Interior Spray Foam Insulation – Axtell, NE This is before the spray foam insulation is sprayed at this project. This customer would like to be able to heat this building and keep costs low. All surfaces will be covered before spraying to prevent overspray and damage to surrounding areas. Light fixtures and electrical outlets will be covered as well. Two inches of foam was sprayed to the walls and ceiling to give an R-Value of around 13.4 to this entire structure. After the finish white coat is applied, this quonset will be ready to keep it’s owners warm all winter long.