PIR foam has exceptionally good insulating and damp-proofing characteristics. The polyurethane is applied seamlessly against the underside of the floor of the ground floor, around floor boards and up to a certain height on the foundation joints. The result is a perfect separation between the climate in the crawlspace and that in the living room.
Healthy homes, offices etc with an acceptable humidity level in the house. PIR foam seamlessly seals the floor, in contrast to systems that seal off the ground.