BAL Council installed balcony tiles without any grout...? Page: 2

[craig89]

Looks like they have been fixed with expanding foam?

It is a type of expanding foam but comes in a plastic bottle. It’s applied to the back of the tile and expands as it reacts to contact with the asphalt. You’ll never get a perfect finish but it’ll normally do a good job of making a balcony non-slip.