Shingles have 

Least of all me, there is absolutely nothing a CG will advise me on from the size of a ring nail on shingles to the vapor liner below grade of the foundation, nothing, if I need an advisor I'll ask an engineer.And, contractors will do well to hook up with good investors.

We will use some off white/muted grey wall colors, grey tile, white cabinets, and light grey granite countertops in the kitchen and baths.On the exterior, we are planning to replace the roofs on all buildings with 40 year architectural shingles and paint the exterior a complimentary color which will be create a sense of place and setting in the woods surrounding the home.The most challenging part of this flip will be removing the trees around the house. 

Some contractors are hesitant at first but when they realize we always have the materials on site when they need them then they relax and actually like working with us.I don't provide shingles to roofers, gutters obviously, and other similar items.

The price of building a pitch roof and than shingling it will cost a lot more than flat roof.

Get the first folks that estimate a roof for you to demonstrate how to gauge the life left in a composite shingle.

In Ohio at least our licensee exams are all computerized, so if you have test anxiety, it helps you practice being in that state-of-mind and relieves you of some of that undue stress.

Unfortunately my wife first came down with pesticide poisoning, then the shingles this past Xmas.

Typical bid item would be:Roofing:  Certainteed 30 year architectural shingles, Hollow Green, over new 30# felt, with drip edge, starter course and ridge vent to match.  

We're going to look into laying new roof over existing roof, theyre is only one layer of shingles.