The minimum movement joint width is the same as the grout joint and not less than.
Exterior tile wall detail.
For exterior applications the requirements are the same for walls and floors.
These substrates must be structurally sound meet deflection requirements and meet on plane requirements.
Larger joints provide better protection to large format tile with any side longer than 15.
With less than 5 absorption most porcelain tiles are suitable for exterior walls however always confirm with your supplier.
Measure the length and width of the wall space and multiply to get the square.
Generally ceramic porcelain or stone tile can be installed in exterior locations over suitable substrates such as masonry concrete mortar beds and in some cases certain types of backer board units.
Step by step guide steps 1inspect the exterior substrate.
Install flexible movement joints every 8 12 feet and at all changes of plane.
7prepare the installation for grouting.
2prepare the exterior substrate to receive tile.
3apply a waterproofing membrane.
4plan the exterior floor layout and make tile cuts.
Select a ceramic tile that is suitable for an exterior installation.
With ceramic tile the most common recommendation is porcelain tile due to its low absorption wide variety of colors and finishes.
8mix and apply.
It includes substrate preparation such as addressing concerns like laitance substrate variation excessive porosity and waterproofing as well as product selection and installation tips to make sure exterior installations withstand the elements.
Scrape off any bumps or other imperfections from the wall.
Clean the wall with a stiff brush and water and clean any.
5mix and apply the tile mortar.