Product #: DRCIMAT1
| Quantity | 1+ | 30+ |
|---|---|---|
| Price (each) (ex. VAT) | £12.40 | £6.82 |
| Price (each) (inc. VAT) | £14.88 | £8.18 |
DURAL DURABASE CI matting is designed to alleviate stress caused by lateral movement within substrates normally viewed as unstable. These would include green screeds where shrinkage is still occurring, fresh power floated concrete floors, timber based substrate such as Chipboard, Floorboards, Particleboard and MDF, metal surfaces and asphalt.
DURAL DURABASE is suitable for use with all under floor heating systems.
Applying a rigid floor covering to such surfaces would normally be difficult. DURAL DURABASE CI matting is a simple fixing method to achieve satisfactory results with the minimum of cost and labour. The lateral movement of such surfaces would normally cause tiles to de-bond or crack.
DURABASE CI matting, in conjunction with tiles, serves to decouple the tiles and bridge any cracks. It also allows water vapour pressure to be compensated for if there is residual moisture.
DURABASE CI decouples the flooring from the foundations. Any small cracks can also be bridged so that they do not affect the tiling. This makes it ideal for renovation work.
Due to the structure of the matting (nodules) channels are created, which can act to equalise water vapour pressures.
DURABASE CI mats are made of yellow polythene with a grid of texturing nodules and a supporting polypropylene fleece layer on the back. This combination means the matting is resistant to most chemicals (e.g. salts, acids, alkalis, solvents and oils, although when the locations are seriously at risk from chemicals, it is recommended that a professional assessment be made for the use of the mats).
DURAL DURABASE CI SOLVES THESE PROBLEMS
Cracks in the subfloor
When renovating older surfaces, cracks can be present in the subfloor, making it impossible to install a safely watertight new tiled surface.Stresses in the subfloor
In the subfloor beneath the flooring it is possible for tensions to appear in materials, depending on the design and the kind of materials they are. These can then be transferred to the tiling and cause cracks to appear in it. For instance, with concrete, even after six months or after many years of expansion and contraction, deformation can occur. Cement and hot screed surfaces can also change after tiles have been laid. Chipboard or plywood too can deform considerably due to absorption of moisture.Damp from the subfloor
When laying on top of anhydrite screed, residual moisture from the screed itself can collect under the tiles and damage the adhesive layer.
USING DURAL DURABASE CI WITH UNDERFLOOR HEATING
The increased stress within the installation caused by thermal movement can cause problems to the installer. Separation or Isolation Membranes are ideal for removing shear stress from tiled installations. This removes a major obstacle to fixer confidence in installing these systems.
By absorbing this stress the membrane allows the tiled surface to remain intact. The air spaces under the membrane have two benefits, they allow residual moisture to gradually escape therefore helping to prevent cracks forming in the substrate. The air spaces also allow the heat to be spread evenly across the floor surface making the heating action more general and effective.
DURAL DURABASE CI matting requires no special precautions when used within a heated installation.
The only requirement is the selection of an adhesive suitable for use with the substrate. This adhesive must be capable of bonding to the substrate and achieving a mechanical fix with the fleece on the underside of DURAL DURABASE CI matting.
The electrical heating elements should be installed underneath the DURAL DURABASE CI matting following the manufacturer' instructions. Standard thin set adhesive can be used to fix tiles in place. A modified flexible grout should be used to complete the installation.
PRODUCT DATA
| PRODUCT | CI decoupling mat |
|---|---|
| MATERIAL | Textured foil = HDPE, Backing fleece = PP |
| MATERIAL THICKNESS | 0.5 mm approx. |
| HEIGHT OF MATS | 3 mm |
| ?WIDTH OF ROLL | 100 cm |
| ?LENGTH OF ROLL | 30 m |
| COMPRESSIVE STRENGTH | 350 kN/m2 approx. |
| TENSILE STRENGTH | 610 N approx. (5 cm) |
| TEMPERATURE RANGE | – 40 °C to + 80 °C |
| COLOUR OF MATS | Textured foil = yellow, backing fleece = white |
| MATERIAL PROPERTIES | Resistant to chemicals, decay, fungus and bacteria |
| APPLICATIONS | Underlay matting for decoupling and compound sealing of tiled floors |
INSTALLATION
The floor making up the foundation must be free of any material that would impair adhesion. It must be level and able to bear weight. Any evening out to be done must be completed before DU- RABASE CI is laid. The adhesive is chosen depending on the nature of the foundation. The adhesive must bond to the foundation and to the backing fleece of the DURABASE CI mats. For most surfaces a water-based C2 flexible mortar can be used. The mortar is applied to the foundation using a serrated trowel (4 x 4 mm). Important: do not use larger sized serrated trowels or the decoupling effect of the CI matting will be impaired.
Having been cut to size, the rolls must quickly be laid over the entire surface with the fleece backing on the adhesive. The rolls can be pushed into place using a roller or other suitable tool. Make sure this is done before the adhesive is dry. To avoid damage to the rolls being laid, it is recommended that they be protected from loading by laying boards on them. Other protective measures may be necessary, too, e.g. protection from direct sunlight or rain in outdoor locations. Any water collecting in the texturing must be removed before applying thin-bed mortar.
Always cover over junctions between mats with DURABASE WP or DURABASE WPFB tape.
As soon as the DURABASE CI matting has been laid, tiles can be laid on top of it using a thin-bed technique and a thin-bed mortar appropriate to the flooring. Practically, it is advisable to apply mortar to the round depressions in one working step and then apply thin-bed mortar and roughen it in another. The work can also be done in such a way that the application of the top mortar layer only starts after the initial application has hardened. The tiles must be embedded in the mortar to cover the entire surface. The depth of the serrations on the trowel must be appropriate to the tile format. Make sure this is all done before the adhesive is dry. For flooring out of doors, the laying of tiles should only begin after the mortar for the CI underlay has properly hardened.
Where expansion joints are used to delineate areas, edges and junctions, professional regulations should be observed. Flooring outdoors, floors using large-format tiles or any flooring subject to heavy loading should be laid using a combined installation procedure.
Due to the almost infinite combination of substrate and variations in ceramics, slates, marbles and other surfaces that could be used on a project it is impossible to provide a definitive guarantee for any specific project. However if care is taken to ensure that any vertical flexing of the substrate is removed then a very high chance of success is likely. DURAL is prepared to guarantee the performance of the product where we have been asked for our opinion as to its success. This would always be subject to the removal of vertical flex and that all work was carried out under our fixing instructions and with due professional care and diligence. In short the product does not work miracles it can only function correctly where it has been fixed in the correct manner.
For specific peculiarities depending on the situations, it is recommended that a professional assessment be made for the use of the mats with regard to the expected concentrations, temperatures and durations of exposure.
