This room over the garage is being renovated. The homeowner wanted to be sure his home is properly insulated. One of the treatments our team did in this room was to insulate the kneewall. A kneewall is the triangular space under the sloped roof and behind the wall of the room. We installed our Foamax polyisocyanurate foam board on the exterior walls. Foamax provides superior insulation and it is flame retardant. The homeowner can rest assured the knee walls in this room are properly insulated.