Kerabit Super

Kerabit Super is a diffusion-open, product-classified (AKV and AKD) waterproof underlay for roofs with an inclination of 1:3 or steeper. It can be used both as a wind barrier and an underlay. Mesh-reinforced Super is step-resistant, and it has an effective adhesive edge. Kerabit Super is installed longitudinally.

As the product is diffusion-open, a ventilation space is not necessarily required in the roof’s structure between the thermal insulation and the underlay, and, consequentially, this space can be used for additional insulation. As there is no ventilation space, heat loss is also reduced, rendering the overall structure more energy-efficient.

Dimensions/measurements

Tyvek windbarrier tape for repairing and sealing
Isola FlexWrap for fastening the underlay to a chimney and lead-throughs.
Kerabit Butyl Strip for fastening the underlay to the eaves flashings and the laths and the underlay

Manufacturer / Manufactured for	Kerabit Oy, Lohja plant
Country of origin	Czech
Conformity marking	CE
Fire Classification	category E
Waterproofing	class W1
Nominal weight	210 g/m²
Rolls size	1,5 x 50 m / 75 m²
Colours	grey
Packages / pallet	25 rlls
Weight / package	16 kg
Weight / pallet	425 kg

Material		microporous four-layer polypropylene cloth
Sd value		0,03 m
Air tightness		0,002 m³ / (m³hPa)
Rain tightness		tight with the value 400 Pa

Strong and durable

Kerabit Super underlay is constructed of four layers, with a microporous film in the core. Such a structure lends the product durability and excellent tensile strength. Hanging Kerabit Super is step-resistant.

Handling and storage information

Underlay rolls should be kept protected from the weather and sunlight.

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Product documents (PDF)

DoP_Kerabit Super (143 KB)

Technical Data Sheet - Kerabit Super (182 KB)

Asennusohjeet

Installation instructions for Kerabit Super (1 MB)