Residential Spray Foam Insulation – Kearney, Nebraska 1- Interior Foam shop display project demonstrates residential use of spray foam insulation. Kearney, Nebraska. 2- The window is covered to protect the glass from foam over spray. 3- Applying the spray foam insulation around the edges of the studs fills in gaps between the stud and the plywood. 4- Spraying an even coating of foam insulation ensures a tight building envelope. 5- Interior foam insulation is sprayed evenly between the studs so sheetrock can be easily applied over the top.