Can roofing felt or scribing felt be used as an anti-fracture membrane? In the thinset installation, a crack isolation membrane is bonded to the concrete. I used Home Depot Brand thinset to help plumb the existing walls for a better tile install. These have been tested and have the highest performance. After the tile has been installed, caulk the joint with specified sealant. The standard measures a variety of performance areas such as shear bond, resistance to micro organisms important to avoid mold growth and, perhaps the most important element, performance. The exact placement of expansion joints is a function of many items including exposure to sunlight and the range of high to low temperature, moisture, aging of the concrete where relevant , structural movement, expected loading, and other design criteria.
The most important key next is to have dust vacuumed off the slab so it's clean. In essence, the substrate must be strong enough to support the total weight of the installation and its service needs. Product did not adhere to the cured thinset above shower stall. So what can you do to keep the tile from cracking? Otherwise, I recommend you use products made from sand and cement. The tile job has stood the test of time so far and I am pleased with the product.
Also, the warmer the outside temp the better for application purposes. This type of cracking can be easily avoided in the tile layer - either by installing the tile on a mortar bed set over a cleavage membrane method F111 for example , or by installing the tile over a crack isolation membrane using a thinset method. The membrane appearance is pink when wet and dries to a dark red color. The fabric provides a bondable surface so that the membrane can be bonded to a substrate and tile can be bonded to the other side. 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. The internal make-up of this membrane is such that movement in the concrete is not directly transferred to the tile. Turns dark red when dry in 1 - 2 hrs.
Again using the flat side of the trowel, flatten the ridges to form a smooth, continuous membrane. All locations are dry areas unless you concider a kitchen floor wet so the membrane will go down first. Easy to apply but messy. It has a record of success protecting tile for 25 years with millions of square feet installed. It was fast and easy to complete the job, no issues whatsoever, placed my tiles over it with adhesive and that was it. In a clean pail, mix at low speed to obtain a lump-free solution.
If the slab does curl at the control joint which is not uncommon , any curling that occurs after tiling may damage the tile. The bed was installed over concrete with a cleavage membrane separating the mortar bed from the concrete. Two coats provides an impervious layer and confidence that water will not penetrate. Each coat went on great and it did not peel a bit. NobleSeal is easy to install, especially when it is bonded with a NobleBond adhesive. The thin-bed method is a cementitious adhesive that allows tile to be bonded directly to a substrate. The urethane adhesive was a crack isolation membrane all by itself- whether you installed anything over it, or not.
Shelf Life Maximum 1 year from date of manufacture in properly stored, unopened package. NobleSeal is not the only crack isolation membrane. 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. Although the membrane is bonded to the concrete and the tile to it, the membrane stretches where needed to prevent or reduce force transference. Lightly dampen all porous surfaces. It provides more assurance that future cracks in the concrete will not affect tile performance.
So, when a concrete floor cracks, that force is telegraphed directly to tile causing it to crack. After the second coat is applied and both coats are fully cured, the application area can be flood tested. Performance varies also - it is important to check with the crack isolation membrane manufacturer regarding their installation instructions and intended use. For high moisture vapor emission concrete applications, the maximum acceptable moisture vapor emission rate is 12 pounds per 1000 square feet 5. What is an anti-fracture membrane? Then apply an additional coat of the membrane and smooth.
If using a roller, apply a continuous, even film with overlapping strokes. For waterproofing installations, membrane must be applied in two coats. Would definitely use again and would recommend this product to anyone wanting to waterproof their shower floors and walls. In many cases, multiple components or steps are part of the system. It also allows tile to bridge control joints in concrete substrates. Its Single Component formula is ready to use color consistent and easy to spread and clean.