Did you know that FEMA has rated Closed Cell Foam Insulation Higher than Fiberglass and Cellulose Insulation at protecting buildings during damaging floods and hurricanes?

With Hurrican Dorian Barring Down on The Florida Coast, We Want To Explore the Usefullness of Closed Cell Foam Insulation as a Flood Water Barrier.


With Hurricane Season in full swing we wanted to look into the usefulness of spray foam insulation as a potential deterrent to the type of damaging winds and flooding that are so typical of these storms. Every year the cost of damages to coastal homes seems to be rising as the hurricanes and tropical storms continue to get worse. From homes and other structures having their foundations ripped out from underneath them due to storm surges and coastal flooding, to roofs being blown off during +111 mile winds (the type typical of a category 3 hurricane). According to the Federal Emergency Management Agency (FEMA), flooding from these types of storms has amassed more than $3.5 Billion in insurance claims annually. With these types of numbers, it’s not uncommon to question whether there was something more you can do to protect your homes, your business, and your family.

Enter Spray Foam Insulation.

Spray Foam Insulation has long been valued by the marketplace as an extremely effective barrier, helping to restrict water and air from entering a structure. This is due to its inherent ability to expand and fill any potential areas where wind and water could seep in, creating a tight seal that can’t be replicated by more traditional forms of insulation, like fiberglass batting and cellulose. The benefits of choosing spray foam insulation doesn’t stop there, however. More traditional forms of insulation are meant mainly to insulate a building from seasonal extremes in temperatures, not to safeguard against water damage. This type of insulation is quick to become saturated whenever there is an excessive amount of moisture able to enter the home or structure where it is applied. This will quickly spur on mold growth, minimize the overall R-value, and – especially when saturated with contaminated floodwaters – will need to be replaced to ensure the safety of the inhabitants. Combined this paints cellulose and fiberglass insulation as a much less desirable option in flood-prone and coastal areas.


FEMA’s Recommendations On Flood Resistant Building Materials

FEMA has also identified a number of other flood-resistant building materials that are ideal for construction or repair of a home located in or impacted by hurricanes, tropical storms, and other types of flooding. The building materials FEMA has identified have been rated either a Class 4 or Class 5 in FEMA’s flood damage-resistance classification system and include corrosion-resistant coated steel, pressure-treated wood, epoxy formed-in-place flooring, and Sprayed Polyurethane Foam (Closed Cell). To meet these requirements the materials must be able to stand up to floodwater for an extended period of time (about 72 hours).


FEMA Ranks Spray Polyurethane As The Most Effective Insulation To Protect Homes and Businesses During Times of Flooding

FEMA Ranks Spray Polyurethane As The Most Effective Insulation To Protect Homes and Businesses During Times of Flooding

Benefits of Using Closed Cell Insulating Foam

FEMA has highlighted Closed Cell Insulation as a Class 5 insulation due to several factors that help it stand out from other types of spray foam and batting-type insulation. Unlike the spongy/flexible texture of Open Cell Spray Foam, closed-cell insulation becomes rigid after application, cementing its place as a key element in the overall structural integrity of buildings in flood and hurricane-prone areas. When applied to certain key areas such as unvented attics, closed-cell foam can also prevent roofs from being blown off from high-speed, damaging winds.

Closed Cell Foam is also uniquely able to reject bulk water ingress, making it an especially strong asset during times of flooding when it has been applied to basements and crawlspaces.

The benefits of Closed Cell Foam Insulation extend well past Hurricane Season, as well. As a long-term solution, Closed Cell Spray Foam can play an important role in maintaining a comfortable temperature year-round while minimizing the expenses associated with doing so and without taxing the A/C and heating systems.

For homeowners wanting to reinforce their wind and water barrier systems ahead of the ever-encroaching storms, we offer several DIY-friendly options for closed-cell foam insulation, as well as the SprayEZ Cartridge gun, which helps to make applying Spray Foam (and other materials) a breeze.

Looking to add Closed Cell Foam Insulation to your list of services? We carry industrial-sized barrels of Foamulsate 220 Medium Density Closed Cell Insulation (R-Value of 7 per inch), Foamsulate 1000 High-Density Closed Cell Insulation (R-value 6.7 per inch), and SES NexSeal Closed Cell Foam Insulation (R-Value of 7 per inch).

Have a question about starting your own Spray Foam Business? We can help! From Spray Foam Rigs and Equipment to roofing and insulation materials, we have you covered. Give us a call anytime to speak with one of our spray foam specialists: 877-772-9629. Need special financing? We offer that too, click here to fill out a Special Financing Application Form.