How to tell if your roof is going to collapse?

Determining whether a residential roof is at risk of a catastrophic structural collapse due to severe water damage, rot, or heavy snow loads involves looking for critical warning signs of framing failure. Common red flags include severe sagging or bowing visible along the ceiling line or roof ridge from the interior or exterior; loud popping, cracking, or creaking noises coming from the attic framing; drywall buckling, deep cracks, or water pouring in massive sheets through ceilings; and doors or windows on upper floors suddenly jamming or refusing to open because structural wall loads have shifted. You can troubleshoot structural safety safely by evacuating the building immediately if severe sagging is observed. You can verify that your corrective action is successful when hiring a structural engineer and a licensed roofing contractor to replace rotted trusses and reinforce load-bearing rafters restores structural safety and prevents collapse.