Application ⁄ Roof ⁄ Roof renovation system from inside

Roof renovation system from inside

With the roof insulation from the inside option, every requirement for an old building’s roof can be satisfied. With the PAVATEX internal roof renovation system, you can easily improve your roof to a level that corresponds to currently-required standards for new construction.

Roof renovation system from inside

  • Improved thermal protection. 
  • Lower energy consumption. 
  • Increased value / preservation of value.
  • Increased quality of life and comfort. 
  • Contribution to environmental protection. 

With PAVATHERM-PROFIL

The plaster bearing insulating fibreboard PAVATHERM-PROFIL for additional internal roof insulation allows creative internal finishes.

PAVAFLEXPAVATEX DB 28PAVATHERM-PROFIL
PAVAFLEX
PAVAFLEXPAVATEX DB 28PAVATHERM-PROFIL
PAVATEX DB 28
PAVAFLEXPAVATEX DB 28PAVATHERM-PROFIL
PAVATHERM-PROFIL

For connections and sealing:

PAVACOLL, PAVAFIX 60, PAVATAPE 20, PAVATAPE FLEX, PAVAFIX 60

Processing

For combined insulation between and below rafters using PAVAFLEX and PAVATHERM-PROFIL, attention must basically be paid to the following:

  • If the existing sarking is permeable, the insulation can be carried out as full rafter-deep insulation. 
  • For impermeable membranes, sheathing or sarking, effective ventilation must be created as an additional measure.

 

 

PAVAFLEX between and possibly under the rafters

PAVAFLEX between and possibly under the rafters

If insulation already exists between the rafters and is intact, it can stay in place. Otherwise, the space between the rafters is completely insulated with void-free PAVAFLEX.

Installation of substructure

Installation of substructure

In addition, a substructure can be installed at right angles to the axis of the rafters with flexible PAVAFLEX woodfibre insulation material between them.

Installation of the PAVATEX DB 28 vapour control membrane

Installation of the PAVATEX DB 28 vapour control membrane

Depending on the construction layout, an additional vapour control membrane such as PAVATEX DB 28 should be installed on the underside of the rafters or new substructure.

Installation of PAVATHERM-PROFIL

Installation of PAVATHERM-PROFIL

Next, PAVATHERM-PROFIL insulation boards are mounted on the substructure and fixed appropriately. A permeable red chalk or clay-based mineral plaster forms the internal closure.