2014-05 EXP INSTALLATION GUIDE KÄHRS FLOATING WOOD FLOORING WITH WOODLOC® 5S AND ACCESSORIES AB Gustaf Kähr Box 805 | S-382 28 Nybro Sweden Tel +46 (0)481-460 00 | Fax +46 (0)481-178 31 www.kahrs.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 2 CONTENT WOODLOC® 5S PAGE 3 Introduction The principle behind Woodloc® 5S INSTALLATION REQUIREMENTS FOR WOOD FLOORS PAGE 4 General General preparations Installation instruction Woodloc® 5S INSTALLING KÄHRS WOOD FLOORS OVER UNDERFLOOR HEATING PAGE 6 Installation WHAT TO CONSIDER BEFORE INSTALLATION PAGE 7 Scheduling installation Storage Installing boards in patterns Fixtures and fittings Planning floor installation Movement joints in wood floors Uneven subfloors
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 3 WOODLOC® 5S – THE ’NEXT GENERATION’ INNOVATION Kährs was the first company in the world to introduce a mechanical and glue-free joint system – Woodloc®. The benefits were clear: it was quick and easy to install, required no adhesive and it produced a perfect finish. Now Kährs is introducing the next generation – Woodloc® 5S.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 4 INSTALLATION REQUIREMENTS FOR FLOATING WOOD FLOORS General Wood is hygroscopic, ie, it is a “living” material. Depending on the ambient air humidity and temperature, the material either emits or absorbs moisture. This is associated with a change of volume (swelling or shrinkage). It is therefore important that there is an “expansion gap” or “movement joint” in between the floor and the wall and other fixed objects when a wood floor is installed floating.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 1 5 2 3 General preparations • Store the floorboards in their packaging. Figure 1. • Open the packs only when needed during installation. • Read the installation instructions carefully before installing. • The subfloor must be dry, level, clean and solid. Figure 2. Remove fitted carpets. For installing on foam (EPS), download our brochure Subfloor Requirements and Underfloor Heating at www.kahrs.com.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 6 INSTALLING KÄHRS WOOD FLOORS OVER UNDERFLOOR HEATING Make sure that all the necessary tests on the underfloor heating system have been completed before the flooring installation begins. Installation The working temperature (materials, subfloor and room air) during installation must be at least 15°C. As with installation where there is no underfloor heating, the relative humidity (RH) of the air must be between 30–60% before, during and after installation.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 7 WHAT TO CONSIDER BEFORE INSTALLATION Scheduling installation Wood floors must not be laid until all other work, e.g. painting, wallpapering and tiling, is completed. The site must have the correct RH. This avoids contamination and moisture damage to the floor. Installing floors is easier if architraves, etc., are fitted afterwards. Storage Wood flooring must be stored in an area where the RH is less than 60%.
e at i INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 8 A room with a width of 4 m should therefore have Note that the dimensions of the board a movement joint all round of 4skirting x 1.5 mm = 6 must mm never determine movement large floor betweenthe thesize floorofand all fixed joints. objects.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 9 WHAT TO CONSIDER WHEN INSTALLING Temperature and humidity conditions The working temperature when laying should be at least 15°C. This applies both to the boards and to the room air. The relative humidity of the air must be between 30–60% before, during and after installation. Opening packs The wood floor is supplied “furniture dry”. If packs are opened too early, the boards can absorb moisture and expand, which makes them difficult to fit together.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 10 WHAT TO CONSIDER AFTER INSTALLATION Spilt liquids must be wiped up immediately. This is particularly important for Beech and Hard Maple, because they move more than other species because of their greater sensitivity to moisture. Supplementary surface treatment We recommend to perform a first supplementary maintenance on oiled floors directly after installation. Use Kährs Satin Oil and follow the instructions on the package.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 11 INSTALLATION AND FITTING INSTRUCTIONS Installation instructions for vapour barriers and intermediate layers 1. Plastic sheeting, 0.2 mm age-resistant polyethene sheeting, is used as a vapour barrier and must be laid with an overlap of at least 200 mm. It is supplied folded double. The plastic sheeting must be as close to the parquet as possible in the construction but beneath the intermediate layer.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 12 Using tools and accessories 1. Kährs Handblock for Woodloc 5s is used for installing boards with Woodloc® joints. Positioning the boards requires only light taps on their edges. Hold the tapping block lengthways against the edge of the board. Keeping one end in contact with the edge of the board, tap the board with the block. This applies the correct force, and the board will not be damaged. 2.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 13 INSTALLATION INSTRUCTIONS FOR KÄHRS WOOD FLOORS WITH WOODLOC® 5S JOINTS Preparation • If the installation requires a vapour barrier, do not forget it. • First, calculate how many floor boards are required. If the last row is less than 30 mm wide, cut the first row, too. When installing floors with Woodloc® joints, it is easier if you start on the side with most doors. If there are doors along the short side of the room, begin each row of boards here.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 14 12. When three rows have been laid, the distance from the floor to the walls can be adjusted. Place wedges between the floor and wall. 12 13. The final board is then sawn to the correct width. Lay the final board on top of the penultimate board row with an approximate 5 mm displacement to the wall. Mark the section to be sawn using a piece of board with a locking strip. Lay it against the sawn board. Do the same with the next piece. 14.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 15 B 1–7. Reversed installation direction Insert the first board into the locking strip. Keep the angle at approximately 20–30°. Insert the second board into the locking strip. Slide the board so it fits with the short end of the first board. When joining the two short ends together you have to lift the short end of the first floor and slide the new board into connection. Continue with next row.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 16 D 1–7. Backwards installation, reversed When backward installation with reversed direction is required you install the first board by positioning it in the long side joint and tapping it into position using the hammering block. To install the following boards you first shift the locking tongue 5 mm before installing the board. When joining the two short ends together you have to lift the short end of the first floor and slide the new board into connection.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 17 INSTALLATION INSTRUCTIONS FOR KÄHRS 15 MM ON 150 KPA EXPANDED FOAM, FLOATING, IN DOMESTIC ROOMS INSULATED WITH EPS The foam sheets must comply with min. Group M, compression strength =150 kPa (density 30 kg/m3). It is important that they are designed for this application and that they comply with the requirements for thickness tolerance and density. The density must be within ±10%.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 18 FIXING INSTRUCTIONS FOR WOOD FLOOR ACCESSORIES Mouldings and trims Used to cover movement joints, expansion joints, etc. Kährs offers complementary mouldings for most wood species. Details re. wood mouldings, and aluminium trims, are available at www.kahrs.com Note the requirement for movement joints between the wood floor and level-, edge- and T-mouldings and surfacemounted nosings. • Level mouldings are used for transitions to a lower level.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 19 Instructions for supplementary products 1. Pipe collars are used to conceal movement joints at radiator pipes. The halves of the pipe collars are glued together around the pipe (see illustration). Size Ø 50 mm for 18 mm pipe. make-good repairs using Woodfiller. It has the same gloss value as satin lacquer and matt lacquer (30° and 10° Gardner, respectively). Glass bottle (30 ml) with brush. Protect from frost.
INSTALL ATION GUIDE FOR K ÄHRS WOOD FLOORS 20 KÄHRS POLICY ON FLAWS AND REJECTION OF MATERIAL DURING INSTALLATION Should there be any doubt concerning quality, grading or visual defects, it is important that a claim must be filed prior to installing the flooring product. Installing a product will be considered as an acceptance of its delivery quality. Gaps The gap width may be a maximum of 0.2 mm when installing wooden flooring.
