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What Makes Our Solar Tile Hooks Unique?

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 layout for secure attachment to the structural member of the roof. With our unlimited FREE engineered layout on all your projects, we guarantee our high quality extruded aluminum Solar Tile Hook is made of the highest quality for superior strength.

Our high-quality material extruded aluminum and 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. The new tile hook allowed for fast and easy installation. It also helps increase the longevity of our micro-inverters. *Also available in black anodized.

 Tile Mount Hook

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

Tile Mount Hook3We offer a plethora of installation materials and resources to make experience as simple as plan, purchase and install.

TRA’s cutting-edge tile Hooks are:

  –  made of corrosion-resistant extruded aluminum

  –  quick and easy to install

  –  require no cutting

  –  require no special flashing

Solar 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.

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!

Tile Mount Hook2Solar Rail Plus

                                                                                                             Works With Our New Rail Solar Plus!

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
  • Requires no special flashing

Materials/Finishes

  • 6005A-T6 Aluminum / 6005A-T5 Aluminum
  • Mill finish
  • Black Anodized (upon request)

Testing

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

WE DO CUSTOM SOLAR MOUNTING

At TRA Snow and Sun, we engineer and layout each project 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.

We can design your awning to work with a variety of application. Just give us your project details & we will design your Mounting Solution to fit your project. For more information call Gary Heslington at TRA Snow and Sun at 800-606-8980, ben@trasnowadsun.com, or visit: https://trasnowandsun.com/solar-mounting/

Universal Solar Tile Hook made to Fit Most Rails

 twiss-residence-hurricane-ut-progressive-power-solutions-tile-mount

What Makes Our Universal Solar Tile Hook Unique?

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


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

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. All types of 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. Click here to contact us for an estimate and to begin your Universal Solar Tile Hook plan today!

Universal Solar Tile Hook

Universal 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

–   Increase the longevity of our micro-inverters

Materials/Finishes

–   6005A-T6 Aluminum / 6005A-T5 Aluminum

–   Mill finish

–   Black Anodized (upon request)

Testing

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

WE DO CUSTOM SOLAR MOUNTING

At TRA Snow and Sun, we engineer and layout each project 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.

We can design your awning to work with a variety of application. Just give us your project details & we will design your Mounting Solution to fit your project. For more information contact Gary Heslington at TRA Snow and Sun at 800-606-8980, gary@trasnowadsun.com, or visit: https://trasnowandsun.com/solar-mounting/

Solar Tile Mount Solution

 twiss-residence-hurricane-ut-progressive-power-solutions-tile-mount

What Makes Our Solar Tile Mount 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 Mount, there’s no cutting required, saving you time on your project. Our Solar Tile Mounts are available for low, medium, and high profile tile roofs, and are adjustable up to six inches for easy layout for secure attachment to the structural member of the roof. With our unlimited FREE engineered layout on all your projects, we guarantee our high quality extruded aluminum Solar Tile Mount are made of the highest quality for superior strength.

Our high-quality material extruded aluminum and 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. The new tile hook allowed for fast and easy installation. It also helps increase the longevity of our micro-inverters. *Also available in black anodized.

 Tile Mount Hook

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

Tile Mount Hook3We offer a plethora of installation materials and resources to make experience as simple as plan, purchase, and install.

TRA’s cutting-edge tile mounts are:

  –  made of corrosion-resistant extruded aluminum

  –  quick and easy to install

  –  require no cutting

  –  require no special flashing

Solar mounts 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.

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 Mount plan today!

 

Tile Mount Hook2Solar Rail Plus

                                                                                                             Works With Our New Rail Solar Plus!

Solar Tile Mount

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

Materials/Finishes

  • 6005A-T6 Aluminum / 6005A-T5 Aluminum
  • Mill finish
  • Black Anodized (upon request)

Testing

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

WE DO CUSTOM SOLAR MOUNTING

At TRA Snow and Sun, we engineer and layout each project 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.

We can design your awning to work with a variety of application. Just give us your project details & we will design your Mounting Solution to fit your project. For more information call Gary Heslington at TRA Snow and Sun at 800-606-8980, ben@trasnowadsun.com, or visit: https://trasnowandsun.com/solar-mounting/

The No Cutting, Time Saving Solar Tile Mount

Solar Tile Mount

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 Mount, there’s no cutting required, saving you time on your project. Our Solar Tile Mounts are available for low, medium, and high profile tile roofs, and are adjustable for secure attachment to the structural member of the roof. We guarantee a variety of tile mounts, superior strength, and the option for custom made designs.

What Makes Our Solar Tile Mount Unique?

Our high-quality material extruded aluminum and 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 and 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. The new tile hook allowed for fast and easy installation. It also helps increase the longevity of our micro-inverters.

Tile Mount Hook

Tile Mount Hook3

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

We offer installation materials and resources to make the experience as simple as plan, purchase and install.

Solar Tile Mount are:

  • 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
  • Requires no special flashing

Materials/Finishes

  • 6005A-T6 Aluminum / 6005A-T5 Aluminum
  • Mill Finish
  • Black Anodized (upon request)

Testing

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

WE DO CUSTOM SOLAR MOUNTING!

Tile Mount Hook4 Sol-Up-St-George-7-Solar-Awning

At TRA Snow and Sun, we engineer and layout each project 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.

We can design your awning to work with a variety of application. Just give us your project details & we will design your Mounting Solution to fit your project. For more information call Ben Anderson at TRA Snow and Sun at 800-606-8980, ben@trasnowadsun.com, or visit: https://trasnowandsun.com/solar-mounting/

OSHA, Silica Dust and the Roofing Contractor

 

 

tile cutting

 

TRA Snow and Sun makes products specifically designed to help with solar mounting and flashing needs on tile roofs and we are always concerned about safety for building owners and the roofing contractors who install our products.

Recently a new Occupational Safety and Health Administration issued a “final rule to curb lung cancer, silicosis, chronic obstructive pulmonary disease and kidney disease in America’s workers by limiting their exposure to respirable crystalline silica.” This new ruling will impact all contractors who cut tile roofing products.

Silica is a natural mineral present in large amounts in many construction materials like concrete roof tiles manufactured in the US by companies. It is broken into very fine dust (also known as Respirable Crystalline Silica or RCS) during common tasks such as cutting for valleys, hips, and when installing solar mounting.

Regularly breathing in this dust can cause serious lung disease like silicosis and lung cancer. Hundreds of deaths have been associated with silica dust absorbed into the body in this way.

OSHA’s new standards, taking effect June 23, 2016 (with a one year implantation requirement for construction work), will require roofers to either use water or ventilation to manage dust or provide respirators in high exposure areas: The Key Provisions of the ruling:

“Reduces the permissible exposure limit (PEL) for respirable crystalline silica to 50 micrograms per cubic meter of air, averaged over an 8-hour shift.

Requires employers to: use engineering controls (such as water or ventilation) to limit worker exposure to the PEL; provide respirators when engineering controls cannot adequately limit exposure; limit worker access to high exposure areas; develop a written exposure control plan, offer medical exams to highly exposed workers, and train workers on silica risks and how to limit exposures.”

TRA Snow and Sun supports efforts to protect the health of roofers, however, using a wet saw on a roof means other risks including danger from hoses on the work surface and slip and fall hazards caused by water. For this reason, we support testing and respirators instead and a further review by OSHA.

For more information on this issue visit the National Roofing Contractors’ Association press release on this ruling.

Remember, also, that we make solar tile mounts that are installed WITHOUT CUTTING tiles. (See more about that here.)

VersaFlash: The Must Have ‘Roofer’s Duct Tape’

 

SolarFlash (2)

TRA Snow and Sun has something every roofer needs: VersaFlash.  It’s a must-have for all roofers. We call it the “roofer’s duct tape”. Here’s why you need it for every roofing project.

VersaFlash: 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, but there’s nothing proven to work better than TRA Snow and Sun’s VersaFlash: flexible aluminum flashing that attaches down with a butyl. 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.

Types of VersaFlash

Some types of VersaFlash are meant just for concrete and clay tile roofing only, while others are effective for all types of roof. Here’s a breakdown of VersaFlash offered by TRA Snow and Sun.

Why Choose VersaFlash?

Simply put, VersaFlash 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 Aluminum and Copper VersaFlash — here’s why once you choose it, you’ll never roof without it again.

Versatility

We don’t call it the “roofer’s duct tape” for nothing. VersaFlash is made of flexible, stretchy material that can be used to seal roof-to-wall abutments, chimneys, and basically anything you can think of. It’s very easy to work with so you can get the job done right the first time.

Conforms to Many Roof Types

A roofer looking for a go-to roofing adhesive need look no further than VersaFlash. Other than the HD Aluminum Roll (clay and concrete) we offer, VersaFlash will conform to most types of roofs including, but not limited to:

  • Asphalt Shingles
  • Wood Shingles and Shakes
  • Slate
  • Metal (copper, steel, aluminum, tile)
  • Fiber Cement

Durability

Leave all of your re-flashing worries behind with VersaFlash. It’s highly durable, flexible, and weather resistant. It stretches to a maximum of 33 percent, conforms easily to roof surfaces, and installation is easy. If you want a durable roofing adhesive that won’t give you problems down the road, VersaFlash is the gold standard. On top of it all, TRA Snow and Sun offers a 25-year limited warranty.

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. Give us a call today at 877-290-8669 for more details, and check out all of our flashing products at trasnowandsun.com.

The No Cutting, Hassle Free Solar Tile Mount

Solar Tile Mount

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 Mount, there’s no cutting required, saving you time on your project. Our Solar Tile Mounts are available for low, medium, and high profile tile roofs, and are adjustable for secure attachment to the structural member of the roof. We guarantee a variety of tile mounts, superior strength, and the option for custom made designs.

What Makes Our Solar Tile Mount Unique?

As mentioned above, TRA Solar Tile Mounts are easy to install and don’t require any cutting. Made of high quality, extruded aluminum that diverts the mount around the tile instead of going through it. With not cutting, this type of mount will not compromise the strength of the customer’s tile. In addition, mounts are adjustable up to six inches for easy layout planning and to make installation easier.

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

Tile Mount Hook3We offer a plethora of installation materials and resources to make experience as simple as plan, purchase, and install.

TRA’s cutting-edge tile mounts are:

  –  made of corrosion-resistant extruded aluminum

  –  quick and easy to install

  –  require no cutting

  –  require no special flashing

Solar mounts 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.

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 Mount plan today!

TIME FOR A SOLAR MOUNTING CHANGE

Solar-tile-mount-fastening-on-flat-tile-300x300

ARE YOU TIRED OF CUTTING TILE WHEN INSTALLING SOLAR MOUNTING?

Solar on tile roofs is become increasing popular in many parts of the US as the insulative and life cycle cost of tile combined with the benefits of converting sunshine into electricity is recognized. There are markets in Arizona and parts of California where tile makes up 90% of the systems installed. As the population continues to grow throughout, so does the diversity of preferences of roofing applications. As we start to see more and more clay and concrete tile roofing solutions, in some cases installing solar on  tile presents some challenges that are not inherent with the standard shingle roofs. As demand for tile solar mounting increases so does the time spent on cutting tile.

YOUR SOLAR MOUNTING SOLUTION …

Our Solar Tile Mounts Require NO CUTTING Of The Tile & They Are Adjustable Both Horizontally & Vertically With A Height Up To 6”. They Can Be Attached To The Truss Or Rafter With No Tile Cutting Needed! 

NO TILE CUTTING INVOLVED IN THE INSTALLATION PROCESS

Tile Mount Hook

Our high-quality material extruded aluminum and 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. The new tile hook allowed for fast and easy installation. It also helps increase the longevity of our micro-inverters. *Also available in black anodized.

Tile Mount Hook2Tile Mount Hook3

The Perfect Foundation for Solar Systems when it comes right down to it, a solar system is only as good as its mounting structure. That’s why when you need the highest quality roof mounting accessories and fastening systems, you turn to TRA Snow and Sun. Built to last. Built to be reliable. Each and every component in our solar tile mount creates a perfect foundation for your solar systems.

Solar Tile Mount

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

Materials/Finishes

  • 6005A-T6 Aluminum / 6005A-T5 Aluminum
  • Mill finish
  • Black Anodized (upon request)

Testing

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

WE DO CUSTOM SOLAR MOUNTING

In making the preferred distance needed to provide the necessary spacing of the micro-inverters and modules so that they are kept at a relatively low temperature, increasing their longevity, while bringing down the costs due to equipment failure. Installation was fast, meaning less cost passed on to the customer.

Tile Mount Hook4 Sol-Up-St-George-7-Solar-Awning

At TRA Snow and Sun, we engineer and layout each project 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.

We can design your awning to work with a variety of application. Just give us your project details & we will design your Mounting Solution to fit your project. For more information call Ben Anderson at TRA Snow and Sun at 800-606-8980, ben@trasnowadsun.com, or visit: https://trasnowandsun.com/solar-mounting/

The Types of Roofing Materials

There are many types of roofing materials, each having different advantages and disadvantages depending on what the homeowner is looking for, and the region of the country you live. Take into consideration the factors that influence your roof, and which material will best suit you.

Things to Consider When Choosing Roofing Materials

If you’re building a new home, or replacing the roof on your existing one, consider these things before choosing the roofing material:

• What types of weather conditions are common in your area? Rain, snow, hurricanes, or tornadoes should all be considered.
• What is the cost? Make sure the roofing material you get is worth the cost.
• What is the slope of the roof? Some roofing materials are better suited for slope than others.
• Will the roof fit in with the style of your home?

Asphalt Composition Shingles

Asphalt Roofing shingles
The most popular roofing material for homes in the US is asphalt. Compared to metal roofing, it will wear and will need to be replaced over time.

• These shingles will either be made with organic paper fiber mat or fiberglass. The fiber mat is more resistant to cold weather and wind, while the fiberglass will be more fire and moisture protected.
• These shingles can be used on low to steep sloped roofs.
• There are both the traditional 3-tab shingle appearance or the thickly laminated architectural shingles for homes.

Metal Roofing

New blue grey roofing from stainless metal plate
Metal roofing is more expensive than the more common asphalt shingles, but will last longer and is more resistant to wind damage.

• There are many types of materials that can be used in metal roofing, including steel, aluminum, copper, and zinc.
• The metal roofing can be installed in sheets, or as shingles.
• Metal roofs are very durable, able to withstand weather conditions, fire, and wind.

Metal roofing is available for steep or low sloped roofs. While more expensive than asphalt, the cost of metal roofing ranges from moderate to expensive.

Concrete Tile

Roof Inclined

Concrete tiles are more expensive than asphalt and metal, but their life-cycle cost is dramatically lower because the roof won’t need replacement every 15 – 20 years. In addition to this, they are fire resistant and attractive.

• Buildings built according to standard building codes after 1980 can withstand the weight of concrete tile.
• Concrete tiles are made from a sand and cement mixture. They can be designed to look like wood shakes, slate, or clay tiles.
• There are many colors available
Concrete tiles have little maintenance but can break under certain conditions.

Clay Tile

Orange terracotta old style roof tiles pattern

Clay tiles may break easily when dropped, but once on the roof they are not only fire resistant, but can last a long time and are aesthetically pleasing:

• Clay tiles are made by firing in a kiln.
• These roofs have the traditional Spanish and Italian look, giving a unique appearance.
• The clay is a natural material, making this roofing eco-friendly.
• Clay tiles require little maintenance, but can be brittle and break in the wrong conditions.
• Roofs with moderate to steep slopes can use clay tiles.
• Compared to other roofing materials, clay tiles are expensive.

Plastic Polymer

These roofing shingles are made of synthetic material.

• These can be made from recycled materials, and be recycled when replaced.
• Moderate to steep slope on roofs can use plastic polymer shingles.
• These shingles are long lasting and are fairly low maintenance.
• Compared to other roofing materials, plastic polymer are moderate in cost.

Wood Shake

Wooden roof Shingle texture

Wood shakes are made from rot resistant woods, and can be treated to be more resistant to fires:

• The most common material used for wood shakes is cedar for its rot resistant quality.
• Wood shakes are natural looking, and can be thick or sawn depending on the roof.
• Requires more maintenance than other common types of roofing material.
• Moderate or steep sloped roofs can use wood shakes.

These are just a few of the most popular types of roofing materials. Consider where you live, and other factors when choosing the roofing material for your home.

When looking to install snow guards, solar panel systems, or ventilation systems on your roof, TRA Snow and Sun products that work on all roof types, making it easy for you.

Concrete Tile Excels in Snow Country; Europe Shows How

By: Terry Anderson

Published: Interface | February 1997

Oslo, concrete tile roofs

Ruined penetration pipes, torn off gutters, broken tiles, damage to property below roofs and various other snow- and ice-related problems on concrete tile roofs are just a few of the complaints I have repeatedly received since I began roof consulting in the western United States.   After researching the problems in the U.S. and discovering that there were few effective solutions, I determined to look beyond our borders.  The solutions to all of these problems were found across the Atlantic Ocean in Europe, where concrete tile is both popular and performs well in snow and ice areas.

Monier Inc., the largest U.S. manufacturer of concrete roof tile, referred me to their parent company, Redland PLC, headquartered in England, I studied tile roofs in various parts of Europe, including England, Germany and Norway.  In the vicinity of Oslo, Norway, where winters are long and severe, tile roofs and were inspected in the heaviest snow areas.

In Norway, tile manufacturers from Zanda arranged a meeting for me with the head of the information division of the Norwegian Building Research Institute (the equivalent of ICBO or BOCA) where they were queried regarding the overwhelming choice for concrete roof tile in their country.  They opined that Norwegians are more concerned about life cycle cost, energy efficiency and fire ratings than Americans appear to be.  Concrete roof tile has fit their stringent requirements best.  Asphalt shingles were used to a small degree after World War II because of their low cost, but were replaced by tile again when the population could afford a longer lasting product.

Research in Germany indicated that most pitched roofs utilize concrete tile.  The pitches ranged from 10:12 in the lower land of Frankfurt but changed to 5:12 in the Austrian Alps, a practice opposite what I generally see in the U.S.

The standard practice in America is to increase pitch as you travel upward in elevation, as evidenced by A-frame cabins and steeper pitched roofs.  Why do pitches of roof drop from 10:12 in low snow areas to 5:12 in high snow areas in Europe?  It was discovered that the Germans and Norwegians actually want a “snow blanket” on their roofs.

I was familiar with the idea of using snow as an insulator.  Years ago, as a Scoutmaster, I would take my troop to the Klondike Derby (a winter campout held in February).  Some of the scouts would build snow eaves to sleep in.  Others brought tents.  The ones who slept in the eaves were warm.  The boys in tents often slept little because of how cold they were.  Obviously, the snow and ice of the eaves acted as an insulator and the temperature was therefore much warmer than that in the tents.  The effort to use the insulative properties of snow on roofs in rural areas of Norway and Germany was astounding.  I saw centuries-old stone and slate buildings with low pitched roofs that actually had boulders placed on the roof to help hold the snow in place!

Snow and ice damage is almost non-existent in Norway and Germany.  Designers and roofers use a double-vented cold roof system to keep the temperature just below the tile at 32 degrees.  This creates compacted snow and stops icicles and ice dams caused by heat loss from the building which melts the snow.  Working like a fireplace flue, cold roof systems draw cold air from outside through the roof soffit.  This air mixes with warm air in the attic and is vented out through a continuous ridge vent.  This mixed air in the attic is about 50 degrees on average during the winter.

To get the air under the tile close to 32 degrees, it is again vented under the roof tiles using 2×2 vertical battens.  This draws air from eave to ridge, venting it out.  When spans from eave to ridge are very long, vents are also placed midpoint.  Metal snow brackets are slipped over the tiles, interlocking between courses.  Some tile manufacturers from snow stops into the tiles themselves.  These hold the snow in place, prevent it from sliding and thereby avoiding damage to the tile, penetrations, property and people.

snow retention, Oslo

Underlayments used in Germany were limited generally to one layer of 20-pound felt over the roof sheathing and 2 x 2 vertical battens below.  Many roof in Norway had underlayment unfamiliar to me.  The decks were a tempered hardboard with an asphalt shingle coating applied, acting as decking and underlayment.  Neither of the two roofing systems included a bitumen or ice-and-water shield product.

These tiles have affixed concrete snow stops. Note the vented system between deck and tile, at right.

While studying in Germany I discovered that Braas (which is part of the Redland Braas Building Group) provides roofers with hardbound roof application books which include details like how many snow brackets to use and provide layout charts based on snow load and degrees of pitch.  Because of this support and the demand for tile, the majority of cold climate roofers in Europe are well educated about tile and know how to install it.

Today in these areas, architects specify concrete tile made with built-in snow stops or requiring metal snow brackets placed throughout the roof from ridge to eave.  In some cases, snow fences are also used.  The purpose of these fences is to prevent avalanching that sometimes occurs with layered snow.  I also found that because of the double vented cold roof system, ice was greatly reduced.  Copper gutters were widely used without any concern for them being torn off.  I found no evidence of bent penetration pipes or broken tile in valley, nor of any damage from snow and ice slippage.  All of these conditions have been pervasive on tile roofs in the mountains of the western United Stat.es

Much of this “old world knowledge” was brought back to Utah and has been used successfully for the past two winters.  Europeans obviously worked through their snow and ice concerns centuries ago and have developed a tile roof system that will perform for centuries more.  Since their combination of low slope roofs, cold, vented attics and engineered place of snow brackets performs so effectively, the construction industry in the United States should take careful note.

snow retention

[gview file=”https://trasnowandsun.com/wp-content/uploads/2013/06/Concrete-Tile-Excel-in-Snow-Country-Europe-Shows-How-interface_feb97.pdf”]