Dimpled Foundation Waterproofing Membrane

Product Description

  • SUPERSEAL Dimpled Membrane is an extremely durable black dimpled sheet made from High Density Polyethylene (HDPE) plastic. It is mechanically fastened to a foundation wall at final grade height. It can be installed on any type of foundation on the exterior or interior; Poured concrete walls, block walls, brick or stone walls, insulated concrete form walls, and more. All rolls are 65.5’ long and are available in 10 different roll heights ranging from 3’6” to 13’2”. The dimples in the membrane are 5/16” in height, which creates a 5/16” drainage space or airgap between the wall and the back of the membrane. Preventing any soil and/or backfill material from touching the wall itself.  The backfill rests on the outside of the membrane which water can not penetrate through. Surface water migrates through the backfill down to the drain pipe and drainstone at the bottom, near the footing. In the event any water does enter the drainage space, it will fall by gravity to the bottom and migrate into the drainage system at the footing. It is easy to install and very cost effective compared to other products and systems. It can be installed with or without additional coating, in any weather condition, and backfilled immediately. When installed with the appropriate accessories it is backed with a 40 year warranty.
PERMANENT BARRIER BRIDGES WALL CRACKS

SUPERSEAL Dimpled Membrane is made from tough, long lasting plastic that keeps exterior moisture out. It prevents backfill material from touching the foundation wall and bridges typical wall cracks with ease and can be backfilled right away.

DRAINAGE SPACE

The dimples in the membrane create a drainage space that allows the wall to breathe. It keeps 100% of the headwater pressure off the face of the wall. This space allows moisture to condensate outward on to the membrane. By gravity, the moisture then falls to the footing drain for removal.

Applications
  • Can be installed on any type of exterior foundation wall
  • Can be installed on interior basement walls, including those with a french drain
  • Can be installed under floor slabs to control and drain away water/moisture
  • Can be used in subfloor applications such as the protection of flooring materials, controlling water seepage and increasing floor temperatures

INSTALLATION:

Materials and tools will vary depending on your application and the type of foundation. For more detailed instructions click on your application page above.

SUPERSEAL DETAILED INSTRUCTIONS: Installation Instructions

EXTERIOR  APPLICATION:

The keys to a good installation

  • Install to final grade height.
  • Incorporate into the drain system at the footing.
  • It is better if the membrane is installed prior to installing perforated pipe and the drainstone.
  • Ensure you have enough membrane, plugs, and molding strips to complete the area that you are protecting.
  • Follow the Installation instructions.

Addition coating(s) on the wall is not required but provides additional protection. Consult with local building official if one is involved, as they determine what they will accept. This can vary from one city to the next.

PREPARATION

  • Ensure the site is safe and accessible.
  • Make sure that you have all the tools and material necessary to complete the job.
  • Determine the roll heights required and measure the length needed.
  • Determine the final grade height and snap chalk lines. The product should not be exposed to UV for long periods of time.
  • Clean the footing off and repair any imperfections.
  • Use a suitable mastic or tar for patching tie holes, honeycombing, protrusions, etc. This can be found in the roofing or foundation section at most local lumber yards and Hardware stores. (Recognized as foundation mastic, roof patch, and plastic cement). The most cost effective is tar based and black in color. It is available in 1 and 5 gallon pails and also in caulking gun tubes. SUPERSEAL is chemical resistant and compatible with all these types of products.

 

There are 3 steps to the installation – Do not try to do all three steps as you go. It is much easier and quicker to do it in 3 stages

  • Hanging / Plugging / Molding

1. HANGING THE MEMBRANE

Once you have your wall prepped, start by holding the membrane at the chalk line with the dimples go towards the wall and install a SuperPlug about 8-12 inches down. Move down the wall approx. 8-10 feet and install another SuperPlug. Continue this process until all the membrane is hanging on the wall. If you have extra material at the bottom it is flexible enough that it makes a nice 90 degree bend where the wall meets the footing. The membrane can sit directly on top of the footing or extend out to the edge of the footing. Ensure that you have a minimum of 6 inches of drainstone around the drainpipe, on the footing and up the membrane at the bottom.

When you come to an inside or outside corner you can put a slice in the membrane at the bottom to allow the rest of the roll to wrap the corner without cutting the whole roll vertically. Put a SuperPlug 4-6 inches in from each corner, every 2 feet vertically.

OVERLAPS AND SEAMS

Anytime you have an overlap vertically or horizontally it is a minimum of 6 inches. You will find that the dimples nest together like an egg crate. It is good practice to run a bead of the black mastic within the overlap but is not mandatory. Overlaps in sloping areas should be done overlapping the higher piece over the lower piece. This will prevent migrating water to enter the seam. (just like a roof shingle)

WINDOW WELLS

Windows are the # 1 cause of water penetration. Concrete cracks at the weakest point and that is almost always at the bottom of a window opening. If you have any windows that are lower than grade height and require a window well, cut and cap the membrane as close the bottom of the window as possible. Cut and cap the sides vertically so it will end up to be just inside the window well opening on each side. (HINT: you can cap it later when you do the rest of the molding or cap)

After you have hung all the membrane, go back to where you started and start step 2 – plugging

 

2. PLUGGING THE MEMBRANE

  • At the top is where you follow the specific pattern that repeats over and over. The basic pattern is;  Put a plug 8 inches down from the top and install a row of SuperPlugs every 16 inches horizontally. Then 8 inches down for that row of plugs install another row of plugs every 16 inches in between the plugs above. This creates a  W  pattern . (See detailed instructions for more details)
  • In the middle and the bottom, you only have to put plugs every 6-10 feet horizontally. Enough to keep the membrane tight against the wall.  Try to get the bottom plugs as close to the footing as possible to prevent the membrane from moving around while the drain work and backfilling is being done.
  • Plugs are installed every 2 feet vertically on all overlaps
  • Plugs are installed every 2 feet vertically and 4-6 inches in from corners. (inside and outside corners)
  • After all the plugs are in, go back to where you started and start step 3 – Molding/Capping.

 

3. MOLDING or CAPPING

Molding must be installed on all open edges using the Membrane Cap or DimpleGrip Molding.

DimpleGrip Molding is a piece of plastic 4 feet long and 3 ½ inches wide. It has reverse dimples on the back that interlock into the top 4 rows of dimples on the membrane itself. Giving a stronger hold which can reduce the amount of plugs need at the top. It has a soft lip on it that seals the top against the wall. It fits vertically and horizontally into the factory edges of the membrane. If you cut the membrane on an angle, the dimples won’t fit properly, so you would use the Membrane Cap in that spot. You can use DimpleGrip for your entire job if your final grade is level. (HINT: We often recommend to order both types DimpleGrip Molding & Membrane Cap if your job has both level and sloping areas)

Membrane Cap is a piece of plastic 4 feet long and only 1 ½ inches wide that seals all open edges. It is L shaped and smooth on the back. It can be installed horizontally, vertically, and on any angle. You can use the Membrane Cap throughout your entire job. However, you will use more SuperPlugs below the Membrane Cap then the DimpleGrip. (see detailed instructions)

The DimpleGrip and the Membrane Cap are in a bundle with 10 pieces that are  4 feet long equaling 40 linear feet. Both are fastened every 6-8 inches butting each piece together as you go. Both can be cut with a standard utility knife. It is not necessary to overlap them.

Once the molding has been installed, it is good practice to walk around and patch any open spots.

 

FASTENING SYSTEMS

There are two molding systems to choose from. The DimpleGrip System and the Standard System

1)      The DimpleGrip System requires DimpleGrip Molding and SuperPlugs. (see below)

2)      The Standard System requires Membrane Cap and SuperPlugs. (see below)

DIMPLEGRIP FASTENING SYSTEM
(Premium system for ICF’s & Concrete Block)

Requires DimpleGrip Molding for horizontal and vertical edges. Super Plugs fastened 12-16″ OC and Membrane Cap for sloping areas. Small Plugs can be used to fasten corners and overlaps.

1 roll of membrane requires approximately:

  • 2 bundles of DimpleGrip
  • Membrane Cap for slopes and angles – 40 feet per bundle
  • SuperPlugs: 2 bags for 3’6″ to 7’11” per roll or 3 bags for 8’11” to 9’11” per roll

STANDARD FASTENING SYSTEM
(Most economical material cost system)

Requires Membrane Cap for all edges and SuperPlug fastened 8″ OC. Small Plugs can be used to fasten corners and overlaps.

1 roll of membrane requires approximately:

  • 2 bundles of Membrane Caps
  • SuperPlugs: 3 bags for 3’6″ to 7’11” per roll or 4 bags for 8’11” to 9’11” per roll


SuperPlugs

SUPERSEAL super plugs

Each plug has 5 dimples that interlock into the membrane providing superior holding strength over a single plug. Recommended for all areas.

Membrane Cap

SUPERSEAL membrane cap molding

Smooth L shaped molding that caps the membrane – 40 feet per bundle.


DimpleGrip Molding (Optional)

SUPERSEAL dimplegrip molding

Interlocks with the top 4 rows of the membrane along its entire length. Provides superior strength and uses less Super Plugs and labor.

Small Plugs (Optional)

SUPERSEAL small plugs

Fits into individual dimple. Used mostly for contractors with a nail gun system.

 

TOOL REQUIRED

CONCRETE NAIL GUN – For poured walls

The following guns work very well with the system as they hold 40 nails and the installation is quick. The nose piece friction fits the SuperPlug and Small Plug perfectly without any fancy adapters.

HILTI GX 120 https://www.hilti.ca/direct-fastening/electrical-%26-mechanical-fastenings/r3697

HILTI G3 https://www.hilti.ca/direct-fastening/drywall-applications/3538128

Ramset Trakfast http://www.ramset.ca/product/47/trakfast-gas-powered-tool

 

TAPCON – Poured and Block wall Foundations

You can also use 1 ¼ inches Tapcon screws ( 1 ¼ inches x 3/16 inches hexagon head is best). This is a predrill system. This is more time consuming than a nail gun but works well if it you are doing a small job or it’s a onetime use. TAPCON https://www.tapcon.com/products/concrete-screw-anchors

CONCRETE NAILS – Hand nailing

It is possible to use standard concrete nails and a hammer. Concrete varies in hardness in different regions. This method is labour intensive and time consuming. This is usually only done when the concrete is freshly poured and is in the curing process. Test a spot first before continuing.

DECK SCREWS

Standard deck screws are used on ICF and Wood foundations only.

Other tools you may need:

Eye protection, Ear protection, gloves, hammer, Tool belt, tape measure, marker, chalk line, utility knife, ladder, caulking gun or putty knife.

Specifications
PART # IMPERIAL METRIC
SM36107 3’6″ X 65’6″ 230ft² 29 lbs 1.07m x 20m 21.4m² 13kg
SM50150 5’0″ X 65’6″ 325ft² 40 lbs 1.5m x 20m 30m² 18kg
SM60183 6’0″ X 65’6″ 393ft² 49 lbs 1.83m x 20m 36.6m² 22kg
SM67200 6’7″ X 65’6″ 431ft² 53 lbs 2.0m x 20m 40m² 24kg
SM74224 7’4″ X 65’6″ 480ft² 59 lbs 2.24m x 20m 44.8m² 27kg
SM80240 7’11” X 65’6″ 518ft² 64 lbs 2.4m x 20m 48m² 29kg
SM81127 8’11” X 65’6″ 583ft² 72 lbs 2.7m x 20m 54m² 33kg
SM91130 9’11” X 65’6″ 648ft² 80 lbs 3.0m x 20m 60m² 36kg
11’6 & 13’2 ROLLS ARE ONLY AVAILABLE AS A SPECIAL ORDER ITEM
SM11635 11’6″ X 65’6″ 754ft² 93 lbs 3.5m x 20m 70m² 43kg
SM13204 13’2″ X 65’6″ 861ft² 107 lbs 4.0m x 20m 80m² 47kg
Tested and Passes The Following

ICC ESR-3107CCMC# 13098-RCCMC# 13099-R, CGSB, NBC 9.13.3, 9.14.2.1 & IRC R405, R406
Dimpled Sheet
High Density Polyethylene (HDPE)
Available Colors
Black (Standard), Brown (Special order)
Compressive Strength
5200 psf (250 kN/m² )
Dimple Height
5/16″ (8mm)
Fire Rating
B2 (DIN 4102)

Spec Sheet

ICC-ES

CCMC Drainage

CCMC Dampproofing

Dimpled Foundation Membrane Brochure

Interior French Drain Installation

PRICING
  • 3’6″ x 65’6″ (230 sq. ft.) SSDM / 1.07m x 20m $124.20
  • 5’0″ x 65’6″ (325 sq. ft.) SSDM / 1.50m x 20m $175.50
  • 6’0″ x 65’6″ (393 sq. ft.) SSDM / 1.83m x 20m $212.22
  • 6’7″ x 65’6″ (431 sq. ft.) SSDM / 2.00m x 20m $258.60
  • 7’4″ x 65’6″ (480 sq. ft.) SSDM / 2.24m x 20m $288.00
  • 7’11” x 65’6″ (518 sq. ft.) SSDM / 2.40m x 20m $310.80
  • 8’11” x 65’6″ (583 sq. ft.) SSDM / 2.70m x 20m $349.80
  • 9’11” x 65’6″ (648 sq. ft.) SSDM / 3.00m x 20m $388.80
  • 11’6″ x 65’6″ (754 sq. ft.) SSDM / 3.50m x 20m $452.40
  • 13’2″ x 65’6″ (861 sq. ft.) SSDM / 4.00m x 20m $516.60
  • DimpleGrip Molding (Bundle of 40 ft)$45.11
  • Membrane Cap Molding (Bundle of 40 ft)$21.55
  • SuperPlug (Bag of 50)$15.59
  • Small Plug (Bag of 100)$11.02
SHIPPING
Standard USA Shipping: 3-5 days                 Standard Canada Shipping: 5-7 days
          

Installation

WHAT IS SUPERSEAL DIMPLED MEMBRANE?

SUPERSEAL Dimpled Membrane is an environmentally friendly 24 mL high-density polyethylene membrane. SUPERSEAL Dimpled Membrane is resistant to a wide range of chemicals, impervious to root penetration, rot-proof, and unaffected by soil bacteria, fungi, and alkaline environments.

What is it used for?

SUPERSEAL Dimpled Membrane is a permanent waterproofing and drainage membrane that can be installed on any type of foundation, used as a subfloor, under floor slabs, and retrofit applications.

What areas of my home can I use it on?

You can use the membrane as a subfloor,  leaky interior basement walls,  in crawl spaces, and cellars to help control musty odours.

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Rolls & Accessories: