What is the cheapest style roof to build?

4 tips for building a cheaper roof - Log Home Builders Association

Roofing |
Put a gable roof on your log home. A gable roof is generally the least expensive and easiest style of roof to build. It is also the least prone to leaks since it only has one single ridge cap, rather than a bunch of hips and valleys.Mar 23, 2008

Why do carpenters prefer screws to nails?

Why do carpenters prefer screws over nails? - Quora

Palau Roofing Contractors | Palau Roofers | Commercial Repair and ...
Carpenters prefer screws over nails for the simple reason that the threads on screws prevent the screw from being dislodged. This provides a stronger joint. ... If it is not, for example in paneling and framing, nails are used as it can be done faster, especially with a nail gun.