Insulation Can Help Protect Homes From Flooding

Posted on: December 29, 2017 by in Blog
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man insulating a houseFrom your friends at Techcon Inspection Services.

Hurricane season is in full swing, and thousands of homeowners across the southern U.S. and Puerto Rico have been hit by mammoth hurricanes Harvey, Irma and Maria.

The cost of damages that occur in hurricanes or intense tropical storms making landfall in the U.S. each year numbers in the billions. Heavy rain, storm surges, and coastal flooding can all contribute to the destruction of homes and other buildings.

According to the Federal Emergency Management Agency (FEMA), flooding accounts for more than $3.5 billion in insurance claims annually. Flood waters due to storm surge, underperforming drainage or broken levees can induce physical deterioration of the building structure; perpetuate mold growth; contain contaminants, corrosive dissolved salts and/or raw sewage; saturate insulation and wallboard, carpets and furniture as well as contribute toward respiratory problems, allergies, infection and irritation of the eyes and skin.

In the aftermath of a hurricane, concentrated efforts are made to clean up and get families back in their homes. Repair work to replace damaged wood and drywall can help the home look like new, but what about the building materials behind the walls? Traditional insulation materials like fiberglass and cellulose insulate the typical family home from the heat and cold. However, it is not the primary function of traditional insulation to protect against flooding. So, when this occurs, insulation offers virtually no impediment to rising floodwaters. Traditional insulation often becomes laden with moisture and is usually unable to dry out quick enough to withstand damage. If not completely removed during the clean-up process, excess moisture leads to the potential for mold growth.

FEMA has identified flood-resistant building materials ideal for use in the reconstruction or repair of a building impacted by a hurricane and flooding. Building materials FEMA has identified include corrosion-resistant coated steel, pressure-treated wood, epoxy formed-in-place flooring as well as closed-cell spray foam insulation. These products fall into Class 4 or Class 5 of FEMA’s flood damage-resistance classification system. For FEMA to consider a building material to be flood-resistant, it must be able to withstand direct contact with floodwater for an extended period (72 hours) of time.

Closed-cell spray foam insulation, like that available from Icynene, quickly becomes rigid and adds structural integrity. Applied in areas such as the basement or crawlspace, it can help reduce the risk of significant damage that hurricanes and the resulting floodwaters can cause. This is due to closed-cell spray foam insulation’s ability to reject bulk water ingress.

Spray foam insulation can also help play an important role in maintaining a comfortable temperature year round while helping to control monthly expenses. Thanks to spray foam insulation’s air-sealing qualities, homeowners can reduce the size of their heating and cooling equipment since less effort is required to heat or cool the home.

With the increase in the intensity of hurricanes over the past 30 years, having a home insulated with closed-cell spray foam insulation can be an effective way to ensure you are better prepared for the next hurricane season. More information can be found at – (BPT)

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