spray foam insulation for pest control

Building severe several functions, including the control of heat, air, and moisture. Spray foam insulation for pest control doesn't just keep out unwanted creatures, it helps seal cracks, gaps and penetrations in the building envelope in order to mitigate air leakage and improve the thermal performance of a home. Creating an energy-efficient building enclosure that meets current energy codes requires proper design, effective installation of insulation and efficient air barrier systems. Spray Polyurethane Foam (SPF) is a high-performance insulation that provides integral air sealing and moisture control benefits in a single product application while protecting your home from unwelcome pests.

 

NATURAL POLYMERS PEST GUARD SPF™

Why choose an insect spray foam? Termites cause more than $5 billion in damage to structures each year across the United States. Annual subterranean termite inspections are performed due to a myriad of biotic and abiotic factors influencing termite protection. SPF is not known to attract or provide a food source for termites, but it can obscure the ability of pest management professionals to inspect areas of a building’s substructure that are critical for early detection. Developing a way to help make a spray foam deter a pest is an advantage over traditional spray foam insulations. 

Natural Polymers’ new Pest Guard SPF™ offers solutions to some of these challenges by integrating resistance to specific types of pests. Pest Guard SPF is the B component of a two-component polyurethane foam system. When combining the A component with the B component, you can achieve a closed-cell spray foam that has a low GWP and helps to create a barrier against certain types of pests. This patent-pending technology can provide customers with additional protection that traditional spray foams don't offer.

 

TESTED EFFICIENCY WITH PROMISING RESULTS

The attached SPFA white paper states on page 5 "Building codes may not approve the installation of foam plastics on building exteriors below grade in areas where termite infestation is considered “very heavy.” Check with local building code authorities for the applicability of applying SPF below grade in your area."

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In a third-party study formulation, Pest Guard SPF™ was selected and tested against Darkling Beetles and Formosan Termites to test its ability to resist pest infestation. This was tested against a control formulation. The following 0-10 is a rating failure to excitable described below:

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Insect Spray Foam Sample Rating 

 The rating of each sample was done visually by trained and experienced scientists, estimating the extent of the damage. The rating scale used was 0 to 10.

FOAM RATINGS INSIDE FOAM

Of the inside foam samples, four samples were grazed on by the darkling beetles and those foam samples recieved 9.5 ratings. The fifth sample was sound receiving a rating of 10. Outside foam - of the outside foam samples, two were grazed on by the darkling beetles and those foam samples received 9.5 ratings. The other three samples were sound receiving a rating of 10. 

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REPORT: WDL-2018-14 DARKLING BEETLE BARRIER TEST

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Figure 1. Darkling beetles from Carolina Biological.

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Figure 2. Pest Guard SPF™ foam; outside exposure to darkling beetles. The beetles grazed the two samples to the left; the three samples on the right were sound.

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Figure 3. Pest Guard SPF™ foam; inside exposure to darkling beetles. The beetles grazed the four bottom samples; the top sample was sound.

 Darkling beetles

The Pest Guard SPF™ held up to darkling beetle attack and tunneling in this test. The beetles did not penetrate through the foam barriers.

The objective of this study was to evaluate Pest Guard SPF for the prevention of Formosan subterranean termites (Coptotermes formosanus). Feeding in an AWPA E1-17 choice test. Pest Guard SPF performance was compared to that of southern pine controls.  

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Southern Yellow Pine vs. Pest Guard SPF™ was put to the test against the Formosans Terminates

When given a choice between Pest Guard SPF™ (Picture 5) and untreated southern pine control (Picture 4), Formosan subterranean termites chose to feed on the untreated pine controls rather than the Pest Guard SPF™ formulation. When forced to choose after 28 days, Pest Guard SPF™ (Picture 7) did receive a slight attack, but much less when compared to this same test of the no-choice variety Southern Yellow Pine (Picture 6). When comparing a conventional foam that was not treated and didn’t contain Pest Guard SPF the treated spray foam showed very little attack (Picture 8). It’s clear that Pest Guard SPF can help give better protection against terminates.

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Picture 4. Samples prior to testing.

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Picture 5. Samples after 28 days of exposure to 400 Formosan subterranean termite’s choice tests.

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Picture 6. Pest Guard SPF™ prior to testing vs. Southern Yellow Pine.

 

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Results Picture 8. Conventional Spray Foam after 28 days of exposure to 400 Formosan subterranean termites.

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Results Picture 7. Pest Guard SPF™ after 28 days of exposure to 400 Formosan subterranean termites.

 

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