Typically the joints in the tile installed over an anti-fracture membrane must be placed near the joints in the concrete but not necessarily directly in line with the control joints. Inspect cured film to make sure there are no voids, bubbles or breaks in the membrane. . It would not be advantageous to add a compressible membrane in a tile installation. While mortar or sand beds provided the requisite separation, there are inherent problems.
While not really a measure of substrate movement, it does provide information about the affect of compressibility of a component in the system. Whether your job is residential or commercial, large or small, use NobleSeal to avoid costly failures. A crack isolation membrane is a thin membrane that isolates ceramic tiles, porcelain, stone coverings from minor in-plane substrate cracking and provides floor covering waterproofing. Can roofing felt or scribing felt be used as an anti-fracture membrane? Surface protrusions and tile glazes will be removed by sanding, scraping or scarifying. Cautions Read complete cautionary information printed on product container prior to use.
Apply first coat, measuring membrane periodically with a wet film thickness gage to ensure a minimum thickness of 25 mils wet. Plug all drains and dam the floor area to be tested. Fiber Fusion Anti-Fracture Crack Isolation Membrane Fiber Fusion provides a fast, durable and cost effective solution for tile installation. Measure membrane periodically with a wet film thickness gage to ensure a minimum thickness of 50 mils wet, curing to a dry film thickness of 30 mils. After installing the membrane over the entire surface ensuring a continuous 50 mil wet film thickness and required cure time, place bond breaker tape over the joint and install tile without bridging the joint. The unique structural surface 'Stress Flex Mesh' locks into the tile setting adhesive isolating both substrate movement and thermal tile expansion providing world-leading technology in waterproofing and crack isolation performance.
These membranes are either trowel applied or sheet applied. Clearly, this is an industry-approved, nearly foolproof, and very safe way of making sure that movement in the control joints does not cause a reflective crack. What are the uses of crack isolation membranes? Manufacturers state claims regarding performance, and there are test data that can be considered when comparing products. Material that is cured is difficult or impossible to remove. It also allows tile to bridge control joints in concrete substrates. When properly installed, this mesh reinforces the stucco and helps to reduce the appearance of cracks. However, thin-bed methods did not separate the sub floor from tile, and direct bonding allows for the transfer of forces from subfloor to the tile.
Install a continuous membrane to cover the substrate and up to the drain opening, making sure to embed the waterproofing mesh around the drain opening, as shown in the diagram. In the mortar bed installation, the mortar bed is not bonded to the concrete - rather it is isolated from cracks in the concrete by the cleavage membrane. This Product Data Sheet has been prepared in good faith on the basis of information available at the time of publication. One roll of the membrane is 60 square feet. Install compressible backer rod open or closed cell backer rod into the joint.
Performance varies also - it is important to check with the crack isolation membrane manufacturer regarding their installation instructions and intended use. Thicker films, cooler temperatures, higher humidity or green concrete not fully cured will extend cure times. Fiber Fusion works by absorbing subfloor movements and reinforcing the mortar; similar to rebar in concrete. This method may be suitable as long as the concrete does not crack in other areas. It must be able to accommodate movement whilst maintaining watertight protection without causing damage to the hard flooring surface. The floor is protected and tile can then be installed with a latex modified thin-set mortar.
Install the membrane over the entire surface ensuring a continuous 50 mil wet film thickness. The Crack Isolation System can either embed the mesh directly into the wet brown coat or embed mesh into an acrylic modified base coat over the existing plaster base coat or finish. Storage Store in cool, dry location. Crack Isolation System is designed to mitigate surface cracking in new and existing plaster systems by integrating woven fiberglass mesh into the base coat prior to applying the finish. Curing Cure for 1-3 hours. Vinyl Installation Products With a combination of affordability and durability, vinyl flooring is a great choice for kitchens, bathrooms, and other high traffic areas. Forms a smooth, monolithic, watertight surface over walls, floors and ceilings.
With reduced installation times, these crack isolation, waterproofing and acoustic membrane systems not only save time but also cut labour costs, expedite project completion and produce a perfect result for every project. If ceramic tiles, porcelain, or stone coverings are installed on cement subfloors, it is highly recommended to install a crack isolation membrane to waterproof the floor coverings and protect them from the movement of the cement floor. Mortar beds or sand layers separated tile from the substrate below and allowed for differences in movement in the substrate and the tile. For example, they are relatively heavy, they add height and are time consuming to install. Do not store open containers, nor leave containers exposed to sunlight. Can you tile over control joints using an anti-fracture membrane? For high moisture vapor emission concrete applications, the maximum acceptable moisture vapor emission rate is 12 pounds per 1000 square feet 5.