Application ⁄ Roof ⁄ Roof renovation system from outside

Roof renovation system from outside

Usually, with renovation of a roof from the outside, the existing insulation must be removed and then an airtight layer must be looped over and between the rafters - a complicated process. With LDB 0.02, PAVATEX is the first manufacturer to offer an airtight membrane above the rafters that ensures a secure, airtight closure at the roof. The combination of PAVAFLEX between the rafters and PAVATHERM-PLUS as a sarking is an extremely efficient and cost-effective system.

Roof renovation system from outside

  • The existing, old insulation material can usually remain in the structure after inspection – removal and disposal costs are eliminated. 
  • A cost-effective and efficient system, thanks to easy, level placement above the rafters. 
  • PAVATEX LDB 0.02 ensures immediate drainage and may be exposed to the weather for up to 7 days when mechanically fixed.
  • The entire system with sarking board can be exposed to the weather for up to 3 months. 
  • A perfectly coordinated renovation system: All system components come from a single source for greater certainty. 

With PAVATHERM-PLUS

With the combination of PAVAFLEX, PAVATEX LDB 0.02 and PAVATHERM-PLUS you get a vapour permeable roof section, which regulates the entire moisture balance in the construction.

PAVATHERM PLUSPAVATEX LDB 0.02PAVAFLEX
PAVATHERM PLUS
PAVATHERM PLUSPAVATEX LDB 0.02PAVAFLEX
PAVATEX LDB 0.02
PAVATHERM PLUSPAVATEX LDB 0.02PAVAFLEX
PAVAFLEX

For connections and sealing:

PAVACOLL, PAVAPRIM, PAVABASE, PAVATAPE 75/150, PAVATAPE 20, PAVATAPE FLEX, PAVAFIX 60

Processing

PAVAFLEX insulation between the rafters

PAVAFLEX insulation between the rafters

The functional efficiency of the existing insulation material must be checked. If it remains in the structure, PAVAFLEX is added, without voids, up to the top edge of the rafters and ventilation openings in the space between the rafters must be sealed permanently.

Laying PAVATEX LDB 0.02 airtight membrane

Laying PAVATEX LDB 0.02 airtight membrane

Next, laying of PAVATEX LDB 0.02 flat across the rafters. All connection work must be carried out in accordance with the PAVATEX sealing brochure.

Laying of PAVATHERM-PLUS insulation boards

Laying of PAVATHERM-PLUS insulation boards

The closure of the structure is done by proven, permeable PAVATHERMPLUS insulation boards. Tightly bonded, they fulfil the function of sarking permanently and securely.