Kerabit 4100 UT Nature

The low-carbon status of Kerabit Nature^® products is achieved, among other things, by replacing part of the traditional raw materials with renewable and recycled raw materials. The carbon emissions (GWPtotal) during the manufacture of Kerabit Nature products are approximately 59 % lower than for corresponding basic products. Apart from environmental impact, the characteristics of the products correspond to the analogous basic products. We are especially careful about the waterproofing properties – we don’t compromise on them!

Kerabit 4100 UT Nature is a torch-on underlay membrane in multi-layer membrane system. This product is used for the waterproofing and radon insulation of foundation walls.

The carrier consists of polyester. The underside of the product is coated with torch-on bitumen and the top side with sand granules.

Dimensions/measurements

Manufacturer / Manufactured for	Kerabit Oy, Lohja plant
Country of origin	Finland
Conformity marking	CE mark
Reaction to fire	Manufacturer’s fire testing certificate
Fire Classification	B_ROOF(t2)
Manufacturer’s declaration of conformity	Kerabit modified bitumen roofing materials
Quality control	Quality control agreement between the Plant and Eurofins Expert Services Oy
Nominal thickness	approx. 3,5 mm
Nominal weight	4000 g/m²
Weight of the supportive layer	170 g/m² (+/- 10 g/m²)
Supportive layer	Polyester
Rolls size	1 x 10 m / 10 m²
Packages / pallet	24 rolls
Weight / package	40 kg
Weight / pallet	985 kg

Handling and storage
Modified bitumen membranes are to be stored on pallets in a dry and cool place. Use a plastic hood or tarpaulin for protection. When the outdoor temperature exceeds +40°C, the rolls must be protected from sunlight.

Applications

This product is used as an underlay and intermediate membrane of multi-layer membrane system and as a tanking membrane. This product is also highly suited for the radon insulation of basements. The interior and exterior surfaces of basement walls made of lightweight aggregate concrete blocks are sealed throughout, from the top down to the footing, by applying thin-coat plaster and by welding a Kerabit 4100 UT modified bitumen membrane onto the exterior.

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Product documents (PDF)

DoP_Kerabit 4100 UT Nature (83 KB)

Certificate of factory production control (1 MB) Manufacturer's Declaration of fire test (176 KB) Safety Information_Bituminous Kerabit roofing, damp proof and vapour barrier materials (132 KB) Technical data Sheet - Kerabit 4100 UT Nature (164 KB) Ympäristöseloste (EPD) Kerabit 4100 UT Nature (4 MB)

Additional information (PDF)

Installation instructions for low-slope roofing (143 KB) Roof slope conversion table (728 KB)