Protection & Energy Efficiency with Heatlok HFO Closed-Cell Spray Foam

Exterior Foundation Insulation

Protect your foundation with Heatlok HFO Closed-Cell Spray Foam for a dry, durable, and energy-efficient home. Ideal for new builds and renovations, exterior insulation prevents moisture, heat loss, and structural damage. 

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Seal, Protect, and Save with Heatlok HFO Closed-Cell Spray Foam!​

Upgrade your foundation with Heatlok HFO Closed-Cell Spray Foam—the ultimate solution for a dry, durable, and energy-efficient home. By insulating from the exterior, you create a seamless, high-performance barrier against moisture, heat loss, and structural damage. Perfect for new construction and renovations, this eco-friendly insulation not only strengthens your foundation but also helps you save on energy costs for years to come.

HeatLok Spray Foam

Why Choose Exterior Foundation Insulation?

Most foundations are insulated from the interior, but applying insulation from the exterior before backfilling is the preferred method. This approach helps prevent water infiltration, heat loss, and foundation deterioration.

Benefits of Heatlok HFO Spray Foam

  • High R-Value (R-16 at 2.5") lowers energy costs and meets residential and commercial code requirements.
  • Seamless Applicationprevents leaks, water damage, and air gaps.
  • Strong Adhesion ensures durability without sagging or movement.
  • Mold & Flood Resistant, maintaining insulation integrity even in extreme conditions.
  • Quick & Efficient Installation saves time and labor costs.
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or call US: 315-822-5238

Ideal for Renovations & New Builds

If you’re excavating an old foundation, it’s the perfect time to add exterior insulation with Heatlok HFO. It can be applied directly to concrete, block, or stone, forming a continuous, water-resistant barrier.
HeatLok Spray Foam

Additional Protection & Finishing

While Heatlok HFO is highly resistant to moisture, adding a bituminous coating, polyurea, or drainage membrane enhances waterproofing in high-water areas. For above-grade portions, we recommend Z-bar framing and light-cement board finishing for a polished look.

Eco-Friendly & Sustainable

Manufactured in the USA, Heatlok HFO contains 19% recycled and renewable materials. To date, over 600 million plastic bottles have been recycled into insulation materials, making it a smart choice for sustainability.
HeatLok Spray Foam

Get a Durable, Energy-Efficient Foundation

Upgrade your foundation insulation with Heatlok HFO Spray Foam and enjoy lasting protection, lower energy costs, and a healthier home.
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or call US: 315-822-5238
I could not be happier with the experience we have had with Upstate Spray Foam. When they were done they cleaned up great and exceeded every expectation!
Jeff Peneston
Jeff Peneston
Professional, it's nice to deal with people who know what they are doing and do what they say.
Paul Chapman
Paul Chapman
They came on time, did excellent work. I think they’re excellent, they do extremely extremely good work.
Esther Weldon
Esther Weldon