Closed Cell Spray Foam

One of the Best Performing Insulations Available Today

Closed cell spray foam, which is often referred to as “medium density” or “2 lb foam” can achieve a high level of thermal protection in space restricted areas. With thermal protection factor of R-7.0 per inch closed cell foam can often be the best answer to create a thermal envalope. With a closed cell content more than 90% this product cures within minutes and can add structural integrity to the assembly it is utilized in. When used at the right thicknesses closed cell spray foam can also act as a moisture barrier and an air barrier. Closed cell foam is generally more expensive than other insulation methods, however the up-front cost of using this top of the line product can lead to massive energy and cost savings down the road.

As a licensed applicator, United Spray is ready and eager to help you integrate the closed cell spray foam into your next project. Contact us to start a conversation.

Services we provide

Trade Scopes

  • Closed Cell Spray Foam

CSI Codes

  • 072119 - Foamed-In-Place Insulation
  • 072736 - Spray Foam Air Barrier
Render of closed cell spray foam insulation applied on wall
  • 01

    High R-Value

    Provides the highest thermal resistance per inch in the foam industry at average R-7.0 per inch

  • 02

    Moister Barrier (when applied greater than 1.5”)

    Prevents moister intrusion and migration in damp climates

  • 03

    Air Barrier (when applied greater than 1.5")

    Approved by ABAA for use to meet air barrier requirements

  • 04

    Versatile Application

    Fills every crack and void in wall or ceiling proving a complete seal

United Spray in Action

Spray Foam insulation is a relatively new product in the construction field and is fast becoming the standard for thermal envelopes. The material is mixed on the project site and undergoes a chemical reaction during its installation requiring proper heat and pressures. Spray Foam installation is a delicate process requiring the proper equipment and training, hiring an inexperienced applicator can lead to health and safety concerns from improperly installed products that do not cure.

United Spray continuously invests in the latest foam reactors and employee training to ensure we give our clients a first class, on-ratio product.

Types of projects

Closed Cell Spray Foam is a versatile material that can be applied in many different constructions assemblies including, walls, floors, roofs, under slab and much more. Due to its water repellant nature closed cell can be installed to the interior or exterior side of the structure.

  • Exterior Walls
  • Masonry Walls
  • Under Slab
  • Freezers/Coolers
  • Foundations
  • Parking Garages
  • Roof Decks

Closed Cell Spray Foam Performance Overview

Thermal Performance

The Closed Cell Spray foam products that we install are all tested by ASTM to determine their performance characteristics. One of the most important of the ASTM tests that any foam undergoes is ASTM C 518 which determines its aged thermal resistance. All Closed Cell products have slightly different metrics, but generally provide an average of R-7/inch.

Moisture Control

One of the benefits that Closed Cell Spray Foam offers is that it can act as a vapor barrier when installed at a minimum thickness of 1.5". When applied as a continuous insulation to the outside of the structure, it can satisfy both air and vapor barrier requirements eliminating the need for other products.

Technical Data

ASTM Standards

  • ASTM D 1662 Core Density
  • ASTM C 518 Thermal Conductivity
  • ASTM E 283 Air Leakage
  • ASTM E 84 Surface Burning Characteristics
  • ASTM E 93 Water Vapor Permeance
  • ASTM D 2126 Dimensional Stability
  • ASTM D 2856 Closed Cell Content

2009 IBC Section 2603.4 Thermal Barrier

Due to its combustible nature, it is required that all Closed Cell Polyurethane Foams be separated from the interior of a building by a thermal barrier.

Drywall generally functions as this barrier however in cases when foam remains exposed an Intumescent Coating must be installed

ASTM C 518 - Thermal Conductivity

R-Value Avg 7.00 per inch

Manufacturers and Products

United Spray takes pride in working with the best available materials and manufacturers

For a full list of spray foam used

Spray Foam Solutions