Kahrs Installation Items, Combo Underlayment 118672 Easy application and cleanup —

Easy application and cleanup — apply with brush or roller

Best warranty — 30-day no-questions-asked

Use it over regular sheet rock

WARNING: Spontaneous combustion danger

Enhances adhesion — use on any wood to improve bonding

Kahrs Installation Items, Combo Underlayment 118672 Easy application and cleanup —Great 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