InsulStar®
InsulStar® is a high-performance 2lb/ft3 density, closed-cell polyurethane spray foam insulation for residential construction applications.as a liquid to residential walls, ceilings, attics or floors.
How InsulStar Works
InsulStar® foam insulation is a two-part liquid, formulated from renewable agricultural resources, that is sprayed in place by specially trained GoldStarSM contractors. This liquid quickly expands, filling all gaps and voids, and cures to form a fully adhered, solid, monolithic insulation envelope that is a highly effective air barrier and moisture vapor retarder. InsulStar’s® high R-value allows designers to reduce the depth of exterior walls and still obtain high energy efficiency.
The Challenge
Builders and homeowners are increasingly aware that without a proper air and moisture barrier, homes are vulnerable to water damage, air leaks, and condensation that can lead to mold growth. This not only threatens the building structure but also increases energy costs and reduces comfort.
The Solution
InsulStar® is a 2lb/ft³ density, closed-cell polyurethane foam insulation that is applied as a liquid to walls, ceilings, attics, and floors. It expands and cures in place, forming a seamless insulating membrane that blocks air, noise, and moisture. The closed-cell structure controls moisture vapor, preventing condensation and mold growth. InsulStar® is also antimicrobial, inhibiting bacteria and fungus growth (ASTM C 1338), though it doesn't protect occupants from external mold or spores.
The End Result
InsulStar® provides superior insulation, improving energy efficiency and reducing heating and cooling costs. By insulating directly to the roof deck, previously unused attic space can become valuable living areas—like bonus rooms or closets—adding market value with minimal cost. It’s a high-performance, low-maintenance solution for a more comfortable, energy-efficient home.
Find InsulStar Technical Documents
Why InsulStar?
Higher R-Value
Provides a higher R-value than conventional insulation, lowering energy bills and reducing energy consumption, thereby lessening your carbon footprint.
Structural Strength
Strengthens walls and increases overall structural integrity by adhering and bonding to the wall surface, so buildings last longer and don’t need to be replaced as often.
Improved Air Quality
Helps block dust and pollutants, and inhibits mold and bacteria growth (per ASTM C1338), contributing to healthier indoor air.
Resource Conservation
Requires only 2” x 4” studs, reducing lumber use and saving an average of two to three trees per home compared to 2” x 6” studs used with batt insulation.
Design and Durability
Does not settle, shrink, compress, or sag, maintaining insulation efficiency for the life of the structure.
Environmentally Friendly
Contains no ozone-depleting chemicals and is recognized by the EPA for contributions to ozone protection.
InsulStar SPF Typical Physical Properties
Description
Closed-cell spray foam polyurethane foam
Free Rise Core Density
ASTM D1622
2 pcf
Closed Cell Content
ASTM D6226
>90%
R-value @ 1”
ASTM C518
7.1
Max Service Temperature
180°F
Air Perm @1/2” & 75 Pa
≤ 0.02 perms
ASTM E2178
Moisture Vapor Perm
ASTM E96 @ 1”
1.3 perms
Compressive Strength
ASTM D1621
28 psi
Tensile Strength
ASTM D1623
45 psi
NFPA 285
Pass
The above values are average values obtained from laboratory experiments and should serve only as guide lines.
Recognized for Sustainability
Energy Star Partner
Montreal Protocol Award Winner
Awarded by United States Enviornmental Protection Agency (EPA)
White House Recognition
SmartSPF line of products for low global warming potential (GWP)
Intertek Sustainability
Certified Clean Air Gold
Member of the US Green Building Council
The Advantages of InsulStar for Residential Insulation
Solutions for Homeowners
- Significant savings on energy bills with an R-value of 7.1 per inch, reducing heating and cooling costs.
- Creates an air barrier that prevents leaks and energy loss.
- Functions as a vapor retarder to control moisture.
- Improves indoor air quality by blocking dust and pollutants.
- Reduces energy consumption and environmental impact.
- Reduces outside noise with a seamless, airtight barrier.
- Strengthens roof deck attachment against high winds, with Florida product and Miami Dade NOA approval.
- Enhances wall strength and structural integrity.
- Acts as a secondary water barrier and FEMA Class 5 flood-resistant material.
Solutions for Designers
- Adaptable to hard-to-insulate, uniquely shaped designs.
- Easy installation to stay under budget and ahead of schedule.
- Provides a seamless, fully adhered insulation envelope.
- Watertight within seconds of application.
- Can be used to convert unused attic space into living areas.
- Allows for non-vented crawl space insulation for greater energy savings.
- Building code compliant (ESR #1615) and installed by certified GoldStar contractors.
- Damp-proofs by forming a seamless membrane between inner and outer walls.
About Us
NCFI has been manufacturing high-performance spray foam insulation (SPF) products for residential, agricultural, commercial, institutional, and industrial industries since 1967. Our spray foam insulation systems create extremely energy-efficient, comfortable, and safer environments for home and building owners and occupants. At NCFI, we work with you to find the polyurethane solution that works best for your needs and specifications.