Heatlok HFO High Lift Closed-Cell Spray Foam Insulation

Heatlok HFO High Lift is a closed-cell spray foam insulation formulated to deliver an aged R-value of about 7.4 per inch while allowing up to a 6.5 in. lift per pass to help meet ceiling code faster. It leverages Honeywell Solstice HFO technology for ultra-low global warming potential and is designed for strong adhesion, good yield, and efficient application.

Key Features:

• High R-Value Performance: Aged thermal resistance of ~R-7.4 per inch (depending on installed thickness).
• High-Lift Application: Sprays up to 6.5 in. per pass to reduce labor time and speed code compliance.
• Moisture & Vapor Control: Tested WRB performance and functions as a Class II vapor retarder at 2 in. thickness.
• Code & Resiliency Credentials: NFPA 285 tested behind multiple claddings and meets FEMA Class 5 flood damage resistance requirements.
• Low-Impact Formulation: Uses Solstice HFO blowing agent technology (GWP 1) and is GREENGUARD Gold certified (low VOC).

Please check the Product Data Sheet Here

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What R-value does Heatlok HFO High Lift provide?
A: It provides an aged thermal resistance of approximately R-7.4 per inch (depending on installed thickness).

Q: How thick can I spray in one pass?
A: Up to a maximum 6.5 in. lift per pass.

Q: Is it considered a vapor retarder?
A: Yesat 2 in. thickness it is listed as a Class II vapor retarder.

Q: What temperature range can it be applied in?
A: 15100F (-938C).

Q: What makes it more environmentally friendly than traditional closed-cell foam?
A: It leverages Solstice HFO blowing agent technology with a GWP of 1 (99.9% lower than traditional blowing agents, per the manufacturer description).

Invisible insulation, unmistakable comfort.

Think of Heatlok HFO High Lift as the quiet architecture behind a beautifully finished roomsealing, insulating, and elevating comfort without asking for attention. Its standout advantage is the high-lift application, letting performance build quickly while supporting a cleaner, more efficient envelope. Use it to create calm, consistent temperatures in vaulted ceilings or unvented attic conversions where comfort can feel elusive. Its the kind of behind-the-walls upgrade that makes everyday living feel effortlessly luxe.

Upgrade your building envelope with Heatlok HFO High Lift for faster high-R insulation and a tighter, more resilient seal.