Elevated floor on piers over dune – Zone 5A
jhrockwell
| Posted in Green Building Techniques on
Hi All:
Any thoughts on an elevated first floor assembly which:
– minimizes height from grade (sand) to first floor finish floor;
– maintains 24″ clear between grade an underside of floor;
– minimizes thermal bridges at pier connections;
– resists salt air, pests, etc;
– uses minimal foam;
– must allow free movement of air and flood waters beneath.
Thanks!
John Rockwell
Rockport, MA
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Replies
I do not think a pier foundation should be your first choice for minimizing height from grade, thermal bridging, or pests. A concrete ringwall can do these thing better. Also, rigid foam insulation is recommended for the undersides of floors on pier foundations if spray foam is not used. Building Science Corp. has covered this quite well.
It will be an excellent choice for allowing air and water flow underneath.
House on the beach?