The point is, hot-dipped galvanized nails will do the job for 99% of the houses out there. I'd only specify stainless roofing nails if I lived at or close to the ocean. Hot-dipped galvanized nails can last well over 100 years in non-oceanic climates.he point is, hot-dipped galvanized nails will do the job for 99% of the houses out there. I'd only specify stainless roofing nails if I lived at or close to the ocean. Hot-dipped galvanized nails can last well over 100 years in non-oceanic climates.
Costs more to build out. As you said, there are all kinds of other factors, but the same square footage in two stories will cost less to build than in one. Most homes with traditional foundations can sustain a second floor addition without additional support.
For example, if the home is selling for $230,000 and the land costs $30,000, then the construction cost is around $200,000. If the home is 2,000 square feet, then the cost per square foot is $100. Use several new homes in your area to get an approximate square footage price. Also, it's most economical to build a home which is no deeper than 32 feet. 2  If the depth exceeds 32 feet, then your roof trusses may need to be specially designed and will be more expensive. 3  Architecture of Home. 4  Homes that have a rectangular or box shape cost less to build.