PAM TIES EXTERNAL WATERPROOFING

Self-Adhesive Tanking Membranes

Protect below-ground structures with professional self-adhesive tanking membranes, bitumen primer and external drainage protection systems.

Ideal for specified basement waterproofing, foundations, retaining walls and lift pits. Our featured membrane and primer kit brings the two essential products together.

BUY TANKING KIT – £216.88 → MEMBRANE ROLL ONLY

Below-Ground Waterproofing Cold-Applied Membrane 15m Roll Length Primer Kit Available

FEATURED MEMBRANE + PRIMER KIT Self adhesive tanking membrane 1m x 15m with 5 litre bitumen primer

Self-Adhesive Tanking Membrane + 5L Bitumen Primer £216.88 1m x 15m roll plus 5 litres of primer BUY THE COMPLETE KIT →

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Self-Adhesive Cold-applied tanking membrane

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Easy to Apply Peel-away release film system

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Tough Construction HDPE and modified bitumen

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Flexible Options Rolls, kits and drainage layers

Membrane + Primer Kit Our featured £216.88 package Tanking Membrane Roll 1m x 15m — £166 Primer & Double Drain Supporting waterproofing products Installation Advice Preparation, overlaps and protection

OUR MAIN WATERPROOFING PRODUCTS Self-Adhesive Tanking Membrane Kits & Rolls

Start with our membrane and primer kit, or choose the standalone membrane if you already have the correct primer.

FEATURED KIT — £216.88 Self Adhesive Tanking Membrane 1m x 15m Roll with 5 litres of Bitumen Primer

MEMBRANE + PRIMER PACKAGE Self-Adhesive Tanking Membrane – 1m x 15m Roll + 5L Bitumen Primer

Our featured tanking package combines the self-adhesive waterproofing membrane with 5 litres of bitumen primer for surface preparation.

The membrane uses an HDPE carrier with polymer-modified bitumen to form a tough waterproofing layer for suitable below-ground applications.

Priming the prepared substrate helps promote effective adhesion before applying the waterproofing sheet.

1m x 15m membrane roll
5 litres of bitumen primer
15m² nominal roll area
Cold-applied membrane system
Peel-away release film
Suitable for specified tanking work
HDPE/modified bitumen composition
For prepared masonry and concrete

£216.88 SAVE £3.11 compared with buying separately

Based on the supplied individual membrane and primer prices.

BUY MEMBRANE + PRIMER KIT →

SECOND MAIN PRODUCT Self-Adhesive Tanking Membrane – Roll Only

Already have the appropriate bitumen primer? Purchase the membrane separately.

Self Adhesive Tanking Membrane 1 metre x 15 metre roll

STANDALONE WATERPROOFING MEMBRANE Self-Adhesive Tanking Membrane – 1m x 15m Roll

A robust self-adhesive tanking membrane suitable for specified vertical and horizontal waterproofing applications.

Designed for below-ground walls, foundations, basements, lift pits and retaining structures when installed as part of an appropriate waterproofing design.

The cold-applied material uses polymer-modified bitumen on a high-density polyethylene carrier. It offers resistance to puncture and tearing and requires no torch application.

£166.00

15m² nominal roll area before overlaps, detailing and wastage. Primer sold separately.

BUY SELF-ADHESIVE MEMBRANE →

COMPLETE YOUR WATERPROOFING PROJECT Bitumen Primer & External Drainage Membrane

Supporting products for substrate preparation and protecting below-ground waterproofing systems.

External Waterproofing Double Drain 2m x 15m roll

DRAINAGE AND PROTECTION External Waterproofing Membrane Double Drain – 2m x 15m

Double Drain forms a drainage and protection layer over a primary external waterproofing membrane.

Its studded HDPE construction and bonded filter fabric provide drainage channels and help protect the underlying waterproofing system during backfilling.

£264.00

30m² nominal area. Not a substitute for a primary waterproofing membrane.

BUY DOUBLE DRAIN →

Quick drying self adhesive bitumen primer 5 litre

SURFACE PREPARATION Bitumen Primer – Self Adhesive, Quick Dry – 5 Litre

Fast-drying bituminous primer designed to prepare compatible surfaces prior to applying specified bitumen waterproofing membranes and systems.

Helps bind dust on porous surfaces and promote adhesion. Suitable substrates may include concrete, brickwork and certain metal or existing bituminous surfaces when properly prepared.

£53.99

5-litre container. Follow the primer product instructions.

BUY BITUMEN PRIMER →

EXTERNAL TANKING EXPLAINED What Is Self-Adhesive Tanking Membrane?

Self-adhesive tanking membrane is a waterproof sheet material used as part of a specified structural waterproofing system.

The PAM Ties membrane combines high-density polyethylene with SBS polymer-modified bitumen. The adhesive layer allows it to bond to correctly primed and prepared surfaces.

The membrane is applied cold, avoiding the need for heat-torch application. A removable release film protects the adhesive until it is ready to be installed.

It is suitable for selected below-ground wall and foundation waterproofing projects, including basements, retaining walls and lift pits.

Self-Adhesive Membrane Advantages

Cold applied — no torch required
Polymer-modified bitumen layer
Tough HDPE carrier
Good resistance to puncture and tearing
Suitable for vertical tanking applications
Can be used horizontally where specified
Peel-away protective release film
Compatible primer helps adhesion

A COMPLETE BELOW-GROUND APPROACH How the Waterproofing Products Work Together

Membrane, primer and drainage protection perform different functions within a waterproofing installation.

Bitumen Primer

Prepares an appropriate substrate and supports bonding of the self-adhesive membrane. The correct preparation and drying requirements must be followed.

Self-Adhesive Tanking Membrane

Forms the primary waterproofing layer in a suitable design. Sealed overlaps, corners, penetrations and junctions require careful detailing.

Double Drain Protection

Provides a drainage and protection layer over the primary waterproofing, directing water to a properly designed drainage arrangement.

APPLICATION GUIDANCE Installing Self-Adhesive Tanking Membrane

Follow the manufacturer's current instructions and the waterproofing design for the project.

Prepare the Substrate

Check the wall is sound, suitably dry or otherwise acceptable for the primer, and free from loose material, dust and contaminants. Repair defects and prepare junctions as specified.

Prime the Surface

Apply the correct bitumen primer to the prepared substrate. The membrane's published instructions specify a two-coat primer application.

Bond the Membrane

Progressively remove the release film, position the membrane and smooth from the centre towards the edges to minimise trapped air. Firmly roll to ensure bonding.

Seal Sheet Overlaps

The published product instructions specify 75mm sheet overlaps and additional detailing around internal and external corners.

Protect the Membrane

Provide suitable protection promptly after installation. The product instructions call for covering the membrane within 2–3 days.

Provide Drainage

Where the design calls for drainage, install a suitable protection or drainage layer and connect to an appropriate drainage outlet.

Important Waterproofing Design Note

Below-ground waterproofing needs to account for ground conditions, potential water pressure, structure type, movement, drainage and expected internal environment.

A single membrane should not automatically be assumed suitable for every basement or below-ground project. Obtain a waterproofing design appropriate to the applicable edition of BS 8102 and site conditions.

PLAN YOUR MATERIALS Tanking Membrane Roll Sizes & Coverage

Check the nominal roll area before allowing for overlaps and detailed finishing.

Product	Dimensions	Nominal Area	Price
Membrane + Primer Kit	1m x 15m membrane + 5L primer	15m²	£216.88
Self-Adhesive Membrane Roll	1m x 15m	15m²	£166.00
External Double Drain	2m x 15m	30m²	£264.00
Bitumen Primer	5-litre container	Coverage varies by substrate	£53.99

Nominal membrane area is calculated from the marketed roll dimensions. Effective installed coverage is lower once overlaps, corners, detailing and wastage are allowed for.

COMPARE ALL FOUR PRODUCTS External Waterproofing Products & Prices

Find the correct product for waterproofing, preparation or drainage protection.

Product	Function	Price	Shop
Self-Adhesive Membrane + 5L Primer	Waterproofing membrane and primer kit	£216.88	BUY KIT →
Self-Adhesive Tanking Membrane	Primary waterproofing sheet	£166.00	BUY ROLL →
External Double Drain	Drainage and membrane protection	£264.00	BUY DOUBLE DRAIN →
Quick Dry Bitumen Primer – 5L	Priming and adhesion preparation	£53.99	BUY PRIMER →

PROTECT YOUR TANKING SYSTEM Why Use Double Drain External Membrane?

Below-ground waterproofing systems can be vulnerable to damage during backfilling and exposure to surrounding ground materials.

Double Drain provides a studded HDPE drainage layer with a bonded polypropylene filter fabric.

The shaped core creates drainage pathways, while the filter layer helps prevent surrounding backfill from obstructing the channels.

Double Drain should be installed over an appropriate primary waterproofing system, with correct top-edge detailing and drainage.

Double Drain Advantages

30m² nominal roll area
2m wide x 15m long
Studded HDPE core
Bonded filter fabric
External wall drainage layer
Protection to primary waterproofing
Vertical or horizontal installation as specified
Requires an appropriate drainage outlet

BUY DOUBLE DRAIN →

EXTERNAL WATERPROOFING HELP Self-Adhesive Tanking Membrane FAQs

Common questions about membrane installation, bitumen primer, external waterproofing and drainage.

What is self-adhesive tanking membrane?

It is a waterproofing sheet with an adhesive layer designed to bond to properly prepared and primed substrates as part of a suitable structural waterproofing system.

What is included in the £216.88 kit?

The listed kit combines one 1m x 15m self-adhesive tanking membrane roll with 5 litres of bitumen primer. Check the product page for current package details.

Is the membrane and primer kit better value?

At the supplied prices, the separate membrane and primer would total £219.99. The combined kit costs £216.88, a saving of £3.11.

How much does one roll cover?

The marketed 1m x 15m roll provides a nominal area of 15m² before allowing for overlaps, detailing and cutting wastage.

Do I need primer with self-adhesive membrane?

The membrane's published installation instructions advise the use of bitumen primer on the prepared surface. The stated procedure specifies a two-coat primer application.

Can self-adhesive membrane be used on basement walls?

Yes, the product is intended for suitable below-ground applications, including basement walls, when correctly specified and installed. The complete waterproofing design must address site conditions.

Can I use it on retaining walls?

Retaining walls are among the intended applications, provided the membrane forms part of an appropriate below-ground waterproofing design with suitable protection.

Does the membrane require a heat torch?

No. The listed self-adhesive membrane is cold applied, using its own adhesive layer on a suitably primed and prepared substrate.

How much should the membrane sheets overlap?

The published installation instructions specify 75mm overlaps, with additional detailing at internal and external corners.

How soon should the membrane be protected?

The product instructions advise covering the membrane within 2–3 days of application. Use the protection system specified for the project.

What is Double Drain membrane?

Double Drain is a studded drainage and protection layer intended to sit over a primary waterproofing membrane on suitable below-ground structures.

Can Double Drain replace self-adhesive tanking membrane?

No. Double Drain primarily provides drainage and protection. The manufacturer specifies its installation over a primary waterproofing system rather than as a direct replacement.

Can the membrane be applied to concrete?

The membrane is intended for suitable concrete and masonry substrates. Surface preparation, priming, condition and compatibility must be checked before installation.

Is self-adhesive tanking suitable for horizontal surfaces?

The product is described for both vertical tanking and suitable horizontal self-adhesive applications. Follow the specific installation requirements.

Does the tanking membrane stop rising damp?

The membrane is designed for waterproofing applications rather than replacing a properly specified chemical or physical damp-proof course. The correct system depends on the diagnosed moisture source.

Is bitumen primer quick drying?

The listed primer is described as quick drying, with an indicative drying time of approximately 30 minutes at 20°C. Actual drying depends on substrate and conditions.

Is this membrane suitable for every basement?

No. Below-ground waterproofing suitability depends on the structure, ground conditions, water pressure, drainage and project design. Seek appropriate professional design advice where required.

MORE PAM TIES WATERPROOFING SOLUTIONS Related Damp Proofing & Waterproofing Products

Explore complementary products for below-ground waterproofing, damp protection and diagnosis.

Damp Proofing Kits Internal membranes and kits DPC Injection Cream Chemical damp-proof course products Limelite Plaster Breathable wall restoration system Damp Meters & Survey Tools Moisture assessment equipment

PAM TIES EXTERNAL TANKING Waterproof Your Project With Confidence

Choose the self-adhesive tanking membrane and bitumen primer kit for £216.88, or buy the standalone 15m membrane roll for £166.00.

BUY MEMBRANE + PRIMER KIT – £216.88 →

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Self-Adhesive Tanking Membranes