[mikro] rašė: > 1730-8520 WS Sub floor that will be flat to within the subfloor must be flat within ½ inch over 10 feet but there must be no humps, dips or sudden changes in elevation within that distance (This deviation will be a gradual rise in the sub floor) that the sub floor will not deflect beyond the above 3/16’’ over a 10’ area from normal foot traffic and or furniture. All Sub Floors Must Be: Clean – swept or vacuumed and free of dirt and debris Level/Flat – ½” over a 10’ span (patch depressed areas and sand or grind down raised areas) this ½” is to be a gradual rise or a gradual depression. Structurally Sound – nail or screw areas that are loose or squeak and replace damaged areas that are loose or have been damaged by moisture Joist spacing- may not exceed 16’’ spread. Deflection is the amount of movement in the sub floor that is felt when you walk on the floor. Deflection of the sub floor must be held to a minimum. Deflection may not exceed the flatness spec. of ½” over a 10’ area. The deviation in flatness of the sub floor added to the deflection of the sub floor must not exceed 3/16’’ over 10’. Dry – check moisture in the sub floor (see below) All manufactured housing applications require a 6-8mil polyethylene moisture barrier. See approved “Belly Wrap” Applications IPO moisture barrier for all product with preattached underlayment Concrete sub floors Concrete sub floors require a moisture test prior to installation of Alloc products. The maximum allowable reading of a calcium chloride test is 5lbs./24hrs./1000 sq. ft. Radiant Heat (N/A) Radiant heat systems must be operating for a minimum of three weeks prior to the installation of Alloc flooring. The system should be turned off at the time of installation, or if in winter, should be set at exactly 65 degrees Fahrenheit for a minimum of 48 hours prior to installation. After the installation is complete, or when turning on the radiant heating system from a cold start, the operating temperature can be increased by a maximum of 5 degrees Fahrenheit in a 24-hour period. The maximum allowable surface temperature for Alloc floors is 80 degrees Fahrenheit. This is equivalent to 60 watts per square yard – remember that rugs placed over the floor will increase the surface temperature under them. Alloc floors are not suitable for installation over radiant heating systems that otherwise expose the floor to wide variations in temperature. An approved Alloc moisture barrier (specs = 1/16”@ 25% comp. >5.7PSI; 1/8”25% comp.>7.12”PSI) is required over radiant heat floors. Na ir užsiknisau cituoti: http://www.alloc.com/usersimage/section/10/install.pdf