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Vendor Name
Description
COFLEX CAJ By PROFILITEC
Collection: Coflex
Type: Technical expansion joint
COFLEX CAJ - The "invisible" expansion joint. It is considered as such due to its 5 mm top width which makes it look as if were part of the grouting joint. The harder plastic flange guarantees an excellent hold under the tile and will follow its movements in compression and expansion. Suitable for internal and external use and virtually maintenance free. The soft plastic is resistant to most relevant chemicals encountered in tile applications, to weathering, ageing and UV rays. Designed to divide big tiled areas in smaller bays. It will remain flexible and resistant to attacks of fungus and bacteria. The CAJ model offers a rather limited tile edge protection. Settlements of the structure, expansion and compression due to thermal excursion, shrinkage and structural bending are elements that create continuous movements and stresses in the flooring, which often generate problems of cracking or premature detachment of the covering. It is therefore advisable to provide an adequate grid of expansion joints during installation, choosing the type of joint and its location in consideration of the loads and stresses to which the coverings will be subjected, and the different coefficients of linear thermal expansion of the bedding and tiles and the possible interactions between different materials. The splitting of the surface and the screed underneath is in fact decisive in order to guarantee a workmanlike laying in both adhesive and traditional methods. Always provide for a joint: - In correspondence with a change in the substrate material and/or the joints. - At pre-existing discontinuities in the substrate, such as structural expansion joints and different screed blocks. - At fixed elements such as columns and doors. - At changes in the laying direction. - At points where the tiled surface meets walls or containing elements. The resulting modules should be as even as possible. In general, the proportion between the two sides should not exceed 2:1.