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.
The fact that just one problem in the construction program can create a negative cost domino effect throughout construction is well known to every home builder. That is why most contract builders will build in a margin to the cost of building your home anywhere from 18% to 35%.But most home builders rarely make a profit in excess of 12%. In other words they chew up their margin because of poor planning, execution and inaccurate costings.Before I spend $10,000+ on full plans, surveys, engineers, planning and approvals etc. how do I know how much it is going to cost to build this house?â. Answer: You donât, you only have a range within which to work. For example $1200 per square metre.