Step 1 the first step is to the basement first.
Raising sagging roof.
When the roof framing is assembled two ceiling rafters are often joined together to create a longer span.
Sagging roof lines can originate with the horizontal ceiling rafters.
If the line does not continually follow the bottom of the.
Excess weight from snow and design flaws.
Every roof is designed to support a specific maximum weight and anything above this especially for long periods can cause the roof to sag.