FREE PASS to Join Us at METALCON, Booth #531

October 18- 20, 2017

Las Vegas Convention Center

Join us at METALCON in Las Vegas with a FREE PASS! Attend METALCON 2017 for FREE! Swing by to see TRA Snow & Sun at Booth #531. 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!



Stop by, meet some of our TRA team Wednesday from 12 PM – 6 PM, Thursday from 12 PM – 6 PM & Friday from 10 AM – 1 PM.

We’re excited to see you at METALCON 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 would be best for your roofing situation please stop by our booth and we would love to help!

For more information on METALCON 2017, please visit

Game Winning Option!







The Atlanta Falcons are off to a great football season with a 3-0 winning record and will battle the Buffalo Bills this Sunday in Atlanta.  As you watch the game from your comfy home you know you’re safe and protected from dangerous weather.
What about if you attended the game in person?  How safe are you?

The Falcons’ new $1.5 billion Mercedes Benz Stadium uses TRA Snow Retention on its roof to keep fans safe in the event of a snowstorm (yes, Atlanta does get snow!) 

Just as the world-class Falcons prepare for the possibility of an incoming storm of opponents, the stadium has also prepared for all possibilities and so should you.

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 is 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 to 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.

We’re Here at Western Roofing Expo, Booth #143

June 11- 13, 2017

Paris Las Vegas

Join us at the Western Roofing Expo in Las Vegas! We will be there at Booth 143.

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 snow retention system or solar mounting system would be best for any roofing situation,

please stop by our booth and we would love to help!

FREE PASS! Attend the Western Roofing Expo 2017 for FREE! Swing by to see TRA Snow & Sun at Booth #143 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 2017, please visit

Meet Us at International Roofing Expo, Booth 2469

March 1-3, 2017

Mandalay Bay Convention Resort

Join us at the International Roofing Expo in Las Vegas! We will be there at Booth 2469.

Stop by, meet some of our TRA team Wednesday from 11 AM – 5 PM, Thursday from 11 AM – 5 PM & Friday from 11 AM – 3 PM.

Sale Team Edit Pic

We’re excited to see you at IRE 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 International Roofing Expo 2017, please visit

Could An Urban Roof Avalanche Affect You?



In the next couple of days, a wintry mix could make things dicey on the mountains and even in your neighborhoods. That’s why avalanche forecasters are urging caution. Nicole Vowell reports from KSL Channel 5 New.



To help avoid such avalanche conditions there are several factors that one must evaluate when determining if a particular building requires a snow retention system.

The first question you should pose is “What would happen if snow slides off the roof?”

The second question is “Do we care?”

When snow slides off of a roofing surface, it can come crashing down or slide off and then piles up on whatever is below the edge of the roof. Snow retention is frequently used to protect landscaping around the perimeter of the building, to protect guttering systems around the edge of the roof, and to keep snow from piling either on a lower roof level or decks, sidewalks and at garage entrances. If nothing below the roof can be damaged by this avalanche of snow and ice, it may be best to let the snow and ice slide off unhindered.

However, what if what is below the roof could be damaged?


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.


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.


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 Ben Anderson at TRA Snow and Sun at 800-606-8980,, or visit:                                                                                                           

                                                                    REQUEST A QUOTE


Featured Spotlight “Snow Retention – D Bracket”

 Snow Bracket D

Snow Bracket™ D

A question once asked – On the roofs of many houses, along the eave, there are…best as I can describe it… shaped thingies. I’ve seen others that look octagonal and yet others that are round. I’ve seen them on steep roofs and not-so-steep roofs. My bank even has them. They look great, but do they do anything? 

The answer is yes. What you’re talking about are called snow guards for retaining snow on the roof. When snow and ice accumulate on the roof, they are pulled by gravity and want to slide down the slope of the roof. A well-designed snow retention system is intended to hold the snow on the roof so that it can melt in place.

At TRA Snow and Sun, we engineer and manufacture over 54+ variations of snow guards, and always welcome custom pieces made just for your roofing project. Yes, 54 may seem a lot, right? And your right it is, and here’s why – every roof design can be complex and is different from material, slope, shape, size, pitch, valleys, etc.., and ground snow loads vary significantly from one area to another. This is why we make several different engineered (from the fail point of the system) snow guards tailored to each unique roof designs for every roof type, new or existing, and in many styles that differ in form and function.

trasnowandsun, snow retention, solar mounting systemsSecure Attachment

trasnowandsun, snow retention, solar mounting systemsSuperior Strength

trasnowandsun, snow retention, solar mounting systemsVariety of Material Types


snow clips, snow guards, snow bracket

Our first featured spotlight for this month is our unique Snow Guard Bracket D. The Snow Bracket™ D, a permanent snow retention system that is aesthetically pleasing on asphalt shingle roofs. Choose between a vast array of painted powdered colors, available in standard mill finish of steel, copper or aluminum. The Snow Guard Bracket D fastens to roof sheathing to any new construction of an asphalt shingled roof.

Asphalt shingle roofs very common in the United States and it is important you have a Snow Bracket™ that fits the roof type you are installing the product one.

  Snow Bracket™ D

snow bracket d snow guardSnow-Bracket-D Maple-leafSnow-Bracket-D Sunburst



Length: 10″
Width: 1 3/16″
Height: 3″


• Steel : 16 ga (ASTM A879)
• Copper : 48 oz (ASTM B152)
• Aluminum : .063″ (H32-ASTM B209)


• Electro-galvanized (Paintlock*) steel
• Hot-dipped galvanized steel
• Mill finish Aluminum
• Mill finish Copper
• Powder coating available in many Colors

*We can provide Paintlock brackets unpainted BUT they must be painted before installing or rusting will occur. Also, available with attachments see images to the left with Maple & Sunburst.

Custom Designs and Engineering

At TRA Snow and Sun, we engineer and lay out each project free of charge using many factors specific to your roof. We then provide you with the snow retention plan, layout and product detail. TRA Snow and Sun representatives will work with you to design the most efficient snow retention system. Fill out our Snow Retention Checklist to get started.


All Snow Brackets have been tested from the fail point of the system.

Retro-fit Snow Retention. What to do?

One of my older relatives used to say, when confronted with a dilemma, “What to do, what to do….”  It made me chuckle!

But, this phrase describes a dilemma for people confronted with snow and ice avalanching off their already installed roof.  They want to keep the snow up there

snow clips, snow guards, snow bracket

rather than down there

Snow Avalanche Off A RoofFalling Snow in Park City, UT

but what is the best solution?

First of all, retrofit is similar as well as different from new construction.  Basic questions need to be answered for new and retrofit construction.

  • What is the slope?
  • What is the snowload in the area?
  • What type of roofing product is being used?
  • What type of sheathing is under the roofing material?

For retrofit, snow retention installers don’t have the luxury of applying the snow retention devices as the roofing material is installed in a new project.  This is when “What to do, what to do…” might be heard under their breath!

How do you keep snow and ice from falling off while also maintaining a water-tight system when the roofing is already on the roof?  How hard is it to do this?

Contractors need a simple and effective solution.

For asphalt shingles, simulated shake, and other similar roofs, using TRA’s H Snow Bracket, there is no need to pull back the headlap to install a device. Butyl or caulking can be applied on the surface of the roofing product, then the bracket is installed directly into the sheathing using screws.  A clip is then placed over the screws.


Snow Bracket H

Easy.  Effective.

The reason this system will work on retrofit is because TRA’s engineering is done using the specific factors as mentioned above.  When installed using the engineered layout, the roof will now hold back the snow and ice that would have fallen off, damaging people or property below.

At TRA Snow and Sun, we help you find an Engineered Solution.  Call us for a free layout, provided within 2 working days.

Snow Bracket H

Designed for most roof types

Available with or without fastener cover clip

Can be powder-coated to match roofing material

Available in 16 g steel, 48 oz copper, 26 g Cor-Ten, 16 ga stainless steel, .063″ aluminum

Finishes – Electro-galvanized, hot-dipped galvanized, mill finish aluminum, copper or Cor-Ten

Power-coating available in many colors.

Why Decorate? It’s Not Even Christmas!

If you drive by the TRA Snow and Sun manufacturing and office facility at 1657 S. 580 E. in American Fork, Utah, the first thing you will probably notice is the blue metal panel roof.  We like the all-American colors we chose for our company – RED, WHITE and BLUE and we like our building!HPIM0345

Like many manufacturing facilities, we have a metal roof on the production portion and concrete tile over the office section, and at 4500 feet altitude and snow/ice blessing Utah in the winter, we also needed to install snow retention.  We installed snow fences on the metal panels and Snow Bracket B’s on the concrete tile roof over the office, but a little roof decoration was needed!

We chose to enhance the look of the snow retention on our roof and, luckily, TRA Snow and Sun has a way to do that.  Note the MAPLE LEAVES on the snow guards.  These decorations do not impede the function of the snow retention in any way and add that enhanced look that some customers desire.

Maple leaf on TRA roof cropped

We really like them and think they add a nice feature to our roof.  Maybe we should have chosen the BEAR or the MOOSE, but we started making those later.

moose snow guard standing seambear clamp on snow guardtree clamp on snow guard









What do you think?  Should we have used the TREE instead?

Take the survey and let us know which of our decorative enhancements you like best.  Should we make others?

Vent a Metal Roof? Absolutely

Did you know that venting underneath the roof surface can prevent problems with condensation, ice damming, and increase energy efficiency?  A ventilated system causes warmer air to move through the system and escape through the ridge while cooler air enters at the eave.  This phenomenon has tremendous benefits and an excellent payback.

CondensationArrowhead, Snow Brackets, Vented Roof

A brief lesson on condensation and dew point temperature:

Condensation occurs  when dew point is reached.  What  is dew point?  Dew point temperature is the point at which saturated air can no longer hold water in the form of vapor and it condenses into water droplets against a cool surface.  We’ve all witnessed this phenomenon when the air against a cold glass of ice water forms droplets on the outside of the glass.  The same thing can happen as warm vapor-filled air escapes up through our ceiling and into a cold attic or on to the back of a cold roofing product.  Ventilation provides a means for that water vapor to escape before it condenses in an attic or on the backside of a roofing product, like a metal panel.

How many of us have had that moment lying in bed staring at the ceiling and we see that brownish water spot on the sheetrock and think.  We think, ” ____(insert expletive here), a roof leak!”  But it might not be a “leak.”

Often water damage perceived as a roof leak is actually caused by condensation within the attic, walls, or underneath the roof material.  If water vapor accumulates in any of these areas it can condense to form water droplets, which will eventually cause serious damage to wood, insulation, sheetrock, etc.  In coastal areas, the damaging effects of water condensing under the metal panel is intensified by the corrosive nature of the humid air and salt.  That moist air needs a way to escape and one way to assist with this problem is by ventilating.

Ice Damming

Ice dams are formed in snow climates when warm areas of a roof cause snow and ice to melt.  After melting the water then runs down the roof to an area where the roof is very cold, re-freezing into ice.  Eventually enough water has frozen, forming a wall of ice which prevents water from running down the roof surface.  This water inevitably backs up and finds a way into the building.  Ice dams can also cause serious problems when they eventually break loose and damage gutters, roof penetrations, and possibly people and property below.

The solution to ice dams is to keep the roof temperature even, preventing warm and cold spots.  Without ventilation, eave overhangs tend to be very cold and roof areas above the living spaces within the building tend to be warmer.  This scenario lends to the formation of ice dams.  By venting underneath the roof surface, any warm air escaping the building can exit through the ridge while being replaced by cooler air entering at the eave.  This keeps the roof at an even temperature so that ice dams never form.

Although ventilation can help prevent the formation of ice dams it won’t prevent sliding snow which can still cause serious problems.  An engineered snow retention system should always be considered.

Energy Efficiencyvent a metal roof

If you have ever worked in an attic space on a hot summer day you know how miserable that is.  Obviously roofs get hot from the sun and that heat enters the building.  Metal panels as well as other roofing products radiate that heat to the surrounding air and materials.  If there is a vented air space underneath the roof material, then the heat exiting the material warms the surrounding air molecules.  The molecules rise, escape through the ridge and are replaced by cooler air entering at the eave.  This drastically decreases the heat that enters the attic space or building by as much as 50% according to studies done at Oakridge National Testing Laboratories.

This decrease in entering heat equates to savings in cooling costs.  Those same studies from the testing lab showed as much as a 25% decrease in cooling costs.  The resulting savings makes for an incredibly rapid payback to the cost of adding a vented space under the roof surface.  An added benefit is that we conserve our limited resources, ensuring  a better future for all of us and generations to come.

Doing It the Right Way

Many factors play into the design of a ventilation system including determining the height of the air space needed and the size of the input and exhaust.  Some rules of thumb when installing a ventilation system are:

  1. Intake and exhaust should always exceed the size of your vented space
  2. Intakes and exhaust should be increased in size to accommodate for losses  to function created by screening as screening can significantly reduce airflow.
  3. The vented air space under the roofing product should be sized according to rafter length and roof slope.
  4. Steeper slopes tend to vent better than lower slopes and shorter lengths also tend to vent better than longer lengths.  So, steep short lengths require less of a ventilation space than low sloped long lengths.
  5. Cut up roofs with dormers and valleys also create challenges when designing ventilation because eave intake areas are limited.

When designing ventilation for your roof you should consult with an expert to get a properly designed system.

To sum it up, metal roofs benefit in many ways from a ventilation system.  A metal roof shouldn’t be installed without first giving these benefits consideration

Terry Anderson is CEO of Anderson Associates Consulting, Inc. and President of T.R.A.-MAGE, Inc.
He gives credit to Dr. William Miller of Oak Ridge Testing Laboratories and Dr Nigel Cherry of Redlands Testing Lab, London, for their work on ventilation.

Picture – Nomograph 4-21 from “Concrete and Clay Tile Roof Design Criteria Manual for Snow and Cold Regions” showing the height needed for air space based on slope and length of rafter.

Picture – “Ice dams and eave ice.jpg” showing a vented roof system in the background and a non vented roof system in the foreground.

By: Terry Anderson

Published: Metal Construction News January 9, 2012

Shed it or Keep it – Making Decision about Snow & Ice on Metal Roofs

snow retention, metal roofs

By: Terry Anderson

Published: Architectural West | May/June 1999

snow retention, shed it or keep it, snow and iceHow would you answer this question?  If you are like most roofing consultants or architects, you would probably say, “Shed the snow and ice.”  This is the correct answer in some cases, but a few things must be considered when making this decision.  If you decide to allow the snow to shed, you must take into account the following:

  • Penetrations through the roof should be positioned near the top of the roof, within 5’ of the ridge line.  Why?  If snow and ice is allowed to move, its force will break off any penetrations through the roof.  Moving forces are minimized the higher up the slope you go.  This design change alone will make a big difference by stopping penetration damage from occurring.
  • People and property should not be allowed in areas of shedding snow and ice.  Why?  In the past two years there have been at least three deaths in Utah and Colorado caused by sliding snow and ice off roofs.  These deaths could have been prevented if people had not been in areas of sliding snow and ice or if the snow and ice had not been allowed to move.  Even professionals such as architects and consultants are not always alert to the danger to people and property.  One architect’s Maserati was crushed by falling ice and snow.  He got it repaired, but made no changes to the roof.  The same thing happened the next year!
  • cold roof system, proper roof ventilationDormers should not be used close to the eave line when the ridge height of the dormer is much lower that the ridge height of the building.  Why?  Snow loads coming down on the main roof are much greater than loads sliding down from a dormer.  Therfore, the snow and ice come through the small valley and do damage to the dormer valley and the roofing product on the dormer.
  • No snow retention devices should be used on standing seam metal roofs.  Why?  Standing seam metal roofs are made to expand and contract with temperature changes during the day.  This expansion takes place up and down the metal sheet.  Clips are used in the standing seam, rather than nails through the sheathing because this movement.  Clips allow for the expansion without causing holes to become slots and creating leak problems.  Attachment through the panel is only done in one location, either at the ridge or eave.

If you glue snow brackets on a roof when it is above 40°, allow a 30 day cure time with temperatures above 40, and the surfaces of the roof and snow bracket are both clean, then the roof may hold snow on the brackets may not pull off.  However, if temperatures drop, cure time is not allowed, or the surfaces are dirty, the bracket and snow will come off.

snow and ice, snow retention

When the snow bracket is installed correctly, there is still the potential for the whole roof panel to come off.  Consider this:  A 120 lb. per square foot snow load being held by two or three screws through a panel on a 30’ run of roof.  This is incredible weight to put on a few screws.  This is why whole panels sometimes slide off the structure, as happened in the ski resort of Whistler, Canada.

Be careful about letting snow and ice built up on an outside bearing wall.  Why?  Often, when you hear about building collapsing during a snowstorm, a large amount of snow and ice has fallen off the roof’s eave edge and then fallen back against the outside bearing wall, collapsing the building.  The weight of the snow and ice, which came off of the roof, is the contributing factor to the collapse.

Gas line meters should not be installed on the side of the building where snow is shed.  Why?  On a house in Park City, Utah, snow and ice slide slowly down the roof.  It eventually curled under the eave and then broke off.  When it fell, it hit the gas line going into the house.  This shot gas into the house and within a short time, the house exploded into a fire ball.

What would I, as a roofing consultant, do if I were designing a roof a in a heavy snow area and the owner wanted a metal roof?

I would slope the roof to about 5:12 so that I could keep the snow on the roof and prevent the problems previously noted.  This would also give me more architectural freedom in my design.  I would then have access round the building and not worry about people and property damage.  By keeping the snow on the roof, I could doll up the house with dormers, eyebrows, walkways etc… to give it the look I want.

I would design a cold roof system and use the snow as an insulated blanket.  This would stop ice dams and also allow me to vent the attic space.  This also eliminates any water vapor barrier below the insulation.  If you do this, remember that air intake and exhaust size are very important to be sure that enough air is drawn from eave to ridge.  Check charts, such as the ones in WSRCA & NTRMA Cold Roof Manual.

To hold the snow on the roof, I would use a flat seam metal roof.  This allows me to attach a snow bracket through the metal without worrying about metal movement caused by expansion and contraction.  It also prevents degrading the flat seam.

The snow retention system I would use would be designed and engineered.  I would choose a manufacturer that tested its brackets to a fail point on a flat seam metal roof.  The system would have brackets form eave to ridge to hold all the snow on the roof and not let it move.  Having a system like this is similar to a snow cave in that is also insulates the building.

shed it or keep it, snow retention

I would also consider snow fences above any walkway where layered snow might be a problem.  This would be in addition to snow brackets throughout the roof system.  Snow fences are only necessary and a good idea in areas where layers of snow might slip off of each other onto areas where there are people, vehicles, decks, etc.

The above system has had great success in Lake Tahoe, Calif., Beaver Creek, Colo., Breckenridge, Colo., Sun Peaks, Canada, Grand Targhee, Wyoming and many more.   If you are designing a roof in cold and snowy regions, a copy of Western States Roofing Contractors Association’s new manual on sloped roof application in heavy snow areas is worth the nominal cost.

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