Kahrs Installation Items, Combo Underlayment 3538 Kahrs only warrants these tongue

Kahrs only warrants these tongue and groove floating floors if this type of glue is used

100% wool carpet in a short tight linear texture

provides a patented system of moisture protection reducing mold and mildew

indoors or outdoors

It contains no biocides or fungicides

Kahrs Installation Items, Combo Underlayment 3538 Kahrs only warrants these tongueGreat all in one underlayment for moisture protection and sound reduction Khrs Combo Underlayment is a two ply polyethylene film with flexible polystyrene granules sandwiched between to provide a dual moisture barrier with a thickness of 3 mm. It has a compression recovery of 80% (ASTM D1055) without loss of resilience. It also has a good sound rating (ASTM E 90 and E 492, STC = 59, IIC = 59) which means it provides very good sound deadening