The stack effect continuously pulls conditioned air out of a home and draws replacement air in through gaps and cracks in the building envelope. As this
replacement air enters through windows, doors, rim joists, electrical penetrations, and wall cavities, it often carries dust, humidity, and allergens with it. With air leakage accounting for up to 40% of a home's heating and cooling losses, reducing the stack effect can significantly reduce your home’s utility bills, improve comfort, and support healthier indoor air quality.
Spray foam insulation creates an air seal at less than 1 inch of thickness, while traditional insulation materials such as fiberglass allow air to pass through and around them. By air sealing the attic floor, top plates, and other leakage points, one of the primary drivers of the negative pressures created by the stack effect is removed. The result is lower energy costs and a more comfortable home by keeping cooled or heated air where it belongs. In addition, with one of the highest R-values of any insulation available, spray foam doesn't just reduce air leakage—it also dramatically
slows conductive heat transfer through the building envelope.
Upgrade insulation and air seal walls and ceilings during remodels, renovations, and room additions.
Stop the stack effect by sealing the attic floor penetrations, top plates, HVAC boots, and recessed lights.
Improve comfort, reduce condensation, and protect your investment in shops, garages, barndominiums, hog pens, chicken houses, and agricultural buildings.
Meet code requirements and maximize comfort with high R-values where cavity depth is limited.
HandiFoam® is known for producing uniform foam with a tight cell structure, durable outer skin, and predictable expansion. When installed properly, it delivers excellent insulation performance, air sealing, and long-term durability.
ColorWise® nozzles change color when chemicals are too cold, helping identify issues before they affect foam quality. Snap-Tip™ nozzles provide either fan or cone spray patterns from every tip, and the durable variable-rate trigger offers greater control throughout the life of the kit.
HandiFoam® is Greenguard Gold Certified for exceptionally low VOC emissions and is approved for use in schools, healthcare facilities, and daycares. With an ASTM E84 Class A Fire Rating and ICC-ES ESR-2717 code evaluation report, HandiFoam® provides confidence in both safety and code compliance.
Exceptional R-value, outstanding air
sealing, and water-resistant performance at just one inch of thickness.
Walls • Rim Joists • Crawl Spaces • Cathedral Ceilings • Metal Buildings
Lower cost at higher coverage, vapor
permeable for hot and humid climates, and excellent sound control.
Walls • Attics • Hot/Humid Climates • Theater Rooms
High compressive strength, durable, and
designed for roofing and specialty applications.
Roof Repairs • Structural Fill • Sidewalk Lifting • Specialty
Slow-rising foam for enclosed cavities
and existing walls, plus liquid-applied foam for narrow channels, enclosed
cavities, and specialty fills.
Door Frames • Window Frames • Existing Walls • Concrete Block Walls • Enclosed Cavities
Tiered pricing automatically applied when purchasing multiple spray foam kits. Call us for price matching or special pricing on large volume projects and contractor purchases.
View Promotions →Not sure what product or system you need? Call now for assistance Monday–Friday, 8am–5pm ET.
Contact a foam expert →| Product | Best Applications | Yield | R-Value / inch | Key Benefits | Relative Cost |
|---|---|---|---|---|---|
| Closed Cell | |||||
| • FOAM105 | Small Repairs, HVAC | 105 bf | R-6.1 to R-6.6 | Air Seal, Water Resistant | $$$$ |
| • FOAM205 | Rim Joists, Crawl Spaces, Air Sealing | 205 bf | R-6.1 to R-6.6 | Air Seal, Water Resistant | $$$ |
| • FOAM605 | Walls, Attics, Remodels, Metal Buildings | 605 bf | R-6.1 to R-6.6 | Air Seal, Water Resistant | $$ |
| Open Cell | Walls, Attics, Sound Control, Large Coverage | 1550 bf / 500 bf | R-4.4 to R-6.1 | Vapor Permeable, Fast Rising | $ |
| Slow Rise | Existing Wall Cavities | 41 cf / 12 cf | R-5.9 | Slow Rising, Low Pressure | $$$ |
| Channel Fill | Door Frames, Window Frames, Narrow Cavities | 35 cf / 12 cf | R-6.0 | Initially a Liquid, Flows Through Narrow Cavities | $$$$$ |
| Roof / High Density | SPF Roof Repairs, Structural Fill, Concrete Lifting | 340 bf / 60 bf | R-5.2 to R-6.5 | Compressive Strength | $$$ |
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Check out the most common questions our customers ask. Still stuck?
Contact our support team directly.
A board foot is a volume measurement equal to 12" × 12" × 1" thick. Spray foam kits are rated in board feet, allowing you to estimate coverage based on the area being sprayed and the desired thickness.
Closed-cell foam offers higher R-value, superior air sealing, and water-resistant performance, while open-cell foam provides greater coverage, excellent sound control, higher vapor permeability for hot/humid climates, and lower cost per square foot. The best choice depends on your application, climate, and project goals.
Coverage depends on the thickness being applied. For kits specified in bf, take your square footage requirement and divide by the number of inches of thickness you intend to spray (which in-turn may depend on the R-value requirement). Then divide by the kit’s stated yield to determine how many kits you may need. For kits specified in cf, take your volume requirement (in cubic feet) and divide by the kit’s stated yield in cf to determine how many kits you may need.
Yes, but care must be taken to preserve the hoses and valves. For storage times longer than 3-4 days between sprays, call us to learn more detailed instructions.
It is highly recommended to wear a P95 two compartment organic respirator. Also, installers should wear chemical-resistant gloves, eye protection, and protective clothing.
The right kit depends on your application, desired R-value, project size, and whether you need closed-cell, open-cell, slow-rise, channel-fill, or high-density foam. Contact our team for help selecting the best option for your project.
