Don-I have looked into the spray foam around these parts and the installers are less than relyable-so I'm doing the foam board.....spray foam is around $1.00 per board foot with you doing the clean up-whereas the foam board is 28 cents per sq ft not including labor which ammounts to about another 25 cents a sq ft.....the interior liner on my trailer is 3/8 inch Dougles Fir...I will have a 2 inch layer except for the 1"X2"square tube studs with the 3/8" plywood and the .063 Alum exterior....geof
|