ᐅ Panel supplier vs. flooring installer – who is right?

Created on: 3 Mar 2010 00:20
M
MODERATOR
M
MODERATOR
3 Mar 2010 00:20
Hello,
Joint widths generally result from the difference between the nominal size and the actual size of the tiles, or they are recommended based on installation standards. The following is considered a recommendation:

Edge lengths up to 100 mm (4 inches): about 2 mm (0.08 inches)
100 - 200 mm (4 – 8 inches): about 3 mm (0.12 inches)
200 - 600 mm (8 – 24 inches): about 4 mm (0.16 inches)

Before any disagreement arises between laypersons and professionals, have the stakeholders explain their positions with reference to SIA Standard 248 ("General Conditions for Tile Work – Coverings and Claddings with Ceramic, Glass and Asphalt") or one of the information sheets from the Swiss Tile Association "SPV".
If, for example, the architect claims that everything is not a big issue, they should be able to substantiate this: "What about the allowable tolerances?"
Likewise, the tile supplier should professionally support their view that the delivered tiles can be laid with a 2 mm (0.08 inch) joint: "Which standard or recommendation does the supplier refer to?"

Of particular interest in SIA 248 are Chapter 5 Execution, sections 5.2 Installation and 5.3 Tolerances of Tile Work.