Insulfoam, a division of Carlisle Construction Materials, is a leading manufacturer of expanded polystyrene (EPS) insulation products. The company, established over 50 years ago, specializes in block-molded EPS, offering a wide range of products designed for building insulation systems. Insulfoam R-Tech is a specific type of engineered EPS intended for both interior and exterior sheathing applications. This article details installation instructions and material considerations based on available documentation, focusing on proper fastening techniques, material handling, and compatibility with adhesives and sealants. The documentation emphasizes the importance of protecting the material from ignition sources and solvent-based products.
Material Overview and Manufacturer Information
Insulfoam operates as a division of Carlisle Weatherproofing Technologies, a subsidiary of Carlisle Companies (NYSE: CSL). The company identifies itself as the nation’s largest manufacturer of block-molded expanded polystyrene (EPS). Insulfoam and R-Tech are registered trademarks of the company. Documentation indicates a commitment to providing high R-value insulation at a minimal cost. The company’s contact information, as provided in the documentation, includes a toll-free number (800-248-5995) and a website (www.Insulfoam.com). The manufacturing facility referenced is located at 19727 57th Ave. E., Puyallup, WA 98375, with a fax number of (253) 271-3265.
Installation Procedures: Fastening Methods
Proper installation of Insulfoam R-Tech requires specific fastening techniques to ensure structural integrity and optimal performance. The documentation details acceptable fastener types and spacing. Insulation fasteners, including cap nails, ring-shank nails (minimum 6d), and 15⁄16" diameter plastic washers, should be installed no more than 24 inches apart on center. Alternatively, minimum 1.0" wide crown nails or No. 16 gauge staples can be used, spaced at 6 inches on center around the panel perimeter and 16 inches on center in the field (the central area of the panel).
Exterior window flanges require special attention. These areas should be treated similarly to vertical and horizontal foam seams and must be taped to maintain a continuous insulation barrier. Vertical seams in the foam sheathing should be avoided above the head of any window or door opening. Caulk should not be installed under the bottom window flange. The top window flange, or drip cap if present, should be covered with head flashing, which can be either metal flashing or self-adhering membrane.
Material Handling and Storage
The documentation stresses the importance of proper material handling and storage to maintain the integrity of Insulfoam R-Tech. Boards should be stored in a protected, covered, and dry location on the job site. The amount of time the boards are left exposed before being covered by cladding material should be limited. This precaution minimizes the risk of damage from the elements and ensures optimal performance.
Safety Considerations and Fire Retardancy
Insulfoam R-Tech contains a flame retardant; however, the documentation explicitly states that it should be considered combustible. Therefore, the material must not be exposed to sources of ignition. A critical warning is repeated throughout the documentation: highly solvent extended mastics, coal-tar products, and their vapors must not come into contact with Insulfoam R-Tech. This is due to the potential for these substances to damage or degrade the EPS material.
Adhesive Compatibility
Insulfoam does not provide a warranty regarding the suitability of adhesives used with its products. The documentation strongly advises users to consult with the adhesive manufacturer to confirm compatibility between their adhesive or sealant and expanded polystyrene (EPS), specifically for the intended application. This is a crucial step to ensure a secure and long-lasting bond without compromising the integrity of the insulation.
Product Identification and Trademarks
The documentation clearly identifies “InsulFoam” and “R-Tech” as trademarks of Insulfoam. The product is described as “Engineered EPS – Versatile – Durable – Sustainable.” The documentation is dated 2015 and includes the company’s address and contact information.
Conclusion
Insulfoam R-Tech EPS insulation offers a cost-effective solution for building insulation. Proper installation, as outlined in the provided documentation, is critical for maximizing performance and ensuring long-term durability. Key considerations include appropriate fastening techniques, careful material handling to prevent damage, and strict adherence to safety guidelines regarding ignition sources and adhesive compatibility. Consulting with adhesive manufacturers to verify compatibility is essential, as Insulfoam does not warrant the suitability of third-party adhesives. The material’s combustible nature necessitates caution and avoidance of contact with solvent-based products.