Steep roof insulating system puren Plus

puren Plus

This roof insulating system with top values of TCG (WLS) 026/027 with its diffusion-open system supports all prerequisites for a comfortable living climate and avoids physical building damage

puren® Plus is made of high-performance PUR/PIR rigid foam insulating material (polyurethane) with double-sided, diffusion-open special fleece coating for insulation above rafters.   Topside laminated with additional diffusion-open, high-tech Diffucell® roof-deck foil with extra-wide overlaps with self-adhesive seams for cold or hot welding.




  • Application type DAD
  • Building material class B2
  • Full-surface insulation 80-100 mm TCG (WLS) 027, 120 - 180 mm TCG (WLS) 026 with no thermal bridging for installation atop rafters
  • High thermal insulation at low material thicknesses
  • All-around tongue+groove joint
  • Top side laminated with diffusion-open high-tech Diffucell® roof-deck foil (sd = 0.02 m), self-adhesive seams (“adhesive-on-adhesive" system)
  • Can be combined with any type of insulation between rafters (please comply with general structural building regulations)
  • Executed as roof-deck foil protected against splitting of seams and perforation (add. measure class 3) in combination with the puren nail sealing tape
  • Printed grid as cutting aid

Outer dimensions wide 2400 x 1020 mm
Fitting dimensions wide 2380 x 1000 mm
Outer dimensions narrow 2400 x 600 mm
Fitting dimensions narrow 2380 x 580 mm

Thickness wide format:
80 - 180 mm
Thickness narrow format:
80 - 160 mm

You have more questions ?

Please contact here your Regional Sales Manager.


Declarations of Performance

puren gmbh
Rengoldshauser Str. 4
88662 Überlingen

Tel: +49 (0)7551 / 80 99 0
Fax: +49 (0)7551 / 80 99 20