Winters get freezing and snowy in Ottawa, with the average temperature getting down to -25°C. Snow and ice can quickly accumulate on your roof, causing dangerous and potentially deadly situations. You should not attempt to climb up on your roof yourself during hazardous weather. Hiring a roofer in Ottawa to get rid of roof ice build-up is essential. It can be difficult to know when is the right time to give the best roofer in Ottawa a call. This guide will discuss when to call a roofer for snow build-up so you can keep yourself and those around your property safe.