Also adding ridge venting to help.

If you want more I can keep going...Best of luck with it.Blue Ridge Mobile HomesP.S.

Hope that helps.Blue Ridge Mobile Homes

Blue Ridge Mobile Homes

First house I really worked, foundation to ridge cap was a new construction rental.

Is the deflection (sag) in the ridge, in the rafters, or both?

she also forgets, Ruby Ridge, Waco.........

Hey BiggerPockets Chattanooga,I'm a buy-and-hold investor, and I just picked up my first property in the East Ridge area of Chattanooga. 

@Steve VaughanOK, that's interesting, I managed to delete half my answer above.What I meant to say is that this would be such a useful trick to a DIYer because it means, on something like a simple gable roof like the one pictured, you could reshingle half the main roof in early September, tarp the ridge, wait out the winter, and then reshingle the other half in April.

I live in Park Ridge, just outside the city.