The heavy snowfall this season, combined with this week’s snow, may have added weight to many roofs in Quebec. To avoid accidents with unfortunate and even tragic consequences, Quebec’s building regulator (RBQ) has some advice. Unusual cracking noises, warped ceilings, cracks appearing on certain walls, interior doors that jam or rub: if these signs appear, there’s a good chance that the residence’s roof is overloaded due to the weight of snow. Source