Generally speaking roof replacement is only necessary for two reasons:
If issues are spread across the entire roof area and they equate to approximately 25% of the roof area, likely a replacement is necessary.
A roof replacement can be considered a costly inconvenience and should be your last resort!
WHY DO YOU NEED SNOW REMOVAL ON YOUR FLAT ROOF?
• Avoid excessive weight on building structure
• Avoid damage to building structure
• Avoid irregular ponding leading to increased leaks
• Avoid clogging draining locations
• Maintain safe work areas on rooftop and pedestrian walkways