TILER, HANDYMAN, PROPERTY MAINTENANCE
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Tiling Weight limits
Posted on April 15, 2014 at 10:48 AM |
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Taken from The Tile Association The maximum weight of tiling which can be supported by a dry,
well-adhered plaster background is 20kg/m². This is equivalent to
ceramic tiles with a maximum thickness of 8mm plus tile adhesive or
natural stone tiles with a maximum thickness of 7mm plus tile adhesive
The weight of tiling to a plasterboard background direct
(without plaster skim) should not exceed 32kg/m². This is equivalent to a
ceramic tile and adhesive with a maximum thickness of 12.5mm and
natural stone and adhesive with a maximum thickness of 10mm.
It is important to emphasise that the weights quoted includes both the tile and adhesive.
Further advice should be sought either from the manufacturer,
regarding the suitability of the adhesives and grouts and also guidance
must be sought from board manufacturer regarding additional information
on recommended methods for the installation of boards.
The following table offers general guidance to some common
types of building board and the maximum recommended weights for tiling.
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Porcelain tiles
Posted on April 10, 2014 at 6:15 PM |
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Porcelain tiles
Porcelain tiles are ceramic tiles with a
water absorption rate of less than 0.5 percent that are used to cover
floors and walls. They can either be unglazed or glazed.
Large-scale production of porcelain tile is
undertaken in many countries, with the major producers being China,
Italy, Spain and Turkey. There are also countries undertaking
small-scale production, such as Australia and strong growth in
Brazil. The hardness of the tile can be rated from zero to
five according to ISO 10545-7 (also, ASTM C1027) test for surface
abrasion resistance of glazed tile, and this can be used to determine
suitability for various end use conditions. Polished
Porcelain tilesThe dense, hard surface of porcelain has made
polishing a viable alternative to a glazed surface. This means that a
tile can be fired, then a polish cut into the surface, creating a
shine without a glaze.
Disadvantages of Porcelain compared to ordinary ceramic tilesPorcelain is denser and therefore heavier to
handle; it is generally more expensive. Being harder, it is harder to
cut and drill, which may make fitting harder and more expensive.
Polished porcelain may need sealing, where ordinary glazed tiles do
not. AdhesivesSpecialised cements are necessary for installation
of porcelain tiles, and in the US specifications are set by the Tile
Council of America, and supported by the Tile Contractors Association
Porcelain, being denser and heavier than ordinary ceramic tiles,
needs a stronger adhesive to hold the weight on walls. Therefore
typical ready-mix adhesives are not recommended for porcelain. SealingWhen porcelain is first made, it is not absorbent,
but the polishing process for making the unglazed surface shiny cuts
into the surface, making it more porous and prone to absorbing
stains, in the same way as natural stone tiles do. Unless they have a
suitable, long-lasting treatment put on by the manufacturer, such as
nanotech treatment, polished porcelain tiles will need sealing.
Porcelain sealer’s are either water-based, which is cheaper, but
does not last as long, or solvent-based. |
Screed Drying times
Posted on April 9, 2014 at 5:11 PM |
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Tanking
Posted on April 9, 2014 at 4:55 PM |
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Tanking all wet areas prior to tiling is essential. Bal kit |
Tiling onto a wooden floor
Posted on April 9, 2014 at 4:37 PM |
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Tiling onto a wooden floor is a big no no , because it can cause your new tiles to crack with the natural movement and expansion you get with wood, The following over boarding should be used to decouple the tiles from the movement ... Hardiebackerboard Taken from there website click here
Why HardieBacker®
Only backer board with a lifetime warranty
Used in place of regular drywall, gypsum boards, glass mesh cement boards, and "floated" walls/floors
Basic Composition: 90% Portland cement and sand with selected additives
1-800-9-HARDIE Ditra taken from website click here for website Schlüter-DITRA 25 is a
polyethylene membrane with a grid structure of square cavities, each
cut back in a dovetail configuration and an anchoring fleece laminated
to its underside. Designed for tile and natural stone installations,
Schlüter-DITRA 25 serves as a waterproofing membrane, a vapour pressure
equalisation layer to accommodate moisture occurring at the underside of
the substrate and an uncoupling layer for problematic substrates. The substrate must be even and load bearing. To bond Schlüter-DITRA
25, use a bonding adhesive that is appropriate for the substrate. Apply
the adhesive using a 3 x 3 mm or 4 x 4 mm notched trowel. The anchoring
fleece on the underside of Schlüter-DITRA 25 must be fully engaged in
the adhesive to provide a mechanical bond to the substrate. Please
observe the open time of the bonding adhesive. Using the thin-bed method
and following all applicable industry standards, set the tile or stone
covering directly on the Schlüter-DITRA 25 in such a way that the tile
adhesive becomes mechanically anchored in the square, cut back cavities
of the Schlüter-DITRA 25 matting. Summary of Functions a) Uncoupling Schlüter-DITRA 25 uncouples the floor covering from the substrate and neutralises the tensions between the substrate and the tile covering that result from the varying deformations of the materials. Likewise, stress cracks in the substrate are bridged and are, therefore, not transferred to the surface covering. b) Waterproofing Schlüter-DITRA 25 is a waterproof polyethylene membrane with a relatively high vapour diffusion density. Provided the joints, floor to wall transitions and connections to building fixtures are properly installed, Schlüter-DITRA 25 creates a waterproofing assembly with the tile covering that meets the requirements of the mandatory guideline "Recommendations on Waterproofing in Conjunction with Panelling and Tile and Paver Coverings in Interior and Exterior Applications," published by the German Construction Industry Association (ZDB). Exclusively use system approved thin-bed mortars for areas that require CE conformity or compliance with the general certificate of national technical approval. Please contact us at the address shown in this data sheet for more details. Therefore, Schlüter-DITRA 25 protects the substrate against damage due to moisture penetration and aggressive substances. c) Equalisation of vapour pressure The interconnected air channels between the cavities on the underside of the Schlüter-DITRA 25 matting remain open. This allows moisture in the substrate to evaporate, therefore neutralising vapour pressure. d) Load distribution (load impact) The bottom of the square cavities in Schlüter-DITRA 25, which are filled with thin-bed adhesive, directly transfer the load impact on the tile covering to the substrate. As a consequence, tile coverings installed on top of Schlüter-DITRA 25 are highly load resistant. If high traffic loads are expected (e.g. in industrial locations), the tiles selected for the installation must be of the corresponding thickness and pressure stability. The requirements of the mandatory guideline "Ceramic Floor Coverings With High Impact Resistance," published by the German Construction Industry Association (ZDB) must be followed. In areas with high impact loads, the tiles must be fully embedded in
the thin-bed adhesive. The contact surface of Schlüter-DITRA 25 amounts
to approximately 50% of the total surface. This can reduce the load
bearing capacity in case of point loads. For high point loads, select a
tile thickness that is capable of distributing the loads. Ceramic tile
coverings should not be exposed to the direct impact of hard objects.
The tile dimensions should be at least 50 mm x 50 mm. e) Adhesive properties Due to the bonding of the anchoring fleece into the thin-bed adhesive on the underside and the mechanical anchoring of the adhesive in the cut back cavities, Schlüter-DITRA 25 achieves a good adhesion of the tile covering to the substrate (laboratory test values: ~ 0.2N/mm2). Consequently, Schlüter-DITRA 25 can be used for wall and floor coverings. Anchor plugs may be used with wall coverings if necessary. Dural provides a variety of matting systems for drainage, insulation and
sealing. These make it easier to install floors of all kinds, even on
difficult surfaces like old screed or wood, and they also protect the
new floor covering from moisture seeping from below as well as
preventing stretching or cracks. The advantages are obvious: greater
robustness and durability, not only in homes but also where floors have
to take plenty of punishment in commercial situations. |
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