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.
And the challenge there is that you donât really know whatâs inside that wall. With remodeling you can always count on surprises and all surprises cost extra money. While whole house remodeling is almost always more expensive than new construction, the cost of a home is only part of the equation.nd the challenge there is that you donât really know whatâs inside that wall. With remodeling you can always count on surprises and all surprises cost extra money. While whole house remodeling is almost always more expensive than new construction, the cost of a home is only part of the equation.