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DELTA®-MS Underslab

DELTA®-MS Underslab

Delta-MS is an Affordable, Stand Alone Waterproofing System thats Code Approved and GREEN!
Skid Pricing Available: Please call 877.293.0784
The Problem
Floor slabs collect moisture and mold when composed of porous concrete. In order to protect a building’s foundation and provide longevity, proper moisture control is necessary. A sub-base course will prevent the concrete from pulling water up from the dirt, which would allow moisture to seep through walls, floor, and joints.

The Solution
DELTA®-MS UNDERSLAB provides reliable, long-term protection for permanently dry concrete slabs. It is a high-performance vapor retarder and sub-base course with high compressive strength. It also acts as a capillary break, allowing long-term protection from rising moisture.

  • Dimple board
  • Middle layer is manufactured with an exclusive co-extrusion process, utilizing 60% recycled High-Density Polyethylene (HDPE)
  • Two thin outer layers are composed of a specific grade of virgin HDPE

5' Rolls:
  • Please allow 1-5 Business Days for Delivery.
6.6', 7', & 8' Rolls:
  • Mix & Match (4) Rolls.
  • Please allow 7-10 Business Days for Delivery.
9.8' Rolls:
  • Minimum Order (11) Rolls
  • Please allow 7-10 Business Days for Delivery.

Dorken Underslab
Item# Item Name Our Price Qty Add
DLMS-5.0-U DELTA®- MS 5.0 ft x 65.6 ft (328 SqFt/Roll) $ .59 psf
DLMS-6.6-U DELTA®- MS 6' 6" ft x 65.6 ft (433 SqFt/Roll) $ .49 psf
DLMS-7.0-U DELTA®- MS 7.0 ft x 65.6 ft (459.2 SqFt/Roll) $ .48 psf
DLMS-8.0-U DELTA®- MS 8.0 ft x 65.6 ft (524.8 SqFt/Roll) $ .47 psf
DLMS-9.8-U DELTA®- MS 9' 10" ft x 65.6 ft (645 SqFt/Roll) $ .50 psf (11 Roll Minimum)
Check the items you wish to purchase, then click

  • Vapor retarder; protects the foundation from rising moisture
  • Outstanding compressive strength and impact resistance
  • Unrivaled sustainability and long-term performance
  • Acts as a capillary break under the slab
  • Reduces or even eliminates the need for expensive gravel
  • Composed of 60% recycled HDPE, the product is environmentally friendly
  • Outer layers, composed of virgin HDPE, protect the recycled HDPE from polymer degradation caused by oxidation and environmental influences like acidic soils or alkalinity (concrete)
  • Virgin HDPE stabilizes the product against chemical and environmental stress cracking
  • Tough and durable – dimpled sheet can endure the rigors of jobsite installation
  • Easy to unroll and install, no equipment or additional excavation required

Technical Specs:

Product name



chocolate brown with orange stripe


high-density polyethylene (HDPE)

Dimple height

apprx. 5/16" (8 mm)

Compressive strength

apprx. 5,200 psf (250 kN/m²)

Roll dimensions

3.5' x 65.6' (1.07 x 20 m)
5.0' x 65.6' (1.52 x 20 m)
6.0' x 65.6' (1.83 x 20 m)
6.6' x 65.6' (2.00 x 20 m)
7.0' x 65.6' (2.13 x 20 m)
8.0' x 65.6' (2.45 x 20 m)
9.8' x 65.6' (3.00 x 20 m)

Air-gap volume between dimples

apprx. 0.13 gal/ft² (5.3 l/m²)

Temperature range

-22°F to +176°F (-30°C to +80°C)

Chemical properties

excellent chemical resistance, no root-penetration, rot-proof, approved for drinking water applications


non-toxic, non-polluting


B2 according DIN 4102 B1 available upon request

Service life expectancy

> 25 years (at pH between 4 and 0, and temperature < 25°C). The membrane should not be exposed to UV light for more than 30 days

Codes: Wall Waterproofing (USA) -ICC-ES, ESR 2303
Drainage Layer -CCMC # 12788-R
Damproofing - CCMC # 12658-R

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