BHUTAN TUFF 32MM BWP F/DOOR 90X27 SQFT 32MM are known to be dust, sound and heat insulators. It is made out of four press technology and self - balancing technology, ensuring that it is sturdy and reliable. It is chemically treated making it both borer and termite free. It also has a warranty of 25 years for borers and termites only. Purchase the best surface and construction products on Hippo Stores online and at our stores at excellent prices!