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