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<h1 class="firstHeading">Snow Guards (Snowguards) and Snow Rails</h1>
<div class="bodyContent">
<div class="siteSubtitle" style="margin-bottom: 15px;">Questions? Need help finding a specific item? <a href="tel:1-800-474-7570">Call us</a> or <a href="mailto:sales@bestmaterials.com">email us</a>! </div>
<div class="toc">
<div class="tocContainer">
<ul>
<li><a href="#Pricing" title="Snow Guard Product Details and Pricing">Snow Guard Product Details and Pricing</a></li>
<li><a href="#Product Options" title="More Product Options">More Product Options</a></li>
<li><a href="#Glacier" title="Heavy Duty Snow Guard by Glacier">Heavy Duty Snow Guard by Glacier</a></li>
<li><a href="#Mini-Snow-Guard" title="Mini Snow Guard Glacier">Mini Snow Guard Glacier</a></li>
<li><a href="#Snow-Rails" title="Snow Rails, By Berger">Snow Rails, By Berger</a></li>
<li><a href="#Calculations" title="Snow Loads, Calculations and Snow Guards">Snow Loads, Calculations and Snow Guards</a></li>
</ul>
</div>
<div class="tocContainer">
<ul>
<li><a href="#How-Do-Work" title="How Do Snow Guards Work">How Do Snow Guards Work?</a></li>
<li><a href="#Installation" title="Typical Snow Guard Installation and Snow Guard Manufacturer Recommendations">Typical Snow Guard Installation and Snow Guard Manufacturer Recommendations</a></li>
<li><a href="#Metal-Panels" title="Typical Snow Guard Installation Procedures for Installation on Metal Panels">Typical Snow Guard Installation Procedures for Installation on Metal Panels</a></li>
<li><a href="#Glacier-Installation" title="Glacier Installation Procedures for Mechanical Installation on Shingles">Glacier Installation Procedures for Mechanical Installation on Shingles</a></li>
</ul>
</div>
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<h2 class="article-level-1">Overview</h2>
<p class="introP">We're proud to provide Snow Guards and Snow Rails from all the industries leading snow guard manufacturers including the <a href="SearchResult.aspx?Manufacturer=124" title="Berger Building Products">Berger</a>
Clamp-on and Snow Rail snow retention systems, <a href="SearchResult.aspx?Keywords=snow+defender" title="Levis Snow Defenders">Levis Snow Defenders</a>,
<a href="SearchResult.aspx?Manufacturer=89" title="MM Glacier Products">MM / Glacier</a> clear Snow Guards, <a href="SearchResult.aspx?Manufacturer=156" title="Snow Shield Clamp On Snow Guard">Snow Shield</a> and
<a href="SearchResult.aspx?Manufacturer=155" title="TRA Snow and Sun">TRA Snow and Sun</a>. All have a lifetime warranty and are engineered to prevent damage or injury caused by avalanching snow and ice while enhancing the
beauty of any roofing system.
<a href="detail.aspx?ID=17076" title="Spanish Tile Snow Guard"><img alt="FR531 Spanish Tile Snow Guard - FitRite #531 Snow Guard for Spanish Tile Roof. PLEASE EMAIL FOR CURRENT PRICING. (UPS shipping only)" src="images/SNOW-FR531-large.jpg" width="119" height="115" align="right" border="0"></a>
We have snow guards for all types of roofs including: metal roof snow guards, shingle roof snowguards, tile roof snow guards, membrane roof snow guards, snow rail systems, cedar shake roof and slate roofs snowguards. You'll
find our Snow Guard / Snow Rail quick shipping and discount prices are unbeatable.</p>
<p class="ConnectWithUs" style="background-color:lightyellow;padding:5px;font-style:italic;font-size:.95em;">Best Materials stocks all the key materials you need and can ship quickly anywhere. We specialize in suppling large or
small quantities direct to any site at the best prices. Email sales@bestmaterials.com for a quote on any project.</p>
<h2 class="article-level-1" id="Pricing">Snow Guard Product Details and Pricing:</h2>
<a href="SearchResult.aspx?categoryid=1174" title="Plastic Snow Guard"><img alt="All Types of Plastic Snow Guards for Metal Roofing" src="images/snowguard.jpg" align="right" border="0" width="100" height="75"></a>
<p><span class="redCTA">-- Special Sale --</span></p>
<ul class="wikicopyli">
<li><a href="detail.aspx?ID=14979" title="Heavy Duty Snow Guard by Glacier">Heavy Duty Snow Guard by Glacier</a> <span class="redCTA">-- As low as $3.25</span></li>
<li><a href="detail.aspx?ID=14980" title="Mini Snow Guard by Glacier">Mini Snow Guard by Glacier</a> <span class="redCTA">-- As low as $1.65</span> (fits narrow-space areas)</li>
<li><a href="SearchResult.aspx?categoryid=1202" title="Asphalt Shingle Snow Guards">Asphalt Shingle Snow Guards</a></li>
<li><a href="SearchResult.aspx?categoryid=1169" title="Clamp On Snow Guard">Clamp-On Snow Guards for Standing Seam Metal Roofs</a></li>
<a href="detail.aspx?ID=16302" title="Snow Guard Clamp"><img alt="Snow Guard Clamp" border="0" src="images/snow-guard-clamp-on.jpg" align="right" width="94" height="72"></a>
<li><a href="SearchResult.aspx?categoryid=1243" title="Copper Roof Snow Guards">Copper Roof Snow Guards</a></li>
<li><a href="SearchResult.aspx?categoryid=1252" title="Corrugated Metal Roof Snow Guards">Corrugated Metal Roof Snow Guards</a></li>
<li><a href="SearchResult.aspx?categoryid=1244" title="Designer Series Snow Guards">Designer Series Snow Guards</a> (also see catalog items)</li>
<li><a href="SearchResult.aspx?categoryid=1209" title="Flat Metal Roof Panel Guards">Flat Metal Roof Panel Guards</a></li>
<li><a href="SearchResult.aspx?categoryid=1174" title="Plastic Snow Guards">Plastic Snow Guards</a></li>
<li><a href="SearchResult.aspx?categoryid=1203" title="Slate Roof Snow Guards">Slate Roof Snow Guards</a></li>
<a href="SearchResult.aspx?Keywords=SG-1+Clamp+On+Snow" title="Snow Guard Clamp"><img alt="Snow Guard Clamp" border="0" src="images/snow-guard-clamp-on2.jpg" align="right" width="99" height="78"></a>
<li><a href="SearchResult.aspx?categoryid=1173" title="Snow Rail Systems for Metal Roofs">Snow Rail Systems for Metal Roofs</a></li>
<li><a href="SearchResult.aspx?categoryid=1244" title="Tile Roof Snow Guards">Tile Roof Snow Guards</a></li>
<li><a href="PDF_Files/tile-roof-snow-rails.pdf" title="Tile Roof Snow Rail Options" target="_blank">More Tile Roof Options</a></li>
</ul>
<h3 class="article-level-2" id="Product Options">More Product Options:</h3>
<a href="SearchResult.aspx?categoryid=1202" title="Snow Guard"><img alt="Snow Guards fo For Slate and Asphalt shingled roofs" src="images/snow-sgc100.jpg" align="right" width="91" height="133" border="0"></a>
<ul class="wikicopyli">
<li><a href="PDF_Files/Snow-Retention-Systems-berger.pdf" title="Berger Catalog of Additional Items" target="_blank">Berger Catalog of Additional Items</a></li>
<li><a href="SearchResult.aspx?Manufacturer=124" title="Berger Building Products">Berger items in Webstore</a></li>
<li><a href="PDF_Files/TRA-MAGE-Snow-Products-Catalog.pdf" title="TRA Catalog of Additional Items" target="_blank">TRA Catalog of Additional Items</a></li>
<li><a href="SearchResult.aspx?Manufacturer=155" title="TRA Snow and Sun Items">TRA items in Webstore</a></li>
</ul>
<a href="SearchResult.aspx?categoryid=1173" title="Snow Guard Rail Systems"><img border="0" src="images/railsystems.jpg" align="center" alt="Snow Rail Systems for Metal Roofs" width="374" height="172"></a>
<p>Orders over 500 units qualify for special freight. Email us for a quote!</p>
<ul class="wikicopyli">
<li><a href="PDF_Files/catalog_snowguards.pdf" title="Snow Guard Full Catalog" target="_blank">Snow Guards</a>, Full Catalog of Options</li>
<li><a href="PDF_Files/catalog_railsystems.pdf" title="Snow Rail Catalog" target="_blank">Snow Rails</a>, Full Catalog of Options</li>
</ul>
<p>Snowguard Fastening: Glacier's Snow Guards are designed with an oversize footprint that provides a large bonding area for adhesive in stallation. Glacier's snow guards are approved for adhesive installation with with the
recommended construction adhesive sealants. (competitors designs have much smaller contact area and do not hold well). Or you can use both adhesive and fasteners if desired.</p>
<ul class="wikicopyli">
<li><a href="detail.aspx?ID=11225" title="Clear-25 Adhesive Sealant">CLEAR-25</a>: General use cost-effective structural sealant and adhesive (325 psi tensile)</li>
<li><a href="detail.aspx?ID=15733" title="SB-190 Adhesive Sealant">SB-190</a>: Super strong adhesive-sealant. Recommended as best by most snow guard manufacturer. (2000 psi tensile)</li>
</ul>
<p>How Much Adhesive: One tube of Sealant installs about 6-8 Heavy Duty Glacier guards and 17 to 20 of the Glacier Mini Guards.</p>
<p>Fasteners, if desired: Recommended is <a href="SearchResult.aspx?KeyWords=SMS8X" title="#8 HWH SMS Screw">#8 HWH SMS</a> together with an
<a href="SearchResult.aspx?CategoryID=625" title="EPDM Bond-Seal Washer">EPDM bond-seal washer</a>. More <a href="sealing_washer.aspx" title="Seal Washers">information on seal washers</a>.</p>
<p>Special / Custom snow retention layouts: Berger Building Products offers an
<a href="https://www.bergerbp.com/media/2035/berger_snow_guard_layout_calculator-5.xlsx" title="Layout Calculator Spreadsheet Tool" target="_blank">calculator spreadsheet tool</a> for help with layouts and quantities.</p>
<h2 class="article-level-1">More Info on Snow Guard Products:</h2>
<h3 class="article-level-2" id="Glacier">Heavy Duty Snow Guard by Glacier:</h3>
<a href="images/snowguard.jpg" title="Heavy Duty Snow Guard"><img alt="Heavy Duty Snow Guard by Glacier" src="images/snowguard.jpg" align="right" border="0" width="100" height="75"></a>
<p>Snow Guard Product: #<a href="detail.aspx?ID=14979" title="Snow Guard GSGT5P">GSGT5P</a>, Heavy Duty Snow Guard by Glacier. Made from Polycarbonate (Lexan). 4.5 inch on wide X 7.5 inch long with a 3 inch high guard. Design
for superior strength with adhesive applications.</p>
<p>Applications: Roofs including metal, EPDM, PVC, slate and asphalt shingles.</p>
<p>Specifications and Features:</p>
<p>The largest and strongest SnowGuard available on the market today. Made from super tough polycarbonate material for the greatest available performance and durability.</p>
<ul class="wikicopyli">
<li>With over 30 square inches of base coverage, the Glacier Snow Guard has surpassed the competition to assure the best possible holding and reliability.</li>
<li>4.5 inch Wide X 7.5 inch Long with a 3 inch High Guard.</li>
<li>U.V. Resistant.</li>
<li>Unique ledge design adapts to shingle type applications.</li>
<li>Three large structural ribs provide superior strength.</li>
<li>Exclusive waffle design tread on the bottom provides maximum holding power (using recommended adhesive sealants). This holding power is such that fasteners are not required -- eliminating penetrations and sources of leaks.
</li>
<li>Clear Glacier Snow Guards have low visibility.</li>
<li>Paintable to match roof colors.</li>
<li>14 pre-molded #8 screw cone head screw holes are provided for mechanical fastening.</li>
</ul>
<h3 class="article-level-2" id="Mini-Snow-Guard">Mini Snow Guard by Glacier:</h3>
<a href="detail.aspx?ID=14980" title="Mini Snow Guard"><img alt="Mini Snow Guard by Glacier" src="images/minisnowguard.jpg" align="right" border="0" width="100" height="75"></a>
<p>Snow Guard Product: #<a href="detail.aspx?ID=14980" title="MGSG01 Mini Snow Guard">MGSG01</a>, Mini Snow Guard by Glacier. Made from solid Polycarbonate (Lexan). 1.5 inch wide X 5 inch long with a 2 inch high guard.</p>
<p>Applications: Recommended for use in smaller areas and overhangs where the larger Snow Guard is not practical. Can be used on all types of roofs including metal, EPDM, PVC, slate and asphalt shingles.</p>
<p>Specifications and Features:</p>
<p>The Mini SnowGuards are the strongest of this type available on the market today. They are made from polycarbonate material for the greatest available performance and durability.</p>
<ul class="wikicopyli">
<li>Narrow footprint enables the MINI Glacier Snow Guard to fit where larger Snow Guards won't.</li>
<li>Exclusive waffle design tread on the bottom provides maximum holding power (using recommended adhesive sealants). This holding power is such that fasteners are not required -- eliminating penetrations and sources of leaks.
</li>
<li>Designed for overhangs and narrow valleys found on typical rooftops.</li>
<li>U.V. resistant.</li>
<li>Two oversized structural ribs for superior strength.</li>
<li>Clear Glacier Snow Guards are practically invisible on all roof types.</li>
<li>1.5 inch Wide X 5 inch Long with a 2 inch High Guard.</li>
<li>6 Pre-molded #8 screw cone-head screw holes are provided for mechanical fasteners (if desired).</li>
</ul>
<h3 class="article-level-2" id="Snow-Rails">Snow Rails, By Berger:</h3>
<p>Specifications:</p>
<ul class="wikicopyli">
<li><a href="PDF_Files/snowrail-E-rail-specs.pdf" title="E-Rail Specs" target="_blank">E-Rail</a> (2-rail system)</li>
<li><a href="PDF_Files/snowral-F-Rail-specs.pdf" title="F-Rail Specs" target="_blank">F-Rail</a> (accommodates up to 4 rails)</li>
<li><a href="PDF_Files/snowrail-S-rail-specs.pdf" title="S-Rail Specs" target="_blank">S-Rail</a> (low-profile, 1-rail system)</li>
</ul>
<p>Installation:</p>
<ul class="wikicopyli">
<li><a href="PDF_Files/snowrail-E-Rail-install.pdf" title="E-Rail Install" target="_blank">E-Rail</a> (2-rail system)</li>
<li><a href="PDF_Files/snowrail-F-rail-install.pdf" title="F-Rail Install" target="_blank">F-Rail</a> (accommodates up to 4 rails)</li>
<li><a href="PDF_Files/snowrail-S-rail-install.pdf" title="S-Rail Install" target="_blank">S-Rail</a> (low-profile, 1-rail system)</li>
</ul>
<h2 class="article-level-1" id="Calculations">Snow Loads, Calculations and Snow Guards:</h2>
<p><span class="redCTA">Important:</span> The number, location, spacing and attachment method is dependant on the "snow load". Snow loads vary with your location, roof design, seasons, rapid changes in weather and other factors.
If you have snow guards which come off, you need to review the snow load. Unbalanced Snow Loads and excessive Snow Build-Up can overload roofs. Good references are:</p>
<ul class="wikicopyli">
<li><a href="PDF_Files/US-ARMY-SNOW-LOAD-ROOFING.pdf" title="Snow Guard Technical Instructions" target="_blank">Commentary On Snow Loads</a>, by the U.S. Army Corps of Engineers.</li>
<li><a href="PDF_Files/FELDMANNpg24252627.pdf" title="Snow Load Calculations" target="_blank">Changes in Snow Load Calculations</a>, by B. Feldman.</li>
<li><a href="PDF_Files/Cold-Snow-Roof-Manual.pdf" title="Snow Roof Design Manual for Snow Areas" target="_blank">Roof Design for Snow Areas</a>. Excellent discussion of causes of ice dams / buildup and proper roof design.</li>
<li><a href="PDF_Files/ice-dam-info.pdf" title="Ice Dam Formation on Roofs and How to Prevent" target="_blank">Ice Dam Formation on Roofs and How to Prevent</a>. From University of Minn.</li>
<li>ASCE-7, America Society of Civil Engineers, "Minimum Design Loads for Buildings and Other Structures". This includes a formula that can be used to convert snow depth to weight.</li>
</ul>
<h3 class="article-level-2" id="How-Do-Work">How Do Snow Guards Work?</h3>
<p>Snow Guards can prevent damage or danger caused by avalanching snow and ice. Snow Guards are attached to the rooftop to allow snow and ice to drop off in small amounts or melt completely before falling to the ground. The
Glacier snowguards are designed not only for safety, but for a pleasing while being very cost-effective.</p>
<p>Snow guards are installed on roof surfaces to protect against snow and ice damage below. It especially important to install snowguards above: entryways, walkways, and gathering spots; parking lots and drive-through areas;
expensive landscaping; ground mounted mechanicals; on metal roofs; lower roofs; valleys and crickets; and gutters and roof protrusions, such as plumbing vents.</p>
<h3 class="article-level-2" id="Installation">Typical Snow Guard Installation and Snow Guard Manufacturer Recommendations:</h3>
<ul class="wikicopyli">
<li><a href="PDF_Files/snowguard-layout.pdf" title="Snowguard Layout Patterns" target="_blank">Layout Patterns</a></li>
<li><a href="PDF_Files/snowguard-install2.pdf" title="Snowguard Installation Instructions" target="_blank">Installation Instructions</a></li>
</ul>
<p>(Please see individual products for product specific installation).</p>
<p><span class="redCTA">Note: Best Materials is not responsible for determining the structural integrity or live load capacity of any roof on which Snow Guards will be installed. This shall be done by an licensed architect or
engineer. See Snow Loads and Calculations above.</span></p>
<p>All OEM's recommend <a href="detail.aspx?ID=15733" title="SB-190 Adhesive Sealant">SB-190</a> (VERY STRONG). But some use <a href="detail.aspx?ID=11225" title="Clear-25 Adhesive Sealant">Clear-25</a> or
<a href="detail.aspx?ID=21170" title="SB-170 Silicone Sealant">SB-170</a> structural adhesive sealants. SB-170 cures quicker, but is not nearly as strong and is more expensive. SB-170 is the only material which can be used
during cold temperature installations, and should be seen as s temporary adhesive until weather warms. SB-190 is strongest with 2000 PSI tensile (vs. 325 psi for Clear-25).</p>
<p>If you use SB-170 or Clear-25, you will need more snowguards to achieve the same snow holding power as with <a href="detail.aspx?ID=15733" title="SB-190 Adhesive Sealant">SB-190</a>.</p>
<p><span class="redCTA">If snowguards come loose, it indicates you have not installed enough Snowguards to sustain the snow load or melting snow conditions. It is not a failure of the adhesive system or the snowguards. If you
attached using SB-170, re-attach these with SB-190 in the Spring / warmer weather.</span></p>
<p>Use of adhesive only or adhesive plus fasteners is satisfactory for some applications with Glacier snow guards. Glacier recommends adhesive only.</p>
<h3 class="article-level-2" id="Metal-Panels">Typical Snow Guard Installation Procedures for Installation on Metal Panels:</h3>
<ul class="wikicopyli">
<li>The area that the Snow Guard will be installed must be clean from any surface contamination. Alcohol will clean the area and will dry quickly. Area must be dry for adhesives to bond properly.</li>
<li>Use a pencil to mark the area where the Snow Guard will be installed, no more than 12 inch from outside of exterior wall to help prevent ice dams. At the eaves on most roofs under 6/12 pitches, two staggered rows of Snow
Guards will be sufficient. Over 6/12 pitches, a third row must be added. If the distance from the roof edge to peak is greater than thirty feet, no matter the pitch, two additional rows of Snow Guards should be added. Add
Snow Guards to areas over doorways and around valleys for added protection. If unsure about location, placement, fastening or number of Snow Guards needed please
<a href="http://www.glaciersnowguard.com/contactus.php" title="Contact Glacier Snow Guards" target="_blank">Contact Glacier Snow Guards</a> technical support.</li>
<li>After marks have been made. Test fit the Snow Guard. Then apply a bead of adhesive to all ribs, edges and flat surfaces on the entire bottom of Snow Guard. Be sure to apply enough adhesive to fill all air gaps along the
ribs and flat surfaces. One tube installs about 6-8 Heavy Duty guards and 17 to 20 of the Mini Guards.</li>
<li>Press the Snow Guard firmly into place with the shingle ledge pointed up, above the mark made in step 2. Apply enough pressure so the adhesive flows into all the holes and around perimeter.</li>
<li>Optional Fasteners: If specified, install screws through pilot holes of choice in Snow Guard and metal roof. Screw must penetrate through purlin or support beam under metal roof panel. For most installations, two screws
which penetrate into the support beam must be used as a minimum. Installer shall determine proper length, size and number of screws necessary for required holding strength and torque. Four or more screws help full the metal
flat against the Snow Guard and provide even bonding of the adhesive to the metal.</li>
<li>Apply an additional small bead of adhesive around the perimeter of the Snow Guard to seal all edges. Be sure that adhesive came out of all holes, if not apply adhesive to these areas. Cover the top of any screws to seal
the penetration path.</li>
<li>Clean up any excess adhesive sealant with WD-40 (best) or Acetone or alcohol (caution: solvent materials are very flammable. Also, eye and skin protection should be used).</li>
<li>Allow enough time for the adhesive sealant to fully cure. <a href="detail.aspx?ID=11225" title="Clear-25 Adhesive Sealant">Clear-25</a> will cure tack free in 30 minutes at 70F. It will cure to full strength in 7-14 days
in warm areas. <a href="detail.aspx?ID=11225" title="Clear-25 Adhesive Sealant">Clear-25</a> will NOT cure when below 50F. <a href="detail.aspx?ID=21170" title="SB-170 Silicone Sealant">SB-170</a> will initially set after 8
hours and fully cure after 24 hours at 70F and 50% RH, and can be applied down to -20F. It will set and cure below 50F, just slower. You will need MORE snowguards when using SB-170 as its not as strong as Clear-25.</li>
</ul>
<h3 class="article-level-2" id="Glacier-Installation">Glacier Installation Procedures for Mechanical Installation on Shingles:</h3>
<p>Area that SnowGuard will be installed must be clean from any surface contamination. Install the first Snow Guard no more than 12 inch from outside of exterior wall and 12 inch from outside of gable side to prevent ice dams.
Determine the position of the shingle that will cover the shingle ledge by laying it in position and marking in the center of the lower shingle. From this mark, measure up no less than 1 (one) inch and no more than 1-1/4 (one
and a quarter) inch and place a mark, this mark is the top of the Snow Guard.</p>
<p>The installer must determine the proper length, size and number of fasteners or type of adhesive to use. The head of the fastener must be even with snow guard, if it sticks beyond the Snow Guard it could cause the fastener to
push through the shingle. Now is the time to install the first Snow Guard. Position the top of Snow Guard at the mark made in step 2. Insert fasteners into chosen holes of Shingle Ledge on uppermost part of Snow Guard. When
fastening be sure that one screw penetrate through a rafter, purlin or structural support member.</p>
<p>Install the remainder Snow Guards to this row following the guidelines discussed. There should be a maximum of 24 inch between each Snow Guard horizontally and a maximum of 24 inch vertically. Stagger the next row at the
midpoint of the Snow Guards below. Continue this row until reach the other side of roof. At the eaves on most roofs under 6/12 pitch, two staggered rows will be sufficient. Over 6/12 pitch, a third row must be added. If the
distance from the roof edge to peak is greater than thirty feet, no matter the pitch, two additional rows should be added at the center of roof. Add Snow Guards to areas over doorways and around valleys for added protection.
If unsure of amount needed please contact Glacier Snow Guards.</p>
<p>If using screws, cover top and edge of screw with sealant to further protect from leaks. Glacier snow guards have a lifetime warranty against all product defects.</p>
<p>The following manufacturers warranty is made in lieu of all other warranties expressed or implied. Any goods proven to be defective due to materials will be replaced, or purchase price refunded. Under no circumstances shall
the manufacturer be responsible for damages in excess of the purchase price. User shall determine the suitability of the product for its intended use and assumes all risks of its use or handling.</p>
<p>If Glacier Snow Guards are to be installed in the winter months please <a href="http://www.glaciersnowguard.com/contactus.php" title="Glacier Snow Guards" target="_blank">contact Glacier Snow Guards</a> for fastening
recommendations.</p>
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1-800-474-7570 sales@bestmaterials.com Log-In Log-Out About Us Contact Us FAQ Manufacturers Products Shipping Advanced Search ← FIND ANYTHING QUICKLY 0 Items In Cart TOTAL: $0.00 CART CHECKOUT Continue Shopping Estimate Shipping Order Help Browse by Category Adhesives Backer Rod Caulk & Sealants Clean Up Concrete Items Deck Coatings Drains EPDM Eternabond Fasteners Hardware & LPG Metal Goods Paint Supplies Pipe Flashings Roof Coatings Roof Hatch/Vent Roof Repair Roof Tiles Rope Safety Products Snow Guards Support Systems Tarps Tool Accessories Tools & Equip. TPO & PVC Underlayments Vents Waterproofing Catalogs Directory SNOW GUARDS (SNOWGUARDS) AND SNOW RAILS Questions? Need help finding a specific item? Call us or email us! * Snow Guard Product Details and Pricing * More Product Options * Heavy Duty Snow Guard by Glacier * Mini Snow Guard Glacier * Snow Rails, By Berger * Snow Loads, Calculations and Snow Guards * How Do Snow Guards Work? * Typical Snow Guard Installation and Snow Guard Manufacturer Recommendations * Typical Snow Guard Installation Procedures for Installation on Metal Panels * Glacier Installation Procedures for Mechanical Installation on Shingles OVERVIEW We're proud to provide Snow Guards and Snow Rails from all the industries leading snow guard manufacturers including the Berger Clamp-on and Snow Rail snow retention systems, Levis Snow Defenders, MM / Glacier clear Snow Guards, Snow Shield and TRA Snow and Sun. All have a lifetime warranty and are engineered to prevent damage or injury caused by avalanching snow and ice while enhancing the beauty of any roofing system. We have snow guards for all types of roofs including: metal roof snow guards, shingle roof snowguards, tile roof snow guards, membrane roof snow guards, snow rail systems, cedar shake roof and slate roofs snowguards. You'll find our Snow Guard / Snow Rail quick shipping and discount prices are unbeatable. Best Materials stocks all the key materials you need and can ship quickly anywhere. We specialize in suppling large or small quantities direct to any site at the best prices. Email sales@bestmaterials.com for a quote on any project. SNOW GUARD PRODUCT DETAILS AND PRICING: -- Special Sale -- * Heavy Duty Snow Guard by Glacier -- As low as $3.25 * Mini Snow Guard by Glacier -- As low as $1.65 (fits narrow-space areas) * Asphalt Shingle Snow Guards * Clamp-On Snow Guards for Standing Seam Metal Roofs * Copper Roof Snow Guards * Corrugated Metal Roof Snow Guards * Designer Series Snow Guards (also see catalog items) * Flat Metal Roof Panel Guards * Plastic Snow Guards * Slate Roof Snow Guards * Snow Rail Systems for Metal Roofs * Tile Roof Snow Guards * More Tile Roof Options MORE PRODUCT OPTIONS: * Berger Catalog of Additional Items * Berger items in Webstore * TRA Catalog of Additional Items * TRA items in Webstore Orders over 500 units qualify for special freight. Email us for a quote! * Snow Guards, Full Catalog of Options * Snow Rails, Full Catalog of Options Snowguard Fastening: Glacier's Snow Guards are designed with an oversize footprint that provides a large bonding area for adhesive in stallation. Glacier's snow guards are approved for adhesive installation with with the recommended construction adhesive sealants. (competitors designs have much smaller contact area and do not hold well). Or you can use both adhesive and fasteners if desired. * CLEAR-25: General use cost-effective structural sealant and adhesive (325 psi tensile) * SB-190: Super strong adhesive-sealant. Recommended as best by most snow guard manufacturer. (2000 psi tensile) How Much Adhesive: One tube of Sealant installs about 6-8 Heavy Duty Glacier guards and 17 to 20 of the Glacier Mini Guards. Fasteners, if desired: Recommended is #8 HWH SMS together with an EPDM bond-seal washer. More information on seal washers. Special / Custom snow retention layouts: Berger Building Products offers an calculator spreadsheet tool for help with layouts and quantities. MORE INFO ON SNOW GUARD PRODUCTS: HEAVY DUTY SNOW GUARD BY GLACIER: Snow Guard Product: #GSGT5P, Heavy Duty Snow Guard by Glacier. Made from Polycarbonate (Lexan). 4.5 inch on wide X 7.5 inch long with a 3 inch high guard. Design for superior strength with adhesive applications. Applications: Roofs including metal, EPDM, PVC, slate and asphalt shingles. Specifications and Features: The largest and strongest SnowGuard available on the market today. Made from super tough polycarbonate material for the greatest available performance and durability. * With over 30 square inches of base coverage, the Glacier Snow Guard has surpassed the competition to assure the best possible holding and reliability. * 4.5 inch Wide X 7.5 inch Long with a 3 inch High Guard. * U.V. Resistant. * Unique ledge design adapts to shingle type applications. * Three large structural ribs provide superior strength. * Exclusive waffle design tread on the bottom provides maximum holding power (using recommended adhesive sealants). This holding power is such that fasteners are not required -- eliminating penetrations and sources of leaks. * Clear Glacier Snow Guards have low visibility. * Paintable to match roof colors. * 14 pre-molded #8 screw cone head screw holes are provided for mechanical fastening. MINI SNOW GUARD BY GLACIER: Snow Guard Product: #MGSG01, Mini Snow Guard by Glacier. Made from solid Polycarbonate (Lexan). 1.5 inch wide X 5 inch long with a 2 inch high guard. Applications: Recommended for use in smaller areas and overhangs where the larger Snow Guard is not practical. Can be used on all types of roofs including metal, EPDM, PVC, slate and asphalt shingles. Specifications and Features: The Mini SnowGuards are the strongest of this type available on the market today. They are made from polycarbonate material for the greatest available performance and durability. * Narrow footprint enables the MINI Glacier Snow Guard to fit where larger Snow Guards won't. * Exclusive waffle design tread on the bottom provides maximum holding power (using recommended adhesive sealants). This holding power is such that fasteners are not required -- eliminating penetrations and sources of leaks. * Designed for overhangs and narrow valleys found on typical rooftops. * U.V. resistant. * Two oversized structural ribs for superior strength. * Clear Glacier Snow Guards are practically invisible on all roof types. * 1.5 inch Wide X 5 inch Long with a 2 inch High Guard. * 6 Pre-molded #8 screw cone-head screw holes are provided for mechanical fasteners (if desired). SNOW RAILS, BY BERGER: Specifications: * E-Rail (2-rail system) * F-Rail (accommodates up to 4 rails) * S-Rail (low-profile, 1-rail system) Installation: * E-Rail (2-rail system) * F-Rail (accommodates up to 4 rails) * S-Rail (low-profile, 1-rail system) SNOW LOADS, CALCULATIONS AND SNOW GUARDS: Important: The number, location, spacing and attachment method is dependant on the "snow load". Snow loads vary with your location, roof design, seasons, rapid changes in weather and other factors. If you have snow guards which come off, you need to review the snow load. Unbalanced Snow Loads and excessive Snow Build-Up can overload roofs. Good references are: * Commentary On Snow Loads, by the U.S. Army Corps of Engineers. * Changes in Snow Load Calculations, by B. Feldman. * Roof Design for Snow Areas. Excellent discussion of causes of ice dams / buildup and proper roof design. * Ice Dam Formation on Roofs and How to Prevent. From University of Minn. * ASCE-7, America Society of Civil Engineers, "Minimum Design Loads for Buildings and Other Structures". This includes a formula that can be used to convert snow depth to weight. HOW DO SNOW GUARDS WORK? Snow Guards can prevent damage or danger caused by avalanching snow and ice. Snow Guards are attached to the rooftop to allow snow and ice to drop off in small amounts or melt completely before falling to the ground. The Glacier snowguards are designed not only for safety, but for a pleasing while being very cost-effective. Snow guards are installed on roof surfaces to protect against snow and ice damage below. It especially important to install snowguards above: entryways, walkways, and gathering spots; parking lots and drive-through areas; expensive landscaping; ground mounted mechanicals; on metal roofs; lower roofs; valleys and crickets; and gutters and roof protrusions, such as plumbing vents. TYPICAL SNOW GUARD INSTALLATION AND SNOW GUARD MANUFACTURER RECOMMENDATIONS: * Layout Patterns * Installation Instructions (Please see individual products for product specific installation). Note: Best Materials is not responsible for determining the structural integrity or live load capacity of any roof on which Snow Guards will be installed. This shall be done by an licensed architect or engineer. See Snow Loads and Calculations above. All OEM's recommend SB-190 (VERY STRONG). But some use Clear-25 or SB-170 structural adhesive sealants. SB-170 cures quicker, but is not nearly as strong and is more expensive. SB-170 is the only material which can be used during cold temperature installations, and should be seen as s temporary adhesive until weather warms. SB-190 is strongest with 2000 PSI tensile (vs. 325 psi for Clear-25). If you use SB-170 or Clear-25, you will need more snowguards to achieve the same snow holding power as with SB-190. If snowguards come loose, it indicates you have not installed enough Snowguards to sustain the snow load or melting snow conditions. It is not a failure of the adhesive system or the snowguards. If you attached using SB-170, re-attach these with SB-190 in the Spring / warmer weather. Use of adhesive only or adhesive plus fasteners is satisfactory for some applications with Glacier snow guards. Glacier recommends adhesive only. TYPICAL SNOW GUARD INSTALLATION PROCEDURES FOR INSTALLATION ON METAL PANELS: * The area that the Snow Guard will be installed must be clean from any surface contamination. Alcohol will clean the area and will dry quickly. Area must be dry for adhesives to bond properly. * Use a pencil to mark the area where the Snow Guard will be installed, no more than 12 inch from outside of exterior wall to help prevent ice dams. At the eaves on most roofs under 6/12 pitches, two staggered rows of Snow Guards will be sufficient. Over 6/12 pitches, a third row must be added. If the distance from the roof edge to peak is greater than thirty feet, no matter the pitch, two additional rows of Snow Guards should be added. Add Snow Guards to areas over doorways and around valleys for added protection. If unsure about location, placement, fastening or number of Snow Guards needed please Contact Glacier Snow Guards technical support. * After marks have been made. Test fit the Snow Guard. Then apply a bead of adhesive to all ribs, edges and flat surfaces on the entire bottom of Snow Guard. Be sure to apply enough adhesive to fill all air gaps along the ribs and flat surfaces. One tube installs about 6-8 Heavy Duty guards and 17 to 20 of the Mini Guards. * Press the Snow Guard firmly into place with the shingle ledge pointed up, above the mark made in step 2. Apply enough pressure so the adhesive flows into all the holes and around perimeter. * Optional Fasteners: If specified, install screws through pilot holes of choice in Snow Guard and metal roof. Screw must penetrate through purlin or support beam under metal roof panel. For most installations, two screws which penetrate into the support beam must be used as a minimum. Installer shall determine proper length, size and number of screws necessary for required holding strength and torque. Four or more screws help full the metal flat against the Snow Guard and provide even bonding of the adhesive to the metal. * Apply an additional small bead of adhesive around the perimeter of the Snow Guard to seal all edges. Be sure that adhesive came out of all holes, if not apply adhesive to these areas. Cover the top of any screws to seal the penetration path. * Clean up any excess adhesive sealant with WD-40 (best) or Acetone or alcohol (caution: solvent materials are very flammable. Also, eye and skin protection should be used). * Allow enough time for the adhesive sealant to fully cure. Clear-25 will cure tack free in 30 minutes at 70F. It will cure to full strength in 7-14 days in warm areas. Clear-25 will NOT cure when below 50F. SB-170 will initially set after 8 hours and fully cure after 24 hours at 70F and 50% RH, and can be applied down to -20F. It will set and cure below 50F, just slower. You will need MORE snowguards when using SB-170 as its not as strong as Clear-25. GLACIER INSTALLATION PROCEDURES FOR MECHANICAL INSTALLATION ON SHINGLES: Area that SnowGuard will be installed must be clean from any surface contamination. Install the first Snow Guard no more than 12 inch from outside of exterior wall and 12 inch from outside of gable side to prevent ice dams. Determine the position of the shingle that will cover the shingle ledge by laying it in position and marking in the center of the lower shingle. From this mark, measure up no less than 1 (one) inch and no more than 1-1/4 (one and a quarter) inch and place a mark, this mark is the top of the Snow Guard. The installer must determine the proper length, size and number of fasteners or type of adhesive to use. The head of the fastener must be even with snow guard, if it sticks beyond the Snow Guard it could cause the fastener to push through the shingle. Now is the time to install the first Snow Guard. Position the top of Snow Guard at the mark made in step 2. Insert fasteners into chosen holes of Shingle Ledge on uppermost part of Snow Guard. When fastening be sure that one screw penetrate through a rafter, purlin or structural support member. Install the remainder Snow Guards to this row following the guidelines discussed. There should be a maximum of 24 inch between each Snow Guard horizontally and a maximum of 24 inch vertically. Stagger the next row at the midpoint of the Snow Guards below. Continue this row until reach the other side of roof. At the eaves on most roofs under 6/12 pitch, two staggered rows will be sufficient. Over 6/12 pitch, a third row must be added. If the distance from the roof edge to peak is greater than thirty feet, no matter the pitch, two additional rows should be added at the center of roof. Add Snow Guards to areas over doorways and around valleys for added protection. If unsure of amount needed please contact Glacier Snow Guards. If using screws, cover top and edge of screw with sealant to further protect from leaks. Glacier snow guards have a lifetime warranty against all product defects. The following manufacturers warranty is made in lieu of all other warranties expressed or implied. Any goods proven to be defective due to materials will be replaced, or purchase price refunded. Under no circumstances shall the manufacturer be responsible for damages in excess of the purchase price. User shall determine the suitability of the product for its intended use and assumes all risks of its use or handling. If Glacier Snow Guards are to be installed in the winter months please contact Glacier Snow Guards for fastening recommendations. 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