This agrément certificate product sheet 1 relates to celotex pir plasterboard thermal laminates comprising rigid polyisocyanurate pir foam boards bonded to plasterboard for use as insulating dry lining for internal wall applications in existing domestic and non domestic buildings.
Rigid foam on attic walls behind celotex.
However each material has its own specialty.
For new construction use rigid boards to insulate slabs and the outside of foundation walls.
Celotex fiberboard is one of the most popular materials for insulation in the class of fiberboard.
Use a premade kit for this type of project.
Celotex dow polyisocyanurate insulating foam board foam board properties history asbestos facings.
For a basement remodeling project consider insulating basement walls with foam board.
Celotex foam board insulation was later purchased by dow chemical who continues to market polyisocyanurate foam insulating board.
Basically both materials are used for residential.
For example rigid foam is mostly used for basement wall insulation due to its ability to resist moisture.
This article gives the history and properties of celotex thermax and other foam board insulating products.
This video shows an example of a home that has rigid foam installed on it but not quite the way we would recommend.
If you are wanting to create a thermal br.