What grout would you recommend for patching grouting gaps in an outdoor tiled balcony terrace?
I have quite old 15cm x 15cm beige clay type tiles with tough grout outside on a terrace over a bedroom extension and they are leaking a bit through. There are gaps and moss in some of the grout lines. There is also efflorescence coming from some of the grout lines. One line of tiles in particular seems to have lifted very slightly making the grout crack.
If I scrape all the moss and salt etc out and try to rake out loose grout…
What grout product should I buy to patch the grout up with to make the area waterproof again please?
I have quite old 15cm x 15cm beige clay type tiles with tough grout outside on a terrace over a bedroom extension and they are leaking a bit through. There are gaps and moss in some of the grout lines. There is also efflorescence coming from some of the grout lines. One line of tiles in particular seems to have lifted very slightly making the grout crack.
If I scrape all the moss and salt etc out and try to rake out loose grout…
What grout product should I buy to patch the grout up with to make the area waterproof again please?