KRONfol - Permeable underlays - KRONmat

KRONfol - Permeable underlays

KRONfol - Permeable underlaysKRONfol roofing membranes fulfill the role of an initial roofing layer, enhancing tightness of the primary roofing laid on battens and counterbattens as well as protecting the structure of pitched roofs and their insulation against moisture.

Application of KRONfol membranes in the roof structures brings many advantages for homeowners as well as fitters:

 

for homeowners:

  • high, uniform permeability
  • watertightness protecting the roof
  • resistance to UV radiation

 

 

for contractors:

  • high flexibility and lightweight facilitating installation
  •  high mechanical strength

 

Apart from the advantages mentioned above, high quality KRONfol membranes fulfill the following functions:

  • condensation control
  • additional water-draining layer
  • watertightness
  • windproofness

Types:

KRONfol membranes are intended for pitched roofs ≥ 20° under every type of roofing with air circulation along counter-battens.
KRONfol membranes protect roof structures with both habitable and non-habitable loft spaces. In the roofs with lower pitches (12°-19°) KRONfol membranes can be laid only when fulfilling special conditions which have to be taken into consideration in the roof design.

Types of vapor-permeable foils:

  Types of vapor-permeable foils: Types of vapor-permeable foils: Types of vapor-permeable foils: Types of vapor-permeable foils: Types of vapor-permeable foils: Types of vapor-permeable foils:
Technical specification KRONfol 100 KRONfol 120 KRONfol 140 KRONfol 160 KRONfol 180 KRONfol 225
Layers 3 3 3 3 3 3
Sd [m] 0,015 0,015 0,015 0,015 0,015 0,015
Resistance to water penetration before and after artificial ageing Class W1 Class W1 Class W1 Class W1 Class W1 Class W1
Temperature application range [°C] -40 do +120 -40 do +120 -40 do +120 -40 do +120 -40 do +120 -40 do +120
UV-stabilised [months] 3 3 3 3 3 3
Material polypropylene polypropylene polypropylene polypropylene polypropylene polypropylene
Fire class E-d2 E-d2 E E E E-d2
Use on full decking - yes yes yes yes yes
Logistic details            
Roll dimensions

1,6 m x 50 m
(80 m2)

1,6 m x 50 m
​(80 m2)
1,6 m x 50 m
​(80 m2)
1,6 m x 50 m
​(80 m2)
11,6 m x 50 m
​(80 m2)
1,6 m x 50 m
​(80 m2)
Number of rolls per pallet 49 49 36 36 25 25
Width
length
height
of pallet

1,2 m
1,65 m
1,1m

1,2 m
1,65 m
1,15 m
1,2 m
1,65 m
1,2 m
1,2 m
1,65 m
1,25 m
1,2 m
1,65 m
1,3 m
1,2 m
1,65 m
1,35 m

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