Quebec only offers a few months of good weather per year, and many homeowners wonder if it's possible to clean their roof outside of the summer season. The answer is nuanced.
The minimum required conditions
Sodium hypochlorite (SH) is effective from about 5°C (41°F). Below this temperature, the product loses effectiveness and rinsing risks forming ice on surfaces. We therefore don't work during active freezing periods.
The ideal window in Quebec
The optimal season for roof cleaning in Quebec is: April to June (spring), and September to November (fall). Summer can be too hot on certain days — SH dries too quickly in high heat and the result is less uniform.
Benefits of spring cleaning
Spring is often the best time: temperatures are mild, humidity is higher (ideal for SH contact time), and you eliminate everything that accumulated during winter before the rainy season.
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