ANNEXSupplementary provisions
ANNEX The tables set out in this Annex, list construction products and/or materials which satisfy all of the requirements for the performance characteristic reaction to fire without need for testing. Table 1 CLASSES OF REACTION TO FIRE PERFORMANCE FOR WOOD FLOORING Material ( 1 ) , ( 7 ) Product detail ( 4 ) Minimum mean density ( 5 ) (kg/m 3 ) Minimum overall thickness (mm) End-use condition Class ( 3 ) for floorings Wood flooring and parquet Solid flooring of oak or beech with surface coating Beech: 680 Oak: 650 8 Glued to substrate ( 6 ) C fl - s1 Solid flooring of oak, beech or spruce and with surface coating Beech: 680 Oak: 650 Spruce: 450 20 With or without air gap underneath Solid wood flooring with surface coating and not specified above 390 8 Without air gap underneath D fl - s1 20 With or without air gap underneath Wood parquet Multilayer parquet with a top layer of oak of at least 5 mm thickness and with surface coating 650 (top layer) 10 Glued to substrate ( 6 ) C fl - s1 14 ( 2 ) With or without air gap underneath Multilayer parquet with surface coating and not specified above 500 8 Glued to substrate D fl - s1 10 Without air gap underneath 14 ( 2 ) With or without air gap underneath Veneered floor covering Veneered floor covering with surface coating 800 6 ( 2 ) Without air gap underneath D fl - s1 Table 2 CLASSES OF REACTION TO FIRE PERFORMANCE FOR SOLID WOOD PANELLING AND CLADDING Material ( 18 ) Product detail ( 12 ) Minimum mean density ( 13 ) (kg/m 3 ) Minimum thicknesses, total/minimum ( 14 ) (mm) End-use condition ( 11 ) Class ( 10 ) Panelling and cladding ( 8 ) Wood pieces with or without tongue and groove and with or without profiled surface 390 9/6 Without air gap or with closed air gap behind D - s2, d2 12/8 D - s2, d0 Panelling and cladding ( 9 ) Wood pieces with or without tongue and groove and with or without profiled surface 390 9/6 With open air gap ≤ 20 mm behind D - s2, d0 18/12 Without air gap or with open air gap behind Wood ribbon elements ( 15 ) Wood pieces mounted on a support frame ( 16 ) 390 18 Surrounded by open air on all sides ( 17 ) D - s2, d0 Figure a Profiles for solid wood panelling and cladding Text of image Total thickness Minimum thickness at any point of the profile Figure b Maximum exposed area of wood ribbon element 2n (t + w) + a ≤ 1,10 Text of image n = number of wood pieces per meter t = thickness of each wood piece, in meter w = width of each wood piece, in meter a = exposed area of wood support frame (if any), in m 2 , per m 2 of wood ribbon element ( 1 ) Mounted in accordance with EN ISO 9239-1, on a substrate of at least Class D - s2, d0 and with minimum density of 400 kg/m 3 or with an air gap underneath. ( 2 ) An interlayer of at least Class E and with maximum thickness 3 mm may be included in applications without an air gap, for parquet products with 14 mm thickness or more and for veneered floor coverings. ( 3 ) Class as provided for in Commission Decision 2000/147/EC Annex Table 2. ( 4 ) Type and quantity of surface coatings included are acrylic, polyurethane or soap, 50 - 100 g/m 2 , and oil, 20 - 60 g/m 2 . ( 5 ) Conditioned according to EN 13238 (50 % RH 23 o C). ( 6 ) Substrate at least Class A2 - s1, d0. ( 7 ) Applies also to steps of stairs. ( 8 ) Mounted mechanically on a wood batten support frame, with the gap closed or filled with a substrate of at least class A2 - s1, d0 with minimum density of 10 kg/m 3 or filled with a substrate of cellulose insulation material of at least class E and with or without a vapour barrier behind. The wood product shall be designed to be mounted without open joints. ( 9 ) Mounted mechanically on a wood batten support frame, with or without an open air gap behind. The wood product shall be designed to be mounted without open joints. ( 10 ) Class as provided for in Table 1 of the Annex to Commission Decision 2000/147/EC. ( 11 ) An open air gap may include possibility for ventilation behind the product, while a closed air gap will exclude such ventilation. The substrate behind the air gap must be of at least class A2 - s1, d0 with a minimum density of 10 kg/m 3 . Behind a closed air gap of maximum 20 mm and with vertical wood pieces, the substrate may be of at least class D - s2, d0. ( 12 ) Joints include all types of joints, e.g. butt joints and tongue and groove joints. ( 13 ) Conditioned according to EN 13238. ( 14 ) As illustrated in Figure a below. Profiled area of the exposed side of the panel not more than 20 % of the plane area, or 25 % if measured at both exposed and unexposed side of the panel. For butt joints, the larger thickness applies at the joint interface. ( 15 ) Rectangular wood pieces, with or without rounded corners, mounted horizontally or vertically on a support frame and surrounded by air on all sides, mainly used close to other building elements, both in interior and exterior applications. ( 16 ) Maximum exposed area (all sides of rectangular wood pieces and wood support frame) not more than 110 % of the total plane area, see Figure b. ( 17 ) Other building elements closer than 100 mm from the wood ribbon element (excluding its support frame) must be of at least class A2 - s1, d0, at distances 100 - 300 mm of at least class B - s1, d0 and at distances more than 300 mm of at least class D - s2, d0. ( 18 ) Applies also to stairs.