Common Grout and Silicone Problems

Issue:
Heavy surface buildup is common in the Bay of Plenty region due to high mineral content.

Issue:
Moisture trapped behind tiles due to compromised silicone and permeable cementitious grout is common in exposed or high-humidity zones.

Issue:
Black mould on external silicone indicates failed waterproofing resistance, usually due to aging and poor ventilation.

Issue:
White calcium stains from evaporated water are common on outdoor tiled decks, especially beneath planters in high-sun areas.

Issue:
Visible drainage from behind the wall lining due to failed grout and mould-contaminated silicone. Common in high-use showers with poor ventilation or aging seals.

Issue:
Residual spacers under grout reduce bonding depth, leading to premature grout cracking and flaking, especially in wet areas.