FOAM INSULATION

THERMAX^TM Foamboard

THERMAX^TM brand insulation is a polyisocyanurate rigid board insulation with an R-value of 6.5 per inch. This product has FM 4880 class 1 wall and ceiling approval for fire exposure and can be left exposed in both the wall and ceiling providing a nice aesthetically pleasing look to the interior as well as increasing energy efficiency.

The Dow Chemical Company produces THERMAX^TM Sheathing and THERMAX Insulation/Finish Boards, including White Finish (formerly AgTherm), Metal Building Board, Light Duty, Heavy Duty and Heavy Duty Plus, all are manufactured to meet the following specifications. Compliance to ASTM C-1289-06 "Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board", Type I, Class 2 and Federal Specification HH-I-1972/1, Class 2.

What Does Type 1 / Class 2 mean?
Type 1 means Faced with Aluminum foil on both major surfaces of the foam core. Class 2 means Glass fiber reinforced core foam.

NOTE: Dow currently is the only Polyiso foam insulation board manufacturer that makes Type 1 / Class 2 products. The combination of foil facers, glass fiber reinforced core and the unique free-rise process contributes to a product with better foam consistency, durability and fire performance versus generic ISO products.

Specific Approval in IRC & IBC for exposed use without a thermal barrier:
In the 2003 IRC section R 318.3 "Specific Approval" section which states "Plastic foam not meeting the requirements of Sections R 318.1. and R 318.2 may be specifically approved on the basis of one of the following approved tests: ASTM E 84, FM 4880, UL 1040, ASTM E 152, or UL 1715, or fire tests related to actual end-use configurations. The specific approval maybe based on the end use, quantity, location and similar considerations where such tests would not be applicable or practical. Below THERMAX^TM meets the majority of those tests listed in the IRC. In the IBC 2003 THERMAX^TM meets the requirements of Chapter 26 Plastics, specifically under section 2603.5.3 "Potential Heat" per NFPA 259 and section 2603.8 "Special Approval" for use without a thermal barrier covering.

GREEN GUARD - High Density Moisture Resistant Extruded Polystyrene

This high density moisture resistant extruded polystyrene is perfect for all applications especially when a high compressive strength is needed.

Produced from virgin and recycled polystyrene Green Guard is one of the most environmentally friendly foam products on the market. Thickness from 1/4" (fanfold) to 3" is standard.

CELOTEX - Tuff-R & Thermax Foil Faced Insulation Board

This is the most energy-efficient insulation board available. Its uniform, closed-cell structure is especially resistant to the flow of heat, and the laminated aluminum facings provide an effective moisture barrier.

These products come in a variety of finishes for both concealed and exposed applications and are especially recommended for agricultural, commercial and industrial buildings.

Products are available in thicknesses from 1/2" to 4".

FOAMULAR - Closed-cell Extruded Polystyrene Foam

This tough, closed-cell extruded polystyrene foam has had a reputation as a dependable product.

Its superior resistance to water assures long-term R-value retention in such applications as foundation perimeters, wall insulation and drywall laminate.
Available in a broad range of densities for any application.

Fan fold backer board is also available for your needs.
Call for details.

FIRESTONE ISO-R - High Thermal Efficiency

If you're looking for high thermal efficiency at low cost, here it is. Firestone ISO-R is designed for easy installation in the following applications:

• New frame wall construction.

• Cavity wall insulation in new masonry construction.

• Interior basement and crawl space insulation covered with minimum 1/2" gypsum board.

• Insulation between exterior stucco finish and face brick, or frame wall construction.

•  Under roof shingles over roof decks, in exposed beam and cathedral type ceilings and A-frame construction.

• Under slab thermal construction.

•  Retrofit behind new exterior siding.

• Retrofit behind new interior finish of minimum 1/2" gypsum board.

Product Availability
Firestone ISO-R is available in standard 4' x 8' and 4' x 9' sections with thicknesses from 1/2" to 4". Other sizes and thicknesses may be special ordered. Minimum order quantities may apply.