The special sealant to fill joints between bitumen sheeting.
The fischer roof sealing compound Roof BI consists of a special formula based on bitumen, and seals roofing membranes and roofing felt permanently and very securely. It can also be used to bond bitumen shingles, grouting roof penetrations such as chimneys or light domes. Also holds to moist substrates without a base layer. Non-corrosive, can be used on aluminium, copper and zinc-plated surfaces.
