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	<title>Spray Foam Nation</title>
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	<link>http://www.sprayfoamnation.com</link>
	<description>Spray foam services, training and supplies for contractors</description>
	<lastBuildDate>Wed, 22 Feb 2012 16:37:04 +0000</lastBuildDate>
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		<title>Fully Equipped 12ft Spray Foam Trailer For Sale</title>
		<link>http://www.sprayfoamnation.com/fully-equipped-12ft-spray-foam-trailer-sale</link>
		<comments>http://www.sprayfoamnation.com/fully-equipped-12ft-spray-foam-trailer-sale#comments</comments>
		<pubDate>Tue, 07 Feb 2012 21:30:58 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[contractor equipment]]></category>
		<category><![CDATA[foam insulation business]]></category>
		<category><![CDATA[mobile rig]]></category>
		<category><![CDATA[mobile spray insulation]]></category>
		<category><![CDATA[mobile spray rig]]></category>
		<category><![CDATA[SPF contractor]]></category>
		<category><![CDATA[SPF trailer]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=859</guid>
		<description><![CDATA[We are selling a brand new mobile spray rig.  This trailer is fully equipped with everything you need to begin or expand your spray foam business.]]></description>
			<content:encoded><![CDATA[<p>We are selling a brand new <strong>mobile spray rig</strong>. This trailer is fully equipped with everything you need to begin or expand your spray foam business.</p>
<table>
<tbody>
<tr>
<td><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/02/SPF-trailer5.jpg"><img class="alignnone size-thumbnail wp-image-845" title="SPF trailer" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/02/SPF-trailer5-150x150.jpg" alt="SPF trailer" width="150" height="150" /></a></td>
<td><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/02/SPF-trailer4.jpg"><img class="alignnone size-thumbnail wp-image-844" title="SPF trailer" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/02/SPF-trailer4-150x150.jpg" alt="SPF trailer" width="150" height="150" /></a></td>
<td><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/02/SPF-trailer3.jpg"><img class="alignnone size-thumbnail wp-image-843" title="SPF trailer" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/02/SPF-trailer3-150x150.jpg" alt="SPF trailer" width="150" height="150" /></a></td>
</tr>
</tbody>
</table>
<p><strong>Features:</strong></p>
<ul>
<li>12&#8242;x8&#8242; 7000 GVWR V Nose Trailer, 10&#8217;4&#8243; overall height, 8&#8242; interior width, 7&#8217;4&#8243; interior height</li>
<li>Double barrel brace/2&#8243; square tube</li>
<li>Dip Tube to hold Transfer Pumps</li>
<li>Hose reel holder</li>
<li>Tool Box</li>
<li>Wall-mounted overhead steel cabinet</li>
<li>Fully insulated trailer/diamond plate floor</li>
<li>125&#8242; #4 SO cable with 100 Amp breaker</li>
<li>125 Amp Panel, wiring, lights, outlets, switches</li>
<li>Heater 3000 Watt</li>
<li>5HP Piston Compressor/Air dryer</li>
<li>Graco Full E20 Package
<ul>
<li>E20 Reactor</li>
<li>160&#8242; Heated Hose</li>
<li>T1 Transfer Pumps</li>
<li>Fusion AP Gun</li>
</ul>
</li>
</ul>
<p><strong>Price: Only $35,000</strong></p>
<p>Please submit the brief form below or call us for more information.</p>


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		</item>
		<item>
		<title>Spray Foam Nation Introduces The Foam Cube II</title>
		<link>http://www.sprayfoamnation.com/spray-foam-nation-introduces-foam-cube-ii</link>
		<comments>http://www.sprayfoamnation.com/spray-foam-nation-introduces-foam-cube-ii#comments</comments>
		<pubDate>Thu, 26 Jan 2012 19:01:09 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[HVAC contractor]]></category>
		<category><![CDATA[SPF contractor]]></category>
		<category><![CDATA[spray foam contractor]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray polyurethane foam]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=822</guid>
		<description><![CDATA[The Foam Cube II is the perfect auxiliary rig! Expand or enter the spray foam business using an existing truck or trailer. Ideal for use on hard to access jobs]]></description>
			<content:encoded><![CDATA[<p><a title="The Foam Cube II" href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/SFN-Foam-Cube-II-new.pdf" target="_blank"><img class="alignright size-full wp-image-825" title="The Foam Cube II" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/Foam-Cube-II.jpg" alt="The Foam Cube II" width="258" height="300" /></a>Introducing <strong>The Foam Cube II</strong>. This revolutionary spray foam advancement creates an easier way to <strong>expand or enter the spray foam business</strong> using an existing truck or trailer.  The Foam Cube II is ideal for use on <strong>hard to access jobs</strong> such as high rises and large buildings where the equipment needs to be brought inside. It’s the <strong>perfect auxiliary rig! </strong> Its compact design makes a <strong>great backup rig</strong> if your primary equipment goes down or you just need a second rig on the job.</p>
<p><span style="color: #3a8cbb;"><strong>Features</strong></span></p>
<ul>
<li>All aluminum light-weight custom fabricated shell built around the Reactor</li>
<li>Easy access compartments for transfer pumps, Reactor and electrical</li>
<li>Hose rack compartment</li>
<li>Shore power cable holder</li>
<li>Can work with E20, E30, H25 or H40*</li>
<li>Much smaller and compact than Foam Cube I</li>
</ul>
<p><span style="color: #3a8cbb;"><strong><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/SFN-Foam-Cube-II-new.pdf"><img class="alignright size-full wp-image-830" title="Views of the Foam Cube II " src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/foam-cube-views.jpg" alt="Views of the Foam Cube II " width="426" height="151" /></a>Options</strong></span></p>
<p><strong>Weight:</strong></p>
<ul>
<li>E20 FCII: 792 lbs</li>
<li>H25 FCII: 1012 lbs</li>
<li>E30 FCII: 900 lbs</li>
<li>H40 FCII: 1047 lbs</li>
</ul>
<p>Includes Reactor, 50ft hose, 10ft whip, Fusion Gun, Compressor/Dryer and Aluminum custom body. Add 600 lbs if using steel</p>
<p><strong><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/SFN-Foam-Cube-II-new.pdf"><img class="alignright size-full wp-image-836" title="Foam Cube dimensions" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/foam-cube-dimensions-sm.jpg" alt="Foam Cube dimensions" width="280" height="185" /></a>Shell Options:</strong></p>
<ul>
<li>Aluminum (Painted Blue or other color choices)</li>
<li>Aluminum &#8211; Diamond Plate</li>
<li>Steel (Painted Blue) Deduct $300</li>
<li>Roof-mounted hose rack</li>
</ul>
<p><strong>Air Options:</strong></p>
<ul>
<li>Kaeser 5hp Screw Compressor Add $5000</li>
</ul>
<p><a title="The Foam Cube II" href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/SFN-Foam-Cube-II-new.pdf" target="_blank">Click here to download our printable PDF overview</a>.  If you have questions or would like a custom quotation, please <a title="Contact Spray Foam Nation" href="contact-us"><strong>contact us</strong></a>.</p>
]]></content:encoded>
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		</item>
		<item>
		<title>Visit Spray Foam Nation at Booth 513 at the SprayFoam Convention &amp; Expo 2012</title>
		<link>http://www.sprayfoamnation.com/visit-spray-foam-nation-booth-513-sprayfoam-convention-expo-2012</link>
		<comments>http://www.sprayfoamnation.com/visit-spray-foam-nation-booth-513-sprayfoam-convention-expo-2012#comments</comments>
		<pubDate>Tue, 17 Jan 2012 15:11:13 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[convention]]></category>
		<category><![CDATA[SPF]]></category>
		<category><![CDATA[spray foam]]></category>
		<category><![CDATA[spray foam convention]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[sprayfoam]]></category>
		<category><![CDATA[trade show]]></category>
		<category><![CDATA[training]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=807</guid>
		<description><![CDATA[Come meet the professionals at Spray Foam Nation at Booth 513 at the SprayFoam Convention &#038; Expo 2012]]></description>
			<content:encoded><![CDATA[<p><a title="SprayFoam Convention &amp; Expo 2012" href="http://www.sprayfoam.org/index.php?page_id=374" target="_blank"><img class="alignright size-full wp-image-809" title="2012 SPFA Conference" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2012/01/2012-SPFA-conference.jpg" alt="2012 SPFA Conference" width="309" height="167" /></a>Spray Foam Nation is exhibiting at the <a title="SprayFoam Convention &amp; Expo 2012" href="http://www.sprayfoam.org/index.php?page_id=374" target="_blank"><strong>SprayFoam Convention &amp; Expo 2012</strong></a>.  The event is being hosted at the InterContinental Dallas Hotel from January 30 through February 2, 2012.</p>
<p>We invite everyone to stop by <strong>booth 513</strong> and meet the professionals at Spray Foam Nation.  If you are new to the spray foam industry, this is the perfect opportunity to see how Spray Foam Nation can help you <strong>succeed in the SPF contractor business</strong>. If you are already a customer, this a great time to reconnect and be social.  We will have representative from across the country available to answer your questions.</p>
<p>At booth 513, we will have <strong>live product demonstrations</strong> throughout the show.  As part of our National Loaner Rig Program, we will demonstrate our unique Foam Cube mobile spray rig.  There will be plenty of convenient time to ask one-on-one questions from the <strong>leading experts in the SPF industry</strong>.  We look forward to seeing you!</p>
]]></content:encoded>
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		</item>
		<item>
		<title>Trimming Spray Foam Insulation</title>
		<link>http://www.sprayfoamnation.com/trimming-spray-foam-insulation</link>
		<comments>http://www.sprayfoamnation.com/trimming-spray-foam-insulation#comments</comments>
		<pubDate>Mon, 05 Dec 2011 14:12:39 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[drywall]]></category>
		<category><![CDATA[flush]]></category>
		<category><![CDATA[plane]]></category>
		<category><![CDATA[scarfer]]></category>
		<category><![CDATA[SPF]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray foam trimming]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=801</guid>
		<description><![CDATA[After spray polyurethane foam (SPF) has cured, it needs to be trimmed for a flush finish with the studs.  This video demonstrates the process of...]]></description>
			<content:encoded><![CDATA[<p>After spray polyurethane foam (SPF) has cured, it needs to be trimmed for a flush finish with the studs.  This will allow the drywall (or other surface finish) to be installed properly.  There are a number of products on the market to trim spray foam.</p>
<p>This video demonstrates the process of trimming closed cell spray foam.  You&#8217;ll see how the machine cuts smoothly and trims the wall cleanly the full width of the head. This allows for fast easy trimming of corners. By running the head directly on the studs it also uses its rotating head to feed itself up the wall. This minimizes the effort it takes to operate this trimmer if used properly.</p>
<p>The Spray Foam Nation online store features a few different products to help contractors plane the cured spray foam: <a title="16&quot; Foam Planer for 2 lb. Closed Cell Foam" href="http://www.sprayfoamnation.net/product/SFN-PUP16" target="_blank"><strong>16&#8243; Foam Planer for 2 lb. Closed Cell Foam</strong></a> and a <a title="24&quot; Foam Planer" href="http://www.sprayfoamnation.net/product/DP-PUP224E" target="_blank"><strong>24&#8243; Foam Planer</strong></a></p>
<p><iframe width="500" height="375" src="http://www.youtube.com/embed/FEB1vIybU5M?fs=1&#038;feature=oembed" frameborder="0" allowfullscreen></iframe></p>
]]></content:encoded>
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		</item>
		<item>
		<title>Ignition and thermal spray foam applications</title>
		<link>http://www.sprayfoamnation.com/ignition-thermal-applications</link>
		<comments>http://www.sprayfoamnation.com/ignition-thermal-applications#comments</comments>
		<pubDate>Wed, 30 Nov 2011 21:47:01 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[ignition barriers]]></category>
		<category><![CDATA[spray foam applicator]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray foam technician]]></category>
		<category><![CDATA[technician]]></category>
		<category><![CDATA[thermal barriers]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=793</guid>
		<description><![CDATA[Understanding the difference between ignition barriers and thermal barriers with spray foam insulation.]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/11/Lapolla-Logo.jpg"><img class="alignright size-medium wp-image-796" title="Lapolla Logo" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/11/Lapolla-Logo-300x152.jpg" alt="" width="227" height="115" /></a>We&#8217;ve received many questions from spray foam contractors inquiring about the difference between ignition barriers and thermal barriers.  Spray Foam Nation supplies <strong>Lapolla</strong> and <strong>Premium</strong> foams &#8211; both of which have passed testing that other manufacturers have not.  Here is some helpful information on the application of ignition and thermal barriers.</p>
<p><strong>When to put on Ignition barrier?</strong><br />
Anytime you are spraying open cell in an attic or crawl space and it&#8217;s going to be left exposed.</p>
<p><strong>When to put on Thermal barrier?</strong><br />
When spraying closed cell foam or open cell foam AND the attic or crawl space is going to be used for storage or liveable space and the foam will be left exposed (meaning no sheetrock covering the foam).</p>
<p>Another instance would be any area that is going to be used for <strong>living space</strong> &#8211; foam (open or closed) needs to be covered with a Thermal barrier. In most cases, sheetrock/gypsum board is the answer. Certain commercial applications, like when a warehouse or barn gets converted to working area/residential living, and they don&#8217;t want to put up sheetock to frame it out, you would need to spray a thermal barrier over it.</p>
<p>When spraying Thermal barrier, you are using same product as Ignition barrier just adding more <strong>material thickness</strong>.</p>
<p>If you have additional questions regarding thermal or ignition barriers, please <a title="Contact Spray Foam Nation" href="contact-us"><strong>contact us</strong></a>.  We are always happy to help.</p>
<p>&nbsp;</p>
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		</item>
		<item>
		<title>CPDS Series 2 &#8211; The Low Cost Spray Foam Machine</title>
		<link>http://www.sprayfoamnation.com/cpds-series-2-cost-spray-foam-machine</link>
		<comments>http://www.sprayfoamnation.com/cpds-series-2-cost-spray-foam-machine#comments</comments>
		<pubDate>Fri, 28 Oct 2011 19:14:18 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Do It Yourself (DIY)]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[CPDS Series 2]]></category>
		<category><![CDATA[energy efficiency energy efficient home]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray foam kits]]></category>
		<category><![CDATA[spray polyurethane insulation]]></category>
		<category><![CDATA[Touch 'n Seal]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=772</guid>
		<description><![CDATA[The Touch ‘N Seal Constant Pressure Dispensing System (CPDS) Series 2 provides excellent mobility and quick coverage. ]]></description>
			<content:encoded><![CDATA[<h3>Increase your homes’ energy efficiency on a tight budget.</h3>
<p><iframe src="http://www.youtube.com/embed/l6MWYWvw4W4" frameborder="0" align="right" width="335" height="170"></iframe><br />
<strong>What is the CPDS Series 2?</strong><br />
The Touch ‘N Seal Constant Pressure Dispensing System (CPDS) Series 2 provides excellent mobility and quick coverage. It sprays class 1 fire retardant polyurethane spray foam twice as fast as spray foam kits.  This will allow you to get in do the job and then be done in half the time.  It&#8217;s now available at the <a title="Touch N' Seal CPDS Series 2 Constant Pressure Dispensing System" href="http://www.sprayfoamnation.net/product/C-4505500150" target="_blank"><strong>online Spray Foam Nation Store</strong></a>.</p>
<p><strong>What’s included with the CPDS Series 2?</strong><br />
The CPDS Series 2 unit comes fully equipped with enhanced features that improve performance, durability and ease of use.  A built-in thermostatically controlled heater for use in cold temperatures that also improves cold weather starting.  A heavy duty insulated cover that helps to maintain proper operating temperature while protecting the unit from overspray. Thick guage zippers on the front and back – for easy access to the controls without compromising temperature.  A heavy duty pressure booster for increased reliability and longer operating life.  Hose hangers that comfortably hold up to 150  feet of chemical hose for easier handling and storage.</p>
<p>Furthermore, it has a built-in, durable, powder coated metal toolbox with an automatic latching feature that keeps tools secure.  Chemical resistant labeling is durable and scratch resistant to hold up under heavy usage.  An extra set of air pressure hoses to reduce down time, if replacement is required.  Heavy duty ball-baring rear wheels for easy maneuverability.  Heavy duty pressure fittings for ease of attachments and increased strength.  30 feet of durable chemical hoses with the ability to connect up to 150 feet.  CPDS uses disposable chemical cylinders for convenient replacement and maximum product usage and comes complete with 25 fan and 25 conical nozzles.  One can of poly clean and all necessary instructions.  What’s more… bright and easy to read startup and shutdown instructions are never far away.</p>
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		<title>Spray Foam Insulation Can Prevent Ice Dams</title>
		<link>http://www.sprayfoamnation.com/spray-foam-insulation-prevent-ice-dams</link>
		<comments>http://www.sprayfoamnation.com/spray-foam-insulation-prevent-ice-dams#comments</comments>
		<pubDate>Thu, 06 Oct 2011 14:45:57 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[attic insulation]]></category>
		<category><![CDATA[closed-cell]]></category>
		<category><![CDATA[ice dams]]></category>
		<category><![CDATA[open-cell]]></category>
		<category><![CDATA[polyurethane spray]]></category>
		<category><![CDATA[SPF contractor]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray foam resources]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=517</guid>
		<description><![CDATA[Inadequate attic insulation causes ice dams.  Ice dams occur when snow melts on sloped roofs and then refreezes again. ]]></description>
			<content:encoded><![CDATA[<p><strong><a href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/07/ice-dam.jpg"><img class="alignright size-full wp-image-519" title="Ice dam" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/07/ice-dam.jpg" alt="Ice dam" width="260" height="260" /></a>Inadequate attic insulation causes ice dams.</strong> Ice dams occur when snow melts on sloped roofs and then refreezes again.  They are most often caused by attics and roofs with inadequate insulation. Two circumstances combine to make an ice dam.</p>
<p>If your home does not have proper and effective attic insulation, heat can escape from the living space during the cold winter months.  Heat is transferred from the living space and also generated from recessed light fixtures, air ducts, furnaces and other appliances and equipment located in the attic.  This heat raises the roof temperature above the freezing point, causing the snow and ice on the roof to melt and flow downward.</p>
<p>This area is often just inside the perimeter of the outside walls.  Once the melted snow, or water, meets back up with the colder part of the roof (overhang) that hangs over and outside of the interior walls (just above the soffit vent area), it begins to freeze again, expand and back up.  This dam that forms is where this effect gets its name from; ice dam.</p>
<p>Have you ever noticed one house that is completely covered with snow on the roof?  Then you see a house with no snow, or with areas that have completely melted away.  Contrary to one’s belief, the house with all the snow on its roof, typically resembles the better insulated one.  You may also notice huge, long icicles hanging down off the roof of one house, but not on another.  These are all signs of an inadequately insulated roof and/or attic space.  See our section on SPF Attic Insulation and Ventilation.</p>
<p><strong>Damages Can Occur</strong><br />
Backed up water can get under the shingles and through the roof deck. It can drip on the ceiling insulation or run down the underside of the deck to the connection between the roof and the walls. It then makes its way into the building in the form of damaging leaks.  It can also lead to mold and mildew.</p>
<p>Melted water under the unmelted snow can decrease the friction between the snow and the roof and cause a dangerous snow slide, like an avalanche. Melted water often refreezes as icicles hanging from the gutters or edge of the roof. These icicles eventually break off when they get too heavy. Both snow slides and falling icicles endanger passersby.</p>
<p>Properly installed spray foam insulation can prevent ice dams.  Most builders and design professionals are not familiar with modern materials and progressive building science techniques that can virtually eliminate all of these problems that force the traditional, less effective requirement for ventilation in these building spaces.  Spray foam insulation can still provide benefits far greater than traditional materials such as fiberglass and cellulose, regardless of whether you decide to ventilate these spaces or not. By <strong>using spray polyurethane foam insulation you can increase your home’s energy performance, structural integrity and air quality.</strong></p>
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		<title>Protect your home against hurricanes and severe weather</title>
		<link>http://www.sprayfoamnation.com/protect-home-hurricanes-severe-weather</link>
		<comments>http://www.sprayfoamnation.com/protect-home-hurricanes-severe-weather#comments</comments>
		<pubDate>Mon, 29 Aug 2011 16:05:28 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[ccSPF]]></category>
		<category><![CDATA[closed-cell spray foam]]></category>
		<category><![CDATA[flood]]></category>
		<category><![CDATA[home]]></category>
		<category><![CDATA[hurricane]]></category>
		<category><![CDATA[severe weather]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray polyurethane foam]]></category>
		<category><![CDATA[tornado]]></category>
		<category><![CDATA[uplift]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=651</guid>
		<description><![CDATA[Help protect your home against hurricanes, floods, tornadoes, blizzards, and other severe weather conditions. Spray foam insulation can strengthen your home.]]></description>
			<content:encoded><![CDATA[<p><img class="alignright size-full wp-image-658" title="Hurricane" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/hurricane.jpg" alt="Hurricane" width="259" height="195" />Now that Hurricane Irene just surged up the East Coast, millions of  people witnessed the power and magnitude of these storms.  We thought  this whitepaper entitled: <strong><a title="Severe weather and home protection" href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/Residential-Severe-Weather-Whitepaper.pdf" target="_blank">Severe Weather and Closed-Cell Spray Foam: A Better Building Technology</a> </strong>– would be of particular interest.</p>
<p>The article highlights the benefits of using closed-cell spray  polyurethane foam (ccSPF), also known as medium-density spray foam, in  residential construction.  ccSPF can be used as cavity insulation and as  an exterior wall and roof material. The material has <strong>applications in all climate zones</strong>.</p>
<p>Among the numerous benefits offered by ccSPF, the material’s <strong>water resistance</strong> can be an invaluable asset in the face of the severe weather conditions  common to coastal regions. In fact, “Closed-cell spray foam has  negligible water permeability, minimal water absorption, and excellent  adhesion allowing it to act as a secondary rainwater barrier to limit  damage when primary roof assembly rainwater-control membranes leak,”  states Christopher J. Schumacher, a principal with Building Science  Consulting, Westford, Massachusetts.</p>
<p><a title="Severe weather and home protection" href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/Residential-Severe-Weather-Whitepaper.pdf" target="_blank"><img class="alignright size-full wp-image-656" title="Severe weather home protection" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/severe-weather-home-protection.jpg" alt="Severe weather home protection" width="221" height="300" /></a>Everywhere  there are joints and cracks, the spray foam seals and prevents the  entry of water. In cases where the primary roof does leak, the ccSPF  application can keep water from spreading through to the interior  finishes.</p>
<p>And for low-slope roofing, ccSPF, by itself, can actually perform as a  primary water barrier due to its high adhesion and closed-cell  characteristics. It keeps away mold and mildew and is the only  FEMA-approved cavity insulation for homes built in flood zones.   Furthermore, after it is exposed to water, it demonstrates rapid drying  capability.</p>
<p>The high-performance insulating material, closed-cell SPF,  strengthens the same walls they insulate. Closed-cell SPF is stiffer and  stronger than other insulations. For that reason, <strong>ccSPF can strengthen frame walls by a factor of two to three times</strong> when applied inside the wall cavities.</p>
<p>An additional area where ccSPF has well proven its worth includes <strong>withstanding wind uplift</strong>.  Considering the fact that uplift of the roof deck is, after window and  glazing damage, the most common form of hurricane damage, this can be  key.  Testing shows that <strong>wind uplift performance can increase by two to three times with spray foam insulation</strong>.</p>
<p>Beyond water resistance and wind uplift, additional ccSPF properties include <strong>thermal insulation and airflow control</strong>.   Closed-cell spray foam acts as an air barrier (at 1 in. or 25 mm  minimum thickness) and vapor retarder (at 2 in. or 50 mm minimum  thickness) and therefore does not need an additional vapor retarder in  cold climates. And because ccSPF is air impermeable, it adheres well to  construction surfaces and expands to fill voids, thereby creating an air  seal.</p>
<p>With ccSPF, all these problems are eliminated. Industry groups like  the Spray Polyurethane Foam Alliance (SPFA) and the Spray Polyurethane  Foam Division of the Society of the Plastics Industry (SPI) list a  number of <strong>additional benefits</strong>:</p>
<ul>
<li>Energy transfer through ductwork is no longer lost to the exterior.</li>
<li>Water pipes are better protected from freezing.</li>
<li>Airtightness requirements for the ceiling plane are reduced or eliminated.</li>
<li>Renovation and rewiring involve no disturbance to the insulation layer.</li>
<li>Attic storage space</li>
</ul>
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		<title>Understanding the differences in spray polyurethane foam</title>
		<link>http://www.sprayfoamnation.com/understanding-differences-spray-polyurethane-foam</link>
		<comments>http://www.sprayfoamnation.com/understanding-differences-spray-polyurethane-foam#comments</comments>
		<pubDate>Thu, 18 Aug 2011 14:27:22 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[closed-cell foam]]></category>
		<category><![CDATA[open-cell foam]]></category>
		<category><![CDATA[R-value]]></category>
		<category><![CDATA[SPF insulation]]></category>
		<category><![CDATA[spray foam insulation]]></category>
		<category><![CDATA[spray polyurethane foam]]></category>
		<category><![CDATA[two-component foam]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=599</guid>
		<description><![CDATA[This article discusses the advantageous and differences between open-cell and closed-cell spray polyurethane foam.]]></description>
			<content:encoded><![CDATA[<p><a title="SPF Differences" href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/Difference-between-closed-cell-and-open-cell-foam.pdf" target="_blank"><img class="alignright size-full wp-image-600" title="SPF differences" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/spray-foam-difference.jpg" alt="SPF differences" width="260" height="341" /></a>Spray polyurethane foam (SPF) has become popular for its insulation value and air barrier qualities. The plastic material comes in two basic types—[0.2-kg] 1/2-lb and [0.9-kg] 2-lb— and both are used in insulation applications as barriers in buildings. Both of these foams also can help control condensation within buildings and have other environmental benefits.</p>
<p>This PDF article discusses the <a title="SPF Differences" href="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/Difference-between-closed-cell-and-open-cell-foam.pdf" target="_blank"><strong>advantageous and differences between open-cell and closed-cell spray polyurethane foam</strong></a>.</p>
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		<title>ICC Compliance Unvented Roof</title>
		<link>http://www.sprayfoamnation.com/icc-compliance-unvented-roof</link>
		<comments>http://www.sprayfoamnation.com/icc-compliance-unvented-roof#comments</comments>
		<pubDate>Thu, 18 Aug 2011 13:57:23 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Contractor Topics]]></category>
		<category><![CDATA[Green Technology]]></category>
		<category><![CDATA[Spray Foam Trends]]></category>
		<category><![CDATA[energy efficiency]]></category>
		<category><![CDATA[ICC]]></category>
		<category><![CDATA[IRC]]></category>
		<category><![CDATA[SPF insulation]]></category>
		<category><![CDATA[unvented attic]]></category>
		<category><![CDATA[unvented roof]]></category>

		<guid isPermaLink="false">http://www.sprayfoamnation.com/?p=592</guid>
		<description><![CDATA[ICC accepted sweeping changes to ICC's energy-efficiency requirements, including a provision in International Residential Code (IRC) allowing unvented attics]]></description>
			<content:encoded><![CDATA[<p>During the International Code Council&#8217;s (ICC&#8217;s) 2003-04 code development cycle, the U.S. Department of Energy submitted and ICC accepted sweeping changes to ICC&#8217;s energy-efficiency requirements, including a provision in the <em>International Residential Code </em>(IRC) allowing unvented attics, or &#8220;conditioned attic assemblies,&#8221; in certain situations.</p>
<p><img class="alignright size-full wp-image-594" title="Unvented Attic" src="http://www.sprayfoamnation.com/wordpress/wp-content/uploads/2011/08/Unvented-Attic.jpg" alt="Unvented Attic" width="359" height="261" />As a result, the upcoming 2006 edition of IRC will allow unvented, conditioned attics when the following four conditions are met:</p>
<p><strong>1. </strong>No interior vapor retarders are installed on the ceiling side (attic floor) of the unvented attic space.</p>
<p><strong>2. </strong>An air-impermeable insulation is applied directly to the interior underside of the structural roof deck. &#8220;Air permeable&#8221; is defined as ASTM E283, &#8220;Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen.&#8221; An exception is permitted in the code&#8217;s Climate Zones 2B and 3B (portions of southern California and Arizona) where the use of air-impermeable insulation is not required.</p>
<p><strong>3. </strong>In Climate Zones 3 through 8, sufficient insulation is installed to maintain the monthly average temperature of the condensing surface above 45 F (7 C). These zones encompass all the U.S. except Florida and Hawaii and the southernmost portions of Alabama, Arizona, California, Georgia, Louisiana, Mississippi and Texas. The condensing surface is defined as either the structural roof deck or interior surface side of the air-impermeable insulation. For calculation purposes, an interior design temperature of 68 F (20 C) is assumed; exterior temperature is determined as the monthly average outside temperature.</p>
<p><strong>4. </strong>In warm, humid locations, for asphalt shingle roof systems, a vapor retarder with a perm rating of 1 perm (57.4 mg/s•m²•Pa) or less be installed on the exterior side of the structural roof deck. For wood shingle and shake roof systems, a 1/4-inch- (6-mm-) thick minimum air space shall be provided between the underlayment and shingles or shakes. &#8220;Warm, humid locations&#8221; include all of Florida and specific counties in Alabama, Arkansas, Georgia, Louisiana, Mississippi, North Carolina, South Carolina and Texas.</p>
<p><strong>UNVENTED ATTIC:</strong></p>
<p>The new International Residential Code language allows unvented attic spaces, as long as the roof is insulated with air-impermeable foam and there&#8217;s no vapor retarder between the attic and the living space.</p>
<p>Recommended insulation for coastal areas by FEMA technical fact sheet # 8 <strong>Insulation</strong>: plastics, synthetics, and closed-cell foam, or other types approved by local building officials</p>
<p>There&#8217;s no evidence that sealed and insulated attics trap moisture. Researchers have found that, in hot, humid climates, buildings with unvented attics are actually less likely to have condensation and mold than those with vented attics. That&#8217;s because, in these climates, most moisture comes from outside, and the foam keeps the attic dry by sealing that moisture out.</p>
<p>Humid attics wouldn&#8217;t be so bad if it weren&#8217;t for leaky air-conditioning ducts. Depending on the pressures in the HVAC system and the pressures in the house created by that system, these leaks can blow cold air into the attic or suck hot, humid air into the ductwork and into floor and wall cavities. Either way, you have a problem. Air leaking from the ducts can cool nearby surfaces enough that humid attic air condenses on them. Moist air pulled into the ductwork will get blown into the living space, where it can condense on walls and ceilings. There has seen none of these ills in homes with sealed and conditioned attics (conditioned by means of passive connection to the living space).</p>
<p>Foam contractors are trained and certified by insulation manufacturers. There have been no reported problems with unvented attics built in Florida as long as 10 years ago. It&#8217;s a proven building technology.</p>
<p>In high wind regions – particularly in coastal areas, wind driven rain is a problem with vented roof assemblies. Additionally, during high wind events, vented soffit collapse leads to building pressurization and window blowout and roof loss due to increased uplift. Unvented roofs – principally due to the robustness of their soffit construction &#8211; outperform vented roofs during hurricanes – they are safer.</p>
<p>Effects on roofing</p>
<ul>
<li>The greatest influence on roof temperature is geographic location. The mean roof temperatures for Miami and Green Bay, Wis., for example, differ by 18 degrees Celsius.</li>
<li>The direction a roof faces has the second greatest influence on average roof temperature (in excess of 1.44 degrees Celsius in the east through south-to-west range studied, but the real difference is greater because other directions, such as north, will be cooler).</li>
<li>The color of roofing materials influences the mean temperature of a roof system slightly less than direction (1.45 degrees Celsius average for these parameters).</li>
<li>Ventilating the area under a roof deck reduces the average temperature 0.5 degrees Celsius (about one-third the influence of the direction or color and one-thirty-sixth the influence of geographic location). Even with wind assistance, ventilation reduces average roof temperature about half as much as using white rather than black shingles.</li>
<li>Within the ranges studied, slope has the least influence on average shingle temperature</li>
</ul>
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