Insulating your home with spray foam insulation can create a more comfortable environment and save big on energy bills, but how much does it cost?

Foam guns contain more parts than cannons, such as a spray nozzle with trigger and control knob near it that can adjust bead size (1/8 to 3 inches). Furthermore, two-finger triggers make operation ...

In this case, [Eric] is using it to build up the surface of the foam and seal up all the open pores. The downside is that the gesso requires several coats to really build up. [Eric] puts six coats ...