First of all when it comes to tearing off your roof and replacing it completely the longer it takes you to do so the more your home is at risk of being damaged by inclement weather.
Replacing your roof yourself.
All roofs will eventually become worn and weathered and will need to be repaired in part or replaced completely.
After all it keeps water out of the building.
If a tiling pro is coming to redo your floors perhaps you d want to rip up the old floor before he arrived.
Even with a team of 3 4 people you re looking at a minimum of 2 3 full days of work for a full replacement.
The roof is arguably the most important component of your house.
You may be a firm believer in doing some of the work yourself.
If not replace bad wood with new plywood sheathing or 1 x 6 sheathing boards whichever is applicable to your type of roof.
And while nobody likes having to pay to replace a roof the critical and aesthetic function it serves should help ease the pain of spending 8 000 to 20 000 on the work.
Roofing materials are designed to last an average of 40 years.