Reliable building drainage
A reliable building drainage system ensures durable protection of basements from humidity and keeps the buildings dry. Since proper drainage could help to prevent 90 % of all basement defects. Foundation slabs and walls with soil contact require protection with a drainage system according to DIN 4095. Opti-drän consisting of a straight length drainage pipe, shaft and geotextile constitutes a complete system that is perfectly compliant with all DIN 4095 requirements.
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