Eco Roof Guard (Biocide) 5L

Eco Roof Guard is a bleach-free, non-caustic benzalkonium chloride biocide for moss, mould, mildew, algae and lichen on roofs, paths, walls and other outdoor surfaces. Spray it on and leave it. It works into the growth over time with the weather, with no scrubbing or rinsing, and helps prevent regrowth.

Key features

• Bleach-free, non-caustic and biodegradable
• 50% benzalkonium chloride concentrate
• No scrubbing, rinsing or pressure washing needed
• Helps prevent regrowth for up to 12 months
• Suits tile and metal roofs, driveways, paths, decks, fences, render, brick, stone and concrete

How to use

• Mix rate: 1:20 to 1:25 with water, sprayed to saturation and left to dry
• A 20L drum covers about 300 m² of roof
• Apply in dry, overcast conditions with no rain due for 12 hours
• For lichen, apply a second coat 15–20 minutes after the first

Safety and care

• Disconnect rainwater tanks before application and keep out of waterways
• Keep pets and children off treated areas until dry (1–2 hours)

Also available in 20L.