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Earth sheltered homes are faced with a constant assault by hydrostatic pressure and water trying to leak in. Undrained or poorly-drained walls can result in a multitude of problems ranging from structural failure of the wall itself to damage to building contents from high humidity levels. Unprotected exterior waterproofing can be damaged, break down or even disintegrate over time. Damp walls can transmit interior heat into the surrounding soil. Failure to provide proper drainage for an underground wall will always result in a build-up of hydrostatic pressure. The load on an undrained wall is often double that on a properly drained wall. Without drainage, the wall would have to be built much stronger with the resultant increase in cost and weight.
Hydrostatic pressure is the driving force for seepage of water through the wall into the interior of the structure. In addition, high hydrostatic pressure often shortens the life of waterproofing materials.
SITEDRAIN prefabricated drains eliminate hydrostatic pressure that can accumulate against below grade structures in low permeability soils. The three dimensional molded core has a filter fabric bonded to one side. The fabric retains soil particles while allowing water to freely enter the drainage core.
SITEDRAIN Sheet 90 is designed primarily for vertical applications where moderate compressive strength and flow capacity are adequate. The core side of SITEDRAIN Sheet 90 is placed against the wall surface of the foundation, or other similar structure.
SITEDRAIN Strip Drain is designed to replace perforated pipe and stone drainage systems in various applications. It provides significantly higher water collection open area in addition to being lightweight and easy to install.
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