Open cell foam insulation is a huge upgrade from traditional insulation. While still not as superior as closed cell foam its only a fracture of the cost. Open cell spray foam can be applied in a wall or roof cavity filling it in one pass. The cell structure isnt as dense as close cell making it 150 times it’s applied state as it expands. Open cell still has a higher r value that standard insulation. It seals and fills any voids and cracks in the building envelop to make a great air and thermal barrier. Open cell spray foam insulation is also a great sound barrier. Works amazing when using for room or home theater sound dampening and soundproofing. Our open cell foam is also an ignition barrier class 1 fire rated foam.