Waterproof Membranes

When it comes to your foundation, waterproofing and damp-proofing are not equal. Damp-proofing products are often referred to as “tar” and only meet the minimum building code for new construction. Damp-proofing only slows the penetration of soil moisture through the concrete – it has no resistance against water under hydrostatic pressure. Often damp-proofing products become brittle when dry and can be easily broken down by ground water. Damp-proofing does not have the ability to span cracks – when the concrete cracks, so does the damp-proofing, therefore leaving you vulnerable to water intrusion.

Waterproofing a foundation is done by spraying an elastomeric membrane onto the exterior of the foundation. An elastomeric membrane stops water from penetrating the concrete, even under hydrostatic pressure. Not only will an elastomeric membrane stop water, it also has the ability to span foundation shrinkage cracks, ensuring the foundation is completely protected.

At LETY Construction, we install two waterproofing options, both by Tremco Barrier Solutions; Tuff-N-Dri Basement Waterproofing System and Watchdog Waterproofing. 

Watchdog Waterproofing carries a 10-year manufacturer’s warranty when applied to new construction. 

The Tuff-N-Dri Basement Waterproofing System carries a 30-year “Dry Basement Guarantee” from the manufacturer warranty when applied to new construction with Warm-N-Dri foundation board. 

Both products are spray installed to allow for a seamless installation, further ensuring the foundation is protected (no seams susceptible to failure).

These membranes can be installed quickly and easily at the time of construction or, with excavation, they can be applied to existing structures. If excavation is required, care is taken to minimize disturbance of existing landscaping.