Energy Wiseguy

Willie Delfs
Energy Wiseguy Willie Delfs of Able Home Builders

Dear fellow Energy Wise Enthusiasts,
I hope that the content has value to you either as a builder or consumer.  Additionally, I hope that it can help you with your bottom line.  I value your input regarding any of the subjects that I address.  If there is something that you would like highlighted, I would be happy to research and report the subject.  This column will always be a work in progress.  You may contact me at
Your Energy Wise Guy…..Willie

Why Spray Foam?

With spray foam, builders can lower construction costs, meet or exceed today’s stringent building code requirements, and provide customers with the benefits of spray foam.

Spray foam acts as both insulation and an air barrier that seals the building envelope, reducing the need for additional air sealant materials. Also, some jurisdictions require air tightness tests to prove compliance. A spray foam building assembly can be tested before the drywall is applied, which could save time and avoid costly repairs if defects are found.

Meet or Exceed Building Code Requirements
Spray foam fits into hard to reach places and can be applied directly onto existing roof coverings, which could eliminate the need for costly and time consuming tear-off and replacement.
Spray foam roofs and insulation can help you meet or exceed the stringent building and energy codes adopted by states and localities that encourage or mandate increased energy efficiency.
Spray foam can help builders meet the energy efficiency requirements if involved programs such as Energy Star, LEED, and NAHB Green Building Certification, potentially eliminating the need for a local code official inspection of energy elements and reduced fees.

Spray Foam Roofs: Strong and Durable
Applying a spray polyurethane foam (SPF) roofing system can improve a buildings strength and an effective lifespan that can exceed up to 30 years.

Because SPF conforms and adheres to the surface on which it is sprayed, a strong bond forms to protect the roof. The layer of spray foam is seamless and self-flashing, which can eliminate the ability of water to seep through weak spots, such as fasteners and seams.

SPF Insulation: Strength and Resilience
The Federal Emergency Management Agency (FEMA), which responds to natural disasters, has classified SPF insulation as highly resistant to floodwater damage, saying, “These materials can survive wetting and drying and may be successfully cleaned after a flood to render them free of most harmful pollutants.

Applying closed-cell spray foam in the cavities of the walls increases durability of the wall system because of the foam’s ability to conform and adhere to the surface upon which it is sprayed. A wall with spray foam insulation has a higher racking strength, or ability to maintain its shape under duress, than a wall assembly without spray foam.

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