anyone can cast a wax snow guard, spread some adhesive on the bottom, and tell the consumer how to install it without any testing of the product or the system. Codes would provide a standard to ensure adequately designed products are utilized.


Roofing material is inadequately secured for the shear created by sliding snow.

If the roofing material is not securely fastened to the deck (specifically on standing seam metal roofs), added weight can cause the standing seam metal roof to slide right off, along with the rest of the roofing material and snow retention system. There is a code requirement in place for wind uplift on standing seam metal roofs, but not for shear strength.

Screws or fasteners pull out.

sliding snow and ice

Sliding snow can be incredibly dangerous.

When installing snow retention on roof sheathing, the thickness and type of the sheathing determines the fastener pull-out strength.  If one is installing a snow retention system on 7/16-in. OSB board, the fastener will fail more quickly than when using ¾-in. plywood.  (See chart below.) When designing a layout for a project, many snow retention manufacturers do not test for these variations.  If the snow retention system was designed for ¾-in. plywood and the project is using 7/16-in. OSB board, the whole system needs to be redesigned.

The fastener does not penetrate the sheathing.

If the fastener/screw is not penetrating the sheathing, the snow guard will not have the holding strength for which it was designed.




plastic snow guards

These plastic snow guards fell to the ground because the adhesive did not bond properly

When using an adhesive, if the surface is not free of dust, dirt, oil, or waterproofing; or it is not clean and dry, the adhesive will not adhere properly.
If the temperature is not above 50 degrees F, the sealant will not cure. If a load is placed on the snow guard before the 28-day cure time, the snow guard is more likely to fail. (This is according to the Technical Data Sheet  for SB-190)


The system is not designed for the roof slope and snow load.

When designing a snow retention system, factors change from project to project: the slope, roof type, sheathing type, and roof snow load.  If the snow retention system is not engineered for the variables of the project, it can fail.
Most snow guards are not tested to the fail point of the system.

Many snow guard manufacturers claim theirs are tested, and many of them are, but they are not tested to the fail point of the entire system.  The product may be tested to maintain its shape, but was it tested to stay on the roof?  It’s great if the product stays in one piece, but not if the fastener fails, the adhesive fails, and the sheathing fails.

snow retention code

A snow retention code needs to be put in place to help prevent injury to people and damage to property.


The product was not installed to manufacturer’s specifications.

The manufacturer’s instructions need to be followed meticulously in order to ensure safety and to keep warranties in effect.  Many manufacturers have specific torque requirements, placement, and maintenance instructions.  If these instructions are not followed, the system can fail and the manufacturer is not at fault.

Obviously, there are valid reasons why the United States should establish codes for snow retention on roofs.  Why hasn’t this happened?  A few reasons could be:

  1. Snowfall occurs in certain areas of the country but not nationwide; therefore, the demand for codes is minimal.
  2. Not many deaths occur due to ice and snow sliding.
  3. Property damage is localized.
  4. The insurance industry is not pushing for this type of code.

There are many other codes in place to protect people and property; so why not for snow retention?  We have codes for wind uplift and ICC test standards for product failures due to wind and moisture penetrations, to name a few.  How many life threatening events need to occur before we do the right thing when it comes to a code for snow retention on roofs?

It’s time to make the invisible snow retention code visible.


  1. Surebond Technical Data Sheet SB-190.

About the author

Terry E. Anderson has been in the roofing industry for over 35 years. He is the owner of Anderson Associates Consulting and president of T.R.A.-MAGE, Inc., a manufacturer of roof snow and sun accessories. Anderson was sought after to solve tile roof problems, eventually researching solutions to the frequent structural damage caused by sliding snow and ice. Traveling to Europe, Terry studied how the roofing industry there successfully dealt with snow and ice issues. Using his years of experience and research, he coauthored Concrete and Clay Tile Roof Design Criteria for Cold and Snow Regions. Anderson founded T.R.A. Snow and Sun, now in partnership with MAGE and known as T.R.A.-MAGE, and is recognized as a leader in snow retention systems. He is a member of RCI, WSRCA, and on the technical committee for the Tile Roofing Institute (TRI).

Published: Interface Dec 2011

Download (PDF, 407KB)

Leave Your Flashing Worries Behind

Leave Your Flashing Worries Behind

TRA Snow and Sun has something that every roofer needs “flashing”. It’s a must-have for all roofers. We call it the “roofer’s duct tape”.

The primary reason any type of roofing exists is to provide a protective layer to maintain a barrier between the interior of a building and the weather. How this is accomplished can take many different forms.  When it comes to flashing, there’s nothing proven to work better than TRA Snow and Sun’s flexible aluminum or copper flashing. It adheres to the wall or other roofing structure or tile, is extremely flexible, and adds a professional finish to all roofing projects while being extremely effective at sealing out water and preventing leaks.

VersaFlash and TileSeal are flexible rolled flashing that attach to the surface of the roof with butyl adhesive. Our flashing works like magic for many roofs especially around hard to flash areas! VersaFlash and TileSeal are extremely easy to use on the work site. You can use it in areas like around roof-to-wall abutments, around chimneys and pretty much everywhere else. Plus, it’s competitively priced.

Simply put, TRA Snow & Sun flashing is easy to use, flexible and will save you time and money without sacrificing an inch in quality. There are many reasons you’ll love our Aluminum and Copper VersaFlash and TileSeal Flashing — but once you choose it, you’ll never roof without it again.

TRA Snow and Sun is your number one source for solar mounting, snow retention, flexible ventilation, and flashing material. We offer competitive prices and guarantee our products. Try a FREE SAMPLE of our VersaFlash! Give us a call today at 801-756-8666 for more details, and check out all of our flashing products.


Snow Guards With A Fresh Look To Color Hardware

Take a look at these pictures for a fresh new snow guard clamp-on look. Our black Xylan hardware is now available for any colored clamp-on. Would this be your new snow retention look? Tell us by a simple comment on our contact page

Color Trends…



    • New specialized color option for any colored clamp-on
    • Full paint application extending to the entire bolt thread
    • They’re resistant to heat and wear
    • Improves the functionality and life span by reducing the amount of wear 
    • Adds protection from corrosion
    • Stand out with a UNIQUE bold look 


TRA snow guards for snow retention systems are available for all types of roofs and come in a variety of options. The specific snow retention equipment recommended for your roof will depend on the type of roof system installed, the pitch of the roof, snow load, sheathing type, how old the building is and budget.

Our snow guard snow fences, brackets, and clamps are all types of snow retention systems that prevent large sheets of snow or ice from falling off a pitched roof. The systems hold the snow on the roof so it can gradually melt off, preventing damage to people and objects below.

At TRA Snow and Sun, we engineer and layout each project free of charge using the unique factors specific to your project. TRA Snow and Sun representatives will work with you to design the most efficient snow guard retention system. We can design your roof to work with a variety of applications. Just give us your project details & we will design your Snow Guard Retention System to fit your project. For more information call TRA Snow and Sun at 800-606-8980.                                                                                                

                                                                    REQUEST A QUOTE



Why Specify Snow Guard Retention


There are several factors that one must evaluate when determining if a particular building requires a snow guard retention system. During the winter months, as snow accumulates on your home, gravity will begin to pull it down the slope of your roof. There are many reasons this can be harmful to your home or even dangerous. In worst structural cases, this can lead to damage to costly gutter systems, structural damage to lower roof levels, and even destruction of mature landscaping around the perimeter of a home.

Low-slope roofs with parapet walls naturally keep snow and ice on the roof. On a sloped roof, however, large chunks of snow and ice can slide off as the snow melts. Avalanching snow is probable on roofing systems with a steep enough slope and/or a low coefficient of friction. This is especially dangerous for pedestrians walking below.


  1.  Damage/Injury – People and property can be struck by snow and ice falling from the roof. Property damage and injuries, even deaths can occur when snow is not properly retained on a roof.
  2.  Limited Access – Entrances to buildings can be blocked by snow and ice that falls from a roof.
  3. Roof Damage – When snow and ice masses slide off a roof, costly damage occurs.


There are many types of roofing materials, each has advantages and disadvantages and each should be considered when determining the placement of snow retention on the building.

When considering whether to install a snow retention system on your roof, you may first want to consider what type of roof you have. Will your roof allow snow to slide? Probably. In places with heavy snows, like areas in Utah, it is common for snow to slide off of all types of roof systems, leading to heavy ice and snow build up in gutters, which causes damage over time. If you have a metal, tile, slate or membrane roof with a pitch of 1/12 or greater, snow will definitely slide off and cause problems.

Engineered snow retention and solar mounting solutions


TRA snow retention systems are available for all types of roofs and come in a variety of options. The specific snow retention equipment recommended for your roof will depend on the type of roof system installed, the pitch of the roof, snow load, sheathing type, how old the building is and budget.

Our snow fences, brackets, and clamps are all types of snow retention systems that prevent large sheets of snow or ice from falling off a pitched roof. The systems hold the snow on the roof so it can gradually melt off, preventing damage to people and objects below.

At TRA Snow and Sun, we engineer and layout each project free of charge using the unique factors specific to your project. TRA Snow and Sun representatives will work with you to design the most efficient snow retention system. We can design your roof to work with a variety of applications. Just give us your project details & we will design your Snow Retention System to fit your project. For more information call TRA Snow and Sun at 801-756-8666.                                                                                                           

                                                                    REQUEST A QUOTE



New Improved Solar Tile Hook

What Makes Our Solar Tile Hook Unique?

No hassle is bigger for an installer than finding out you have to re-cut tile because it won’t line up. With TRA Snow and Sun Solar Tile Hook, there’s no cutting required, saving you time on your project. Our Solar Tile Hooks are available for low, medium, and high profile tile roofs, and are adjustable up to six inches for easy installation for secure attachment to the structural member of the roof. With our unlimited FREE engineered layout on all your projects, we guarantee our Solar Tile Hooks are made of the highest quality for superior strength.

Our high-quality Solar Tile Hooks divert the mount around the tile instead of going directly through the tile, which decreases install time and doesn’t compromise the strength or coverage of the customer’s tile. The wide base of the hook makes the mount very easy to adjust.


How Will The Solar Tile Hook Benefit Me As An Installer?


TRA’s cutting-edge Solar Tile Hooks are:

  –  made of corrosion-resistant extruded aluminum

  –  quick and easy to install

  –  require no cutting

Solar Tile Hooks must be fastened to structural members of the roof, such as rafters, purlins or trusses, and in order for tile pans to line up in the correct locations, are adjustable up to six inches to the left or right.


Solar Tile Hook

  • Available for flat, mid and high profile
  • Adjustable for secure attachment to the structural member of the roof
  • Corrosion-resistant materials
  • Quick and easy to mount
  • Decrease Labor– No cutting of the tile required


  • Hook – Stainless Steel
  • Base – 6005A-T6 Aluminum
  • Spacer Block – 6005A-T6 Aluminum


Solar Tile Hook has been tested from the fail point of the system.

A Stronger Foundation

Your solar energy system is only as strong as the mounting structure on which it’s built. We guarantee top-of-the-line products, accessories, and fastening systems. Every component is reliable and built to last. Click here to contact us for an estimate and to begin your Solar Tile Hook plan today!


At TRA Snow and Sun, we engineer and give detailed layouts of each project for free of charge using many factors specific to your project. We then provide you with; rail spans, max loads on components, wind parameters, solar panel geometry, force per foot on rail and panels, a schematic of the module field, the wind speed, shipping weight, and project details. TRA Snow and Sun representatives will work with you to design the most efficient solar mounting system.

Just give us your project details & we will design your Mounting Solution to fit your project.

See the D2HLJ Deck Mount at Western Roofing Expo, Booth #556

June 11 – 12, 2018

Paris Las Vegas

Plan to attend “The Largest Roofing Expo presented by Roofing Contractors for the Roofing Industry” – the Western Roofing Expo 2018 – your once-a-year opportunity to maximize your company’s productivity, efficiency and profitability. Known for bringing all of the elements of the roofing industry together, the Western Roofing Expo focuses on the western region of the United States and the specific needs that roofing and waterproofing contractors face in these areas.

Join us and see the D2HLJ Deck Mount at the Western Roofing Expo in Las Vegas!

We will be there at Booth #556.

D2HLJ Deck Mount Snow Fence Used On Corrugated Roofs (Learn More)

Stop by and meet some of our TRA team Monday from 1 PM – 6 PM & Tuesday from 1:30 PM – 5:30 PM.

Sale Team Edit Pic

FREE PASS! Attend the Western Roofing Expo 2017 for FREE! Swing by to see TRA Snow & Sun at Booth #556 Pick up your badge at ‘Will Call’ by REGISTERING ONLINE, or download the free trade show pass and register on-site. See you in Las Vegas!

For more information on Western Roofing Expo 2018, please visit

At TRA Snow and Sun, we know every project is unique and no one solution fits every application. That’s why we offer engineered solutions specific to your project. You provide us the project details and we will take care of the rest. Contact us at 877-290-8669.

Join Us at Western Roofing Expo, Booth 556

June 11 – 12, 2018

Paris Las Vegas

Join us at the Western Roofing Expo in Las Vegas!

We will be there at Booth 556.

Download a free pass now! ==>…/2018/01/WRE_2018_Free_Trade_Show_Pass.pdf

Stop by, meet some of our TRA team Monday from 1 PM – 6 PM & Tuesday from 1 PM – 5:30 PM.

Sale Team Edit Pic

We’re excited to see you at WRE and share with you the new snow retention and solar mounting products and ideas TRA is working on!

If you have questions about what type of solar mounting would be best for any roofing situation please stop by our booth and we would love to help!

If you have questions about what type of snow retention system would be best for your roofing situation please stop by our booth and we would love to help!

For more information on Western Roofing Expo 2018, please visit

Innovative Awning System On A Retaining Wall

What do you do when you decide to put a pool where you originally planned to install a solar power system and the roof won’t work?

You get the determined folks at TRA Snow and Sun to help you think outside the box and create something we think is an innovative concept!  That’s what contractors of the Bourne, Massachusetts home project did when they encountered this issue on the project being constructed in a beautiful wooded area with a steep hillside at the back of the property.

Here’s what transpired.

Plymouth Solar Energy of Plymouth, Massachusetts was assigned the task of determining where to place the solar energy system during the construction of a large home.  After making the site visit, Greg Aborn of Plymouth, determined that the terrain was unsuitable for a ground mount system.  The soil was too sandy, unstable and steep.  When the owners disclosed that they had now decided to build a retaining wall and put a pool, Greg began research into alternative solutions.  This is how he discovered TRA Snow and Sun’s Awning Solution.

Greg says, “I am very strict with the quality of materials and products that I will allow for any of our installations, so I began digging deep into the awning- racking materials, engineering, installation methods/requirements, grounding, mid/end clamps etc… I was very pleased with TRA’s product in every way.”

Gary Heslington, of TRA Snow and Sun, was involved in the engineering and designing which began as a new concept – an awning system attached to the retaining wall, which was still in the design stage when he came on board. TRA worked hard on several different designs, trying to find one that would work well for the solar installer and homeowner.  He says, “When the concrete retaining wall idea was included where the awning system was eventually attached, we had to do three complete revisions, and then it took several months for the property owners to approve.  But we stayed in touch and were very happy when we got the go-ahead from Plymouth.”

TRA Snow and Sun has a reputation for creating engineered systems for solar mounting and roof snow retention systems and are very adept at thinking outside the box.  They used all of their experience (25+ years) and resources on this project.  The engineering and time spent was free.

Greg Aborn explained some of the difficult aspects of completing this project, “Mounting a highly visible system in a tough environment for exposure to the elements meant I needed to place significant emphasis on system durability and longevity.  I would bet my last dollar the wall will fail before our system does!”

To install this solar panel system, they fabricated custom scaffolding which allowed the installers to stage the wall in sections while not disturbing the soil retention (special grass to hold the soil together) that the homeowners were required to plant in compliance with tight property set-backs.  Erosion concerns with the abutting neighbor and steep property topography leading downhill were also factors in the installation.

TRA’s mounting system, combined with creative problem solving, eventually overcame what seemed like insurmountable obstacles across an extremely complicated range of municipal regulations and restrictions.  The finished product exceeded the homeowners expectations and created a solar power system that creates 12.3 KW of energy while conforming to the requirements of both local authorities and the homeowner.

In the end, Greg Aborn has high praise for TRA Snow and Sun’s products and service, stating, “I hope this puts as big of a smile on your face as it does mine!! I want my salesmen to sell a whole lot more of these!!”

Plymouth Solar Energy –, (508) 746- 5430, 18 Main Street Extension, Suite 204, Plymouth, MA 02360



Going For GOLD: In Snow Retention!


TRA’s – Terry Anderson (President) & Laurie Anderson (CEO) Trip to Whistler Canada 2017

Just as the world-class athletes prepare for an incoming storm of opponent competition, so should we prepare for all possibilities to keep incoming snow and ice from roof avalanching.

Keeping snow and ice from avalanching off a roof requires a system of superior strength. When strength really does matter to save lives and prevent damage to property, how does a home or business owner know what snow retention product is strong enough?

How does someone decide what product measures up?

How does one decide the best method of installing a safe and reliable roof snow retention system?

If your answer to these questions is, “I can find that out. I’ll just look it up online under building codes or ask my roofing contractor.” 

Well, good luck.

There are NO codes for roof snow retention! None. Nil. Nada. (Our owner, Terry Anderson, is serving on a committee right now to finally establish standards. Watch for updates on this in the future!) If a contractor starts sitting codes or standards, be wary. The contractor might have his own standards, and we sure hope they all do, but there are no national or international standards for snow retention.

This makes it very important for owners, architects, engineers, and contractors to take extra care when designing a snow retention system. At TRA Snow & Sun, we seek to offer high-quality snow retention devices ENGINEERED for the unique snow & ice and building conditions relative to each specific project.

Snow retention as a science has emerged as a technological know-how for human safety. The laws of physics have to be used when holding back lots of destructive snow and ice. Annual assets and personal damage from destructive sliding snow and ice are in the millions, however, the price of a human life is incalculable. If someone dies as a result of no snow retention or faulty snow retention, the liability threat to household owners and business proprietors is astronomical.

By retaining snow on the roof of a building and allowing even snow melt-off, injuries to residents/guests and property below the roof of a building can be avoided, saving money and limiting the possibility of personal loss. By installing snow retention you can:

  • Prevent danger to residents and guests.
  • Prevent costly roof and property damage.
  • Maintain safe access, keeping entrances/walkways free of snow and ice.
  • Promote energy efficiency by retaining snow which is a good insulation blanket.
  • Trust in the best with the highest quality snow retention devices.

How does one avoid the potential pitfalls of a bad snow retention product?

It can get perplexing with several hundreds of different snow guard types and designs to consider from. With a TRA snow retention system, you know you’re safe because we have gone through extensive product testing. Our products are built to last to the fail point of the snow retention system, not just the product. Unlike other plastic type snow guards that turn yellow and fail over time, TRA’s snow retention systems are superior in strength. Our superior snow retention is designed to manage snow migration on any type of roofing is made of stainless steel or brass.

plastic vs TRA


In simple terms, a first-rate snow retention product coupled with a reliable and safe FREE engineered spacing layout will help lessen the legal responsibility related to the unexpected slid of snow and ice from roofs. All requesting clients can receive free engineered layouts within 2 working days for each project’s specific requirements. For a free layout, data sheets, specs & quote contact us at 855-542-1861.

TRA Snow and Sun, Inc. offers AIA continuing education course, “Roofing Solutions for Alpine Regions”


roofing solutions in alpine regions, continuing educationIn response to requests from architects and other construction specifiers, TRA Snow and Sun has decided to continue with the popular continuing education course, “Roofing Solutions for Alpine Regions”.  

Learning how to protect people and property from dangerous falling snow and ice just got much easier with the online course created by TRA Snow and Sun and approved by the American Institute of Architects (AIA). When an architect designs a building there are hundreds of decisions to make besides the obvious, visual components that make up an attractive and functional building: what type of window to specify, what color carpet, or what type of roof are obvious ones. There are some specifications that are vital to the safety of those who will use the building and create liability for the architect and contractors.

If the building is located in a snowy, cold climate, special consideration should be given to the proper design and engineering of devices to retain snow and ice on the roof. Most construction professionals don’t realize the importance of snow retention devices and how critical they are in alpine regions.

Terry Anderson, nationally respected roofing consultant and owner of TRA Snow and Sun and Anderson Associates Consulting, has established himself and his companies as experts in the roof snow retention industry over 35 years and is co-author of the Concrete and Clay Tile Design Criteria for Cold and Snow Regions. The AIA online course, Roofing Solutions for Alpine Regions provides one credit hour of continuing education credit for architects wishing to maintain their license. It is also available for anyone wishing to understand the best way to design a roof in a cold or snowy climate. It incorporates Anderson’s extensive experience and deals specifically with:

  • The common roofing challenges that are unique to cold climates.
  • The advantages and disadvantages of the most common solutions to snow and ice on roofs.
  • The accepted roof design practices in Europe as compared to those in the United States and Canada.
  • The concepts and effectiveness of roof ventilation and snow retention in reducing snow and ice problems.
  • Several factors to be considered in the proper engineering of roof snow retention devices.

The course is available online (Ron Blank) or online (AEC Daily) 24 hours a day, 7 days a week. Credits are automatically submitted to AIA, CSI and other organizations by AEC Daily, one of the largest providers of free continuing education for architects, engineers, contractors, specifiers, and other construction professionals.

AIA Continuing Education, Roofing Solutions in Alpine Regionsroofing solutions for alpine regions

TRA Snow and Sun, Inc., located in American Fork, Utah, offers Roof Snow Retention Devices, Solar Racking Systems and Roof Ventilation and Flashing Solutions. They provide all customers, from the individual homeowner to the big developer, free engineered designs for all their systems. For more information call Devin Hancock at 800-606-8980.


The Importance of Snow Retention

metal roof with snow guards in snow storm

Winter is on its way and snow accumulation is imminent across the U.S. The traditional approach to snow accumulation on homes and businesses is to remove it or allow it to slide off as it softens and melts. Unfortunately, this approach can lead to injuries or property damage and is not optimal for home energy efficiency in the winter. Snow retention on the roof can solve both of these problems by acting as an insulating force to retain heat indoors, as well as enabling snow to evenly melt off the roof without abruptly sliding off in a massive block. Here are some ways in which snow retention can benefit your home this winter.

  • Snow retention devices are mounted on the roof to prevent snow from dislodging in large masses and causing damage or injury to people or property below. They also prevent roof damage that will occur from prolonged ice dams.
  • Snow retention devices can be installed on any sloped roof in any area that receives snow. Snow fences and snow brackets are all versions of these snow retention devices, and are highly practical and cost effective solutions for heavy snow and ice. Here are some images of our new Snow Bracket I – Apex (valley & crest) for corrugated metal roofs.


Snow Bracket I (Valley) – Apex

Snow Bracket I (Crest) – Apex


  • Installing snow retention devices in strategic areas can help guard against injury and property damage over walkways, entryways, parking lots, congregation spaces, roof protrusions, and valuable landscaping.
  • Heat loss through the roof is a primary contributor to energy inefficiency during the winter. Maintaining a layer of snow on the roof can help to retain heat during the cold weather.

Installing Snow Brackets

Generally, snow brackets should be professionally installed by a licensed roofing or general contractor. This will ensure that the brackets are installed correctly, in the right locations, and that the proper quantity is used. There are a few factors that are considered when installing snow brackets. These include: average amount of snow at the location, snow load, pitch of the roof, type of roof and sheathing thickness, strength of the snow bracket, and type of fasteners. Considering these things will determine the number of brackets required for the roof. Snow brackets are not that difficult to install, but a roofing contractor will have the experience and safety devices to securely work on the roof and complete the installation efficiently.

At TRA Snow and Sun, we engineer and layout each project free of charge using the unique factors specific to your project. TRA Snow and Sun representatives will work with you to design the most efficient snow retention system. We can design your roof to work with a variety of applications. Just give us your project details & we will design your Snow Retention System to fit your project. For more information, call TRA Snow and Sun at 800-606-8980 or email at [email protected]


                                                                    REQUEST A QUOTE