How To Use Silicone Grout

A quick visit into the reason for using and process of applying silicone grout on a tile floor in a greenhouse.
I laid tile directly onto an OSB substrate without doing my homework. I should have used uncoupling membrane to isolate the substrate (OSB) from the tile allowing independent movement between the two surfaces. I decided using silicone grout could help mitigate any problems I might have with this oversight. Silicone grout is very flexible (as well as watertight and airtight) and would help with any movement that might cause regular grout to crack as weight os applied.
Watch to see the processes I used to apply the silicone grout. It's not the easiest task but worth the effort when the situation calls for it.
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