The upper layers of the sheet are saturated during production with color and resins, because of which the possibility of subsequent peeling-off of the color is eliminated. The sheets reveal the true intensity of their coloration only after a certain time on the roof. Owing to the natural oxidation of the bitumen on the surface, the sheets become lighter and thus brighter.

gutta bitumen corrugated sheets, one of the most affordable solutions for roof covers and wall covers, have been in use for decades all over the world.

Quality

In order to guarantee a uniform quality, gutta bitumen corrugated sheets are continuously quality-monitored and tested by the MPA of the TH Karlsruhe. Therefore, we have a world-wide 15-year guarantee for the water impermeability.

High stability with low weight

gutta bitumen corrugated sheets, thanks to the patented multi-layer structure, have a very high stability, and at the same time, a low weight.

Flexibility

The fibers, the majority of which run parallel to the corrugation, result in a high flexibility. The gutta bitumen corrugated sheets thus facilitate an optimum matching even to uneven under-constructions. Thanks to this property, they are ideal for sanitation. Arching radii above 8 m can be laid without any problem.

All gutta corrugated bitumen sheets are CE certified and comply with the European Standard EN 534:06.

The manufacturer undertakes a guarantee of 15 years, only provided that original gutta products are used, and provided that the laying specifications are followed, according to the following guarantee conditions.

The gutta werke guarantee their products guttanit/guttapral/gutta do it bitumen corrugated sheets for roofs and walls, under the following conditions and to the extent outlined below:

Extent of warranty: Water permeability

For justifiable warranty claims due to water permeability within 15 years from the date of the sales slip the gutta werke will replace all the materials of the sheets and the accessories. The warranty is not extended to the cover replacement costs and does not cover damage to corrugated bitumen sheets that was caused by gale force wind, hail, lightening, or by the fault of someone other than the warrantor.

Guarantee conditions

The above guarantee claims can only be filed under adherence to the following conditions:

The gutta werke, on its part, undertakes, depending on the extent of damage, to depute an assessor for evaluation of the damage, or to rectify the damage on goodwill, within 4 weeks of receiving the damage report and provided that there is conformance to the aforementioned conditions.

Guarantee services neither result in an extension of the guarantee period, nor do they start a new guarantee period. Guarantee obligations of the seller towards the end buyer as in the purchase contract for the guttanit/guttapral/gutta do it bitumen corrugated sheets remain unaffected thereby.