Moss and Lichen Treatment in Porirua

Sheltered south-facing Porirua slopes and bush-backed sections in Papakowhai and Camborne grow lichen; exposed coastal roofs collect salt instead. We treat and wash to suit what is actually on the roof.

Moss and Lichen Treatment on Porirua roofs

Salt that settles on sheltered parts of coastal Porirua roofs is what starts rust. BRANZ recommends washing painted metal roofs every 6 months in severe marine areas, which covers much of the Porirua coastline.

Moss and lichen hold moisture against the roof surface. On metal roofs that damages the coating; on tile roofs it lifts edges and blocks valleys and spouting.

The housing ranges from older long-run and tile roofs in the established suburbs to newer homes in Whitby and Aotea, so the right answer for a roof here depends very much on the street.

BRANZ says regular washing is part of maintaining the durability of a painted metal roof. (BRANZ, Replacing a profiled metal roof)

What to look for

• Shaded slopes under trees
• South-facing roofs that stay damp
• Valleys and laps that hold debris

Every job follows the same steps: we look at the roof, photograph what we find, send a written quote, then send photos of the finished work. More about moss and Lichen Treatment.

Where we work in Porirua

Titahi Bay, Plimmerton, Pukerua Bay, Paremata, Mana, Camborne, Whitby, Papakowhai, Aotea, Ascot Park, Cannons Creek and Waitangirua. See everything we do in Porirua.