Green Roofs for Roof Gardens & Planters/Green Roofs/Gardens & Planters Roof

Green Roofs for Roof Gardens & Planters, Green Roofs, Gardens & Planters Roof

The Problem
Since historic times, civil engineers and builders have used crushed stone (aggregate) or a combination of stone and some sort of pipe for soil drainage. While providing reasonably satisfactory results, aggregate drainage has several drawbacks.

Clean and properly sized material is often expensive or not readily available. Transportation is expensive due to weight and volume. Quality control requires close monitoring of material and construction. Waterproofing materials have to be protected from damage from the aggregate and installation equipment. Aggregate tends to clog with soil over time, thereby reducing drainage capability. Despite great care in the design and construction of aggregate drains, their limitations often result in increased hydrostatic pressure, which increases loads on the structure and allows moisture intrusion into the structure.

The Solution
The availability of plastic geotextile filter fabrics in the 1960's LED to the development of prefabricated plastic drainage material.

This new type of drain, sometimes referred to as prefabricated drain, combined the soil retention capability of geotextiles with the water carrying capacity of specially formed plastic drain cores. The result was new and cost effective drainage materials for subsurface soil drainage.

Continual development over the past forty years has resulted in today's prefabricated sheet drains that are now available with a wide choice of size, compressive strength, flow rate, filtration, and chemical resistance to suit virtually any drainage application.

Prefabricated sheet drains have two components that act as replacements to the aggregate system
1) The geotextile replaces the aggregate function for water collection and allows the water to enter the drain without clogging the core and
2) the formed plastic core replaces the pipe function for transporting the collected water. Sheet drains typically have a flat back, which is placed against the underground structure. For use against soft waterproofing materials, drains may have a film attached to the backside to protect waterproofing material from flowing into the back of the cones in the drain.
Water, which flows through the fabric and into the core, is removed in several ways depending upon the drainage situation.

One of the newest methods is through the use of the DRAIN system, which has a
Larger profile core at the bottom to serve as a high flow conduit to move water to the designated drainage exits.

DRAINAGE SYSTEMS TO FIT YOUR
Foundation Walls
Sheet drain used on the outside wall intercepts ground water before it reaches the structure. Water is easily routed by the TOTAL-DRAIN system to a discharge pipe or sump. The sheet drain reduces hydrostatic pressure load on the walls and slab, which may permit a less expensive structure. Sheet drain also protects waterproofing and aids in keeping moisture from entering the basement, as well as reducing heat loss into the surrounding soil.

Horizontal, or a combination of horizontal and vertical drain, may be used.
Landfill Caps & Underdrains
Sheet drain intercepts rain water in the landfill cap and routes it away from the landfill. Installing sheet drain under or on top of the landfill liner provides controlled exit of leachate.
Athletic Fields, Golf Courses, Playgrounds, & Landscaping
The high flow capacity of AMERDRAIN sheet drain and AKWADRAIN sheet drain makes it ideal for quick drainage of playing fields and golf courses where early use after rains is desired

Retaining Walls & Bridge Abutments
Use sheet drain to reduce hydrostatic pressure from the backfill behind the wall and maintain the stability the entire height of the wall.