The Problems

Installing foundation wall waterproofing on vertical surfaces can present several challenges. Conventional drainboards have been commoditized, driving manufacturers to cost-savings efforts that include using cheaper geotextiles and compromised performance. As a result, incidents of clogging have increased. Additionally, these cheaper geotextiles have less resistance to soil pressure after backfilling, which causes a reduction in drainage space and, therefore, a reduction in drainage rates.

The Solution

DELTA®-TERRAXX is the ideal solution for vertical drainage requirements. It offers the ideal combination of compressive strength, drainage performance, handling, and installation ease.

The large, light, and easily cut rolls save labor and make installation much easier than traditional drainage composites. Large areas are covered more quickly and with fewer rolls, saving labor and materials.

The unique geotextile ensures that DELTA®-TERRAXX won’t clog. The special manufacturing process means that in situ soil pressures will compromise neither the drainage space around and between the dimples nor the drainage rate.

The DELTA®-TERRAXX drainage system ensures an ideal water drainage and permanently protects foundation walls from frost damage.

Product Details
Product Benefits

• Heat-bonded special clog-resistant geotextile
• Large 2 m wide rolls for faster installation
• Lightweight and easily cut
• Optimal combination of compressive strength and drainage capacity
• Compressive strength of 8,969 psf (429 kPa)
• Tested long-term durability of up to 100 years
• Maintains drainage space, even after placement of backfill or overburden
• Available in rolls 2 m (6.6’) by 12.5 m (41’)

• Suitable for vertical applications up to seven stories below grade
DELTA®-TERRAXX PLUS has a self-adhering flat tab, allowing it to lay flat and stay in place
• Lays flat and stays in place due to self-adhering flat tab
• Easy to carry and easy to cut
• Drains reliably without clogging
• No loss of drainage capacity caused by soil pressure, snow, landscaping and plantings, pedestrians, and significant vehicle wheel point loads