Milligan's Gander Hill Farm “We had open cell spray foam sprayed directly to the metal siding and metal roof which makes for a very efficient building. The foam also cuts the noise from rain to levels of a shingle roof” Blake said.
How to Build a Pole Barn. The pole barn is the most simple of all shed designs. It is essentially where posts or poles are fixed into the ground, secured together at the top, which then support a roof. They are typically used on farms, but.