Kelden Construction Ltd. - Produits

Application Details: Spray-Applied Polyurethane Foam insulation (SPF) is widely used in exterior walls, the underside of roof decks and in the overhang areas of buildings due to its excellent insulating characteristics as well as its function to serving as a good air and vapour barrier. The test results provided by a recognized independent testing laboratory exceed the physical properties of CAN/ULC S705.1-01 and indicate that the Demilec closed cell medium density SPF meets the NBC minimum performance levels to serve as thermal insulation, air barrier and vapour retarder when applied at a specific density and thickness, according to the conditions described in the CAN/ULC 5705.2 Standard and the intent of National Building Code. Section 9.19.1.1 of the National Building Code restricts the use of insulation at the underside of the roof sheathing without ventilation as the interior vapours may reach the cold areas past the insulation and cause condensation. However it has not been known as a problem in the case of medium density closed cell polyurethane foam insulation. The SPF foam insulation when applied at certain thickness (50mm and more) provides good air and vapour barrier characteristics_ The Vapour Penneance of Demilec's SPF at 50 mm (core) is 38 ng/Pa*s*m2. Properly detailed and applied foam insulation creates a homogeneous layer, which resists the warm air and vapour movement into the cold areas and thus significantly reduces the possibility of excessive moisture accumulation at the cold areas and condensation. The risk of moisture accumulation is further reduced if the asphalt shingles serve as roofing membrane as the roof shingles allow drying of the roof sheathing. It is therefore our opinion that the use of Demilec's Sprayed in Place Polyurethane foam is an acceptable alternative to the Nation Building Code Section 9.19.1.1. when given the insulation is used only in the areas where asphalt shingles are installed as roofing membrane and no vapour barrier is installed between the insulation and roofing membrane. The application of polyurethane foam insulation to the exterior walls, at the rim joint area, floor projections, attics, underside of roof sheathing and at the inside of concrete foundation wall without polyethylene vapour barrier is acceptable as the foam insulation, when applied at 50mm thickness meets the vapour barrier performance criteria of maximum 60 ng /Pa.s.m2. as setout by National Building Code. The increase in thickness beyond 50nun further increases its resistance to vapour diffusion therefore when applied at a thickness necessary to achieve the required diffusion resistance at these locations, the need of a separate vapour barrier, is eliminated. The application of SPUF is considered even better than 6 mil polyethylene in the rim joist area as it is possible to achieve a layer of the foam vapour barrier well sealed at the perimeters which is hardly possible in the case of polyethylene membrane. which is usually left unsealed at the perimeters between the joists. The polyurethane foam insulation is however combustible therefore it must be covered with a thermal barrier as required by Section 9.10.17.10 or 3.1.5.12 of NBC. A 1/2" gypsum board or a spray-applied fire proofing overlay applied at a thickness and density necessary to achieve the required fire rating can satisfy that requirement.

SPRAYON is an equivalent product to Monoglass Spray-applied insulation, Thermacoustic Spray-applied insulation and K-13 Cellulose Wet-spray insulation (category 7215). SPRAYON spray- applied insulation and In addition, SPRAYON has a stronger environmental value proposition than other competitive spray applied systems: SPRAYON can contribute up to 8 points to the overall LEED rating of a project - contributing in the following areas: Optimize Energy Efficiency, Resource Reuse, Recycled Content, Local / Regional Materials, Rapidly Renewable Materials, Low Emitting Materials; SPRAYON is formaldehyde free; SPRAYON is certified to contain not less than 50% post consumer recycled material; SPRAYON uses a state-of-the-ad acrylic adhesive that has virtually no VOC emissions; SPRAYON is naturally non-combustible and does not require harmful chemicals to prevent it from burning, unlike cellulose products that are coated with harmful fire retardants; SPRAYON reduces heating and cooling costs and decreases greenhouse gas emissions - providing thermal values of R3.8 / inch. SPRAYON is safer than many competitive spray-applied systems: SPRAYON is odorless, non-toxic, non-corrosive and completely inorganic; SPRAYON is completely benign and can be used uncovered in public areas such as schools and hospitals; SPRAYON is inorganic and does not require harmful chemicals to achieve a flamespread rating of 0 and a smoke developed rating of 0; SPRAYON is white in color, unlike cellulose, which reflects light and makes poorly light areas such as underground parking facilities brighter and safer. Thank you for your consideration of this matter. Please sign and date below and fax back to Should you have any questions, please do not hesitate to give me a call. SPRAYON is an inorganic product that is naturally non-combustible and does not require harmful fire-retardant chemicals like cellulose products. Cellulose is an organic substance such as paper and can be treated with fire retardant materials to ensure that they burn slowly. Cellulose is rated as a low flame spread product but can never be classified as a non-combustible because of its flaming time. Only inorganic materials or mixtures containing a very small organic component can be rated non-combustible according to industry standards. SPRAYON achieves a flame spread rating of 0 and a smoke developed classification of 0 as per CAN/ULC S114. SPRAYON spray-applied thermal and acoustical insulation is an engineered product designed to meet the rigorous demands of the commercial and residential building sectors. In manufacturing the product, we did not loose site of what is truly important - the environment. SPRAYON's Versatility: SPRAYON bonds to most substrates (including wood, drywall, concrete and fiber board insulation); SPRAYON can be applied to horizontal and vertical surfaces; SPRAYON can be applied to 6" (R23) on horizontal and 7" (R27) on vertical without the need for expensive mechanical fastening; SPRAYON provides excellent thermal protection (R3.8 / inch as per ASTM C 177-97); SPRAYON has exceptional sound control properties for acoustical applications ( NRC rating of 1.05 2.5"); SPRAYON is extremely versatile and can be used in under ground parking applications, metal buildings, theaters, arenas, gymnasiums and other commercial applications such as high rise soffits; SPRAYON can be used in hard to reach, hard to insulate areas and does not require expensive framing.