Unveiling the Difference: Geomat vs. Geomat+ Drainage Boards in Waterproofing and Below-Grade Construction

In the domain of waterproofing and below-grade construction, drainage boards play a quintessential role in safeguarding structures against water damage. Mar-flex Waterproofing & Building Products, a trailblazer in offering innovative waterproofing solutions, brings to the table two formidable contenders in the drainage board arena – Geomat and Geomat+. This article takes a deep dive into understanding the differences between these two products and their relevance in the construction industry.

 Introduction to Drainage Boards

Drainage boards serve as a protective shield for below-grade structures, diverting water away from the foundation and thus contributing to the longevity of the construction. These boards are critical in preventing hydrostatic pressure build-up, which can cause

severe damage to the structure over time.

 Geomat Drainage Board

Geomat drainage boards from Mar-flex are designed with an ingenious dimpled structure. This structure allows for efficient water flow and excellent drainage capacity. Made of high-density polyethylene (HDPE), Geomat drainage boards are resilient, corrosion-resistant, and provide robust protection against root penetration. These features make them an ideal choice for below-grade applications such as foundation walls, retaining walls, and other underground structures that require dependable waterproofing solutions.

 Geomat+ Drainage Board

Geomat+ takes the drainage board concept to a whole new level. In addition to the HDPE dimpled structure seen in Geomat, Geomat+ boasts an added layer of non-woven geotextile fabric. This fabric is designed to filter out soil particles, allowing only water to pass through. This ensures that the drainage pathways remain unobstructed over time, adding an extra layer of protection. Moreover, the geotextile fabric enhances the drainage board’s frictional characteristics, which can be essential in certain construction applications.

 Key Differences and Applications

  1. Added Protection: Geomat+ offers an additional layer of protection with its geotextile fabric, making it particularly beneficial in applications where soil filtration is critical.
  2. Versatility: Geomat+ is more versatile as it is not only ideal for waterproofing but also excels in soil filtration. This makes it suitable for more varied applications, especially in sites where soil erosion or sediment control is a concern.
  3. Cost Consideration: While Geomat is highly effective as a drainage board, Geomat+ may come at a slightly higher cost due to its enhanced features. The choice between the two can often come down to specific project requirements and budget considerations.

 The Takeaway

Both Geomat and Geomat+ drainage boards from Mar-flex Waterproofing & Building Products are exemplary solutions for waterproofing and protecting below-grade structures. However, the choice between the two should be guided by the specific needs of your construction project. Geomat offers reliable, efficient drainage, while Geomat+ goes a step further by ensuring soil filtration and added stability.

Whether you’re a builder, architect, or property owner, understanding the tools at your disposal is critical in making informed decisions for your below-grade construction and waterproofing needs.

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