DBV Product Technical Guide Fall 2021 | Page 10

DBV Rainscreen Facade Product Technical Guide
INSULATION
A layer of thermal insulation is put between the supporting surface and the ventilation cavity . Depending on the type of insulating material used , it may also fulfil fire protection and soundproofing requirements .
Thermal insulation for rainscreen / ventilated facades must consist of an insulating material of a type suitable for exterior wall insulation behind cladding .
The insulation must meet the following requirements :
• Able to retain its shape
• Able to retain its dimensions
• Completely hydrophobized and non-vapor retardent ( as necessary )
• Non-flammable ( as necessary )
The following types of facade insulation can be used , for example :
• Mineral wool
• Soft board ( e . g . EPS )
• Hard board ( e . g . XPS , PUR , PIR )
9 www . hilti . com