LFT_FAQ_6_13.indd Unfortunately, some profiled roof tiles require a very thick bedding of mortar, so to reduce the risk of cracking, sharp sand should be introduced to the mix for most tiles. Traditional versions are cement-based powders that are mixed with water prior to application. 1 âLHT mortars allow the mortar to be spread with a thicker configuration than conventional thin set mortars as seen in the attached photo. This type of cement is designed to adhere well in a thin layer - typically not greater than 3/16th thick. Thinset mortar is a blend of cement, very finely graded sand, and a water retention compound that allows the cement to properly hydrate. Large 12×24 tile should be offset or staggered by thirds; Choose a trowel based on the tileâs size, shape, and thickness; Thin-set mortar should cover 95-100% of the back of tile in wet areas; Back butter or back trowel tiles to ensure full coverage; Directionally trowel mortar on walls and tiles to eliminate air voids 2013-06-28T10:40:24-07:00 If the mortar starts to harden while you work-either on the surface or in the bucket-discard it and mix a new batch. xmp.did:F77F117407206811AB08C344DA1CB6C2 With traditionally sized tile installations, thinset is used to bond the tile to the substrate. The terms thinset cement, thinset mortar, dryset mortar, and drybond mortar are synonymous. Answer: TCNA, with the support of the tile installers, has developed specific recommendations for the installation of large format ceramic and natural stone tile. The medium bed holds its consistency better than the thin set, which will sag a bit in the middle of the tile. As they do, they proportionately have more inherent warpage (where the center of the tile is higher than the edges or ends). With handmade tile we always recommend larger grout joints to account for these irregularities (the tile can fluctuate by ~1/8" in size and thickness, in any direction). As a general rule the finish thickness of thinset mortar with ceramic tile installations is around one eighth inch once the mud has been compressed under a tile. Actual coverages may vary according to substrate conditions and thickness of applications. Learn how to select the best mortar for tile setting based on the needs of your project. ... Actual jobsite coverage may vary according to tile size and thickness, exact joint width, job conditions and grouting methods. For most tile installations, a square-notched trowel with 1/4 inch notches produces grooves of the right thickness. Gray Fortified Medium Bed Mortar VersaBond-LFT Fortified Medium Bed Mortar VersaBond-LFT Fortified Medium Bed Mortar is a general purpose, economical, polymer-modified medium bed mortar for use with large format porcelain, ceramic and natural stone tile. Unmodified mortars for tile Mortar for tile with any side > than 15" GOODUncoupling Membrane Mortar(576086 gray) â â â â â Mortar for tile with all sides 12" or less GOODFloor Tile Mortar(12639 â¦ For thicker applications, use a medium bed mortar; periodically pull up a tile and check the back to ensure proper adhesive coverage. Before starting, Remove Ceramic Tiles (if present) and ensure your floor is flat and strong enough to meet industry standards (two layers of plywood totalling 1-1/4-inch thickness). False Any sand you get likely includes tiny stones that â¦ Applying the mortar to the back of the tile eliminates this crucial component of first quality tile installations. Tile sizes are definitely trending larger and also longer. Mortar can be applied up to 1/4" (6 mm) thick after beat in. PDF/X-4 You will specifically need a medium bed mortar for 12x24 tiles. Dale Yalanovsky has been writing professionally since 1978. The terms thinset cement, thinset mortar, dryset mortar, and drybond mortar are synonymous. That might be a little bit heavy on the thinset for 12x24âs tho. Then it is leveled with a comb with denticles of 6 mm. Thinset is your go-to tile mortar for most indoor and outdoor applications. When it comes to thickness, our ceramic tiles are ~5/16" thick; our brick is ~1/2" thick, and our glass tile is ~1/4" thick. 2013-06-28T10:40:21-07:00 With handmade tile we always recommend larger grout joints to account for these irregularities (the tile can fluctuate by ~1/8" in size and thickness, in any direction). Medium bed mortar is made up of water, cement, coarse sand and other compounds, so you won't end up with loose tiles when everything dries up. %PDF-1.6 %���� This type of cement is designed to adhere well in a thin layer â typically not greater than 3/16th thick. This flexing will cause the ceramic tiles to crack, especially the larger 12-by-24 types described here. MAPEI recommends adding 5% to 10% in overage to ensure that your entire project is covered. Wait between 16 and 24 hours before you walk on flooring after the thinset has been applied. Adobe PDF Library 10.0.1 Mastic never completely hardens, which means it will flex slightly each time a tile is walked on. This means choosing the right type and size depending on the size and â¦ Oct 25, 2009 â¦ What size trowel should I use? Voids beneath an 18-inch tile could cause the tile to crack over time. Thinset is a mortar that is made of Portland cement, silica sand, and moisture-retaining agents. 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