Gloeocapsa magma is ubiquitous on roofs in L'Assomption. Transported by wind and birds, it colonizes shingles and protects itself in a dark gelatinous sheath — hence the characteristic black streaks. It feeds on calcium carbonate granules embedded in your shingles. Sodium hypochlorite (SH) is the only recognized product to penetrate this sheath and destroy the organism.
Why choose Toit Propre in L'Assomption?
Pricing in L'Assomption
Minimum $399 before taxes (GST 5% + QST 9.975%). Adjustments for moss, lichens or difficult access. Deposit by Interac: paiements@aqua-net.ca
Frequently asked questions about Roof Algae and Black Streak Removal in L'Assomption
Black streaks on roofs in L'Assomption are caused by Gloeocapsa magma, a cyanobacteria that feeds on your shingle granules. It spreads by wind and birds and is very common in the L'Assomption area.
Only sodium hypochlorite (SH) + surfactant effectively eliminates Gloeocapsa magma in L'Assomption. High pressure and water washing only disperse the colonies — they come back in 6 months.
Algae and black streak treatment is included in our standard cleaning. Prices from $399 in L'Assomption. Adjustment possible depending on streak severity.