Spray foam will burn for the first 48 hours during the off gassing or curing period. Once it is cured it self extinguishes. The problem is it is a plastic and it will melt and if spray foam is consumed in a burning fire it gives off toxic fumes this is the reason for the required 15 minute burn barrier. Back to Top

Injection foam is totally expanded at the nozzle tip. Spray foam expands after the nozzle tip. Injection foam is simply plastic coated air bubbles, Spray foam is two chemical components sprayed at 1500 psi under high heat. Injection foam can be injected in a concealed space. Spray foam must be sprayed in a open cavity. Back to Top See similar questions...

In addition to sealing off eave areas to mitigate ice damming in many cases, spray foam insulation (several types are available) is the best choice for insulating new homes and for extensive remodeling projects, because of its air-sealing qualities. The amount of energy lost by convection (air movement through the building envelope) is much greater than what is lost by conduction (heat transfer through a solid). R-value is important, but it measures only heat lost by conduction. See similar questions...

Yes. We guarantee that the foam will give a minimum service life of at least 25 years. In fact, tests indicate that the product will have a indefinte service life and as long as the spray foam is not subjected to UV light from the sun it will last the life of the building. In the unlikely event you have a problem with the foam we guarantee that it will be repaired free of charge. See similar questions...

Spray foam is install at the same time as other insulations would be. After the mechanical work is done and inspected and before the drywall is installed. Back to Top See similar questions...

When cold LNG comes in contact with warmer air, it becomes a visible vapor cloud. As it continues to get warmer, the vapor cloud becomes lighter than air and rises. When LNG vapor mixes with air it is only flammable if it's within 5%-15% natural gas in air. If it's less than five percent natural gas in air, there is not enough natural gas in the air to burn. If it's more than 15 percent natural gas in air, there is too much gas in the air and not enough oxygen for it to burn. See similar questions...

We do not recommend spraying foam into areas that you cannot actually see. Foam expands in every direction. FOAM DOES NOT EXPAND IN THE PATH OF LEAST RESISTANCE. Expanding foam may bow, buckle or burst the area. If high-pressure expansion is a concern, you may be interested in our No-Warp Low-Pressure Window & Door Gun Foam, or our Quick-Cure Reduced Expansion Cylinders. See similar questions...

Spray foam insulation random air leakage and limits the penetration of outdoor allergens and pollutants. It also minimizes air movement and the accompanying moisture content, helping prevent condensation and reducing the potential for mold in your home. Our most popular spray foam product, Icynene, is 100% water-blown, is formaldehyde-free, and contains no harmful gases. See similar questions...

The main benefits are roof bonding and roof insulation and finacial savings over future roof repair bills and home heating costs. We can repair and bond a roof at much lower cost than a re-roof that will also offer excellent roof insulation qualities. Once bonded a roof will give 50 years or more of serviceable life and remain in good visual and working order. The foam allows the loft to be used as a room and eliminates water ingress, dust and drafts plus the house is much warmer. See similar questions...

Spray Foam Insulation has excellent sound absorption properties and sound transmission properties. For a 2" x 6" wood cavity insulated with Spray Foam Insulation the Noise Reduction Coefficient (NRC) is 0.75 and the Sound Transmission Coefficient (STC) is 39. See similar questions...

No! Spray Foam Insulation is a clean product. It meets off gassing requirements of CGSB 51.23-92 for new residential construction. No toxic or carcinogenic products were detected. The flame spread classification of Spray Foam Insulation as tested in accordance with CAN/ULC S102 is less than 500 and in accordance with ASTM E-84 is a class 1 (21) at a thickness of 6". The fire testing was conducted from the top of the Steinner tunnel without any product dripping during and after tests. See similar questions...

Yes, Spray Foam Insulation is an ecological product certified by an independent agency: "the Environmental Choice Program (EPC-40) of Environment Canada". See similar questions...

Yes, if the house roof design is detailed it be simpler to stick-frame the roof and use spray foam to achieve a superior thermal system. See similar questions...

Yes. Building codes provide for the use of spray polyurethane foam in the Foam Plastic section. This section of the code also describes the use of thermal barriers. See similar questions...

Not that we're aware of. We've looked at 20-year old spray foam projects and we have not observed any signs of deterioration. We expect the polyurethane foam system to insulate and seal your home for the life of the house. See similar questions...

It's not very practical due to the expense of the equipment involved. Spray foam application requires complex equipment and a skilled installer. Dwyer's has the experience necessary to do the job for you right! See similar questions...

Yes! Two pound foams are rigid and structural. Your walls will be more resistant to winds and you'll notice less creaking and shaking when doors are slammed or when the kids are romping about. See similar questions...

The open cell is an excellent wall foam and cathedral ceiling foam. Many like the open cell in cathedral ceilings because if the roof leaks it will leak through the foam and you have time to fix the roof before it rots. See similar questions...

It has excellent adhesion characteristics it will adhere to wood, metal, glass densglass just about any thing. It will not adhere to a wet surface, oily surface or plastic vapor barrier with vapor barrier it will curl. You can remove it with a wire wheel or a 3000 psi hot water pressure washer with a turbo tip. Urethane spray foam is the material that is used on the Space shuttle external fuel tanks they have trouble with the adhesion at 14000 mph. Back to Top See similar questions...

Sierra mass flow systems without the FM approval are not designed for use in hazardous or explosive environments. Do not confuse a “hazardous environment” with flowing gas inside a closed system, such as your plumbing, into pressure and flow measuring instruments. Customers regularly use the 800 series flow meters with flammable gases such as CH4, C2H6, C3H8, and H2 that is plumbed in accordance with proper safety measures. See similar questions...