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.

Is rubber roofing better than felt?

Flat Roofing Materials: Should You Use Felt or Rubber? - eDecks Blog

Watertite roofing contractor | CMS For You
Rubber roofing is extremely fire resistant and because you install the roof without a torch (instead using a rubber roofing adhesive) installation is very low risk compared to torching on felt.Mar 18, 2019