Just wondering if anyone has any experience with Sydney companies that regrout / seal outdoor tiles to prevent water damage to patios. Our building inspection report says:
Minor surface rot has occurred to surface of floor joists supporting floor sheeting of tiled rear patio/deck. This deterioration has not caused structural damage. This is due to water seeping through grout joints of floor tiles and penetrating floor sheeting. This can only occur if surface of floor sheeting beneath floor tiles has no or defective waterproof membrane. A waterproof membrane would need to be applied to surface of floor sheeting beneath tiles if further deterioration of floor joists is to be avoided.
We can also see cracks in the grout and calcium(?) damage to the tiles.
We'd love to avoid having to rip it all up and retile (we're thinking of extending out here one day, so don't want to spend heaps on the patio now), but we don't want to waste our money on useless 'band-aid solutions' that don't fix the problem. There seems to be heaps of companies that do this sort of work ... does anyone have any suggestions or recommendations?