Rising damp and related problems can often be traced back to the incorrect or inadequate management of subsoil and surface water around a structure. Attention must be paid to the ponding of surface water which leads to soggy and damp patches in the soil indicating an abnormally high water table around and ultimately under a structure leading to the often costly dampproofing procedures required to rectify of damp issues.
Specialized drainage systems are often required in the management of surface and subsoil moisture.
A: SUBSOIL DRAINAGE:
The most effective way of controlling the buildup of subsoil moisture is by the installation of a special subsoil perforated drainage system to divert subsoil moisture away from the structure.
INSTALLATION PROCEDURE:
- Excavation of a trench to the correct depth and levels.
- Dampproofing the base of a structure if close to the foundation of a structure.
- Laying of a perforated drainage pipe on a Biddum fabric wrap.
- Drainage pipe covered with crushed stone & wrapped in the Biddum fabric.
- Backfilling and compacting of soil.
- SURFACE DRAINAGE:
Surface water can be controlled either by the correct landscaping of soil around a structure which is often impossible to achieve due to demographics OR by installing specially constructed drainage pits with grid covers and underground piping to direct surface water away from a structure to prevent the ponding of surface water and subsequent increase in soil moisture.
INSTALLATION:
- The construction of special drainage sumps & subsoil drainage covered with grid covers.
- Completed system.