The Type C waterproofing system involves the application of a durable, flexible membrane directly to the internal face of the basement walls and floors. This membrane acts as a barrier, preventing water penetration from the ground and surrounding soil. It is typically combined with internal drainage solutions such as channels and sump pumps to manage and divert any water out of the basement.
Components of the Type C System:
1. Internal Membrane
– Usually a multi-layer, flexible, chemical-resistant membrane applied to the interior surfaces of basement walls and floors.
– Materials used include polymer-modified bitumen, liquid-applied waterproof coatings, or sheet membranes like polypropylene or rubberized membranes.
2. Drainage Channels
– Internal channels or drainage installed to collect any water that infiltrates the membrane.
– These channels direct water towards sump pumps for removal.
3. Sump Pump System
– Submersible pumps, single or double with alarms and battery backup to remove any water ingress that infiltrates behind our system.