PREPRUFE® pre-applied waterproofing solutions
A high performance, fully adhered, pre-applied waterproofing system for critical below grade applications.
Challenges of below grade waterproofing.
Below grade waterproofing is a standout challenge for any construction project. Leaks from groundwater, storm water runoff or irrigation water may impact the foundation of any building that's improperly waterproofed—and when concrete is involved, there are any number of ways that water can travel into and around a structure.
- Water can come up through the seams of a poorly designed or improperly installed waterproofing membrane
- Job site conditions such as dust can spoil the adhesion of membrane to concrete and prevent a system from performing as designed
- Imperfections, voids and cracks in concrete can create a pathway for water to migrate in and around a structure.
To manage the risks outlined above and meet the challenges of below-grade construction, a robust, high performing and easily installed waterproofing system is required.
PREPRUFE® Product Documents
| Product Name | Product Data Sheet | Product Brochure |
| PREPRUFE® 800PA/ 800PA LT Membrane (UK/IE Version) | ||
| PREPRUFE® Plus Membranes (UK/IE Version) | ||
| PREPRUFE® SC1 Primer (UK/IE Version) | ||
| PREPRUFE® Tape |
Detail Drawings
| Product Name | DWG | |
| PP003-0516 - Pile Heads Detail Drawing | ||
| PP004-0516 - Slab Penetrations Detail Drawing | ||
| PP005-0516 - New to Existing Slab Detail Drawing | ||
| PP006-0516 - Wall Construction / Expansion Joints Detail Drawing | ||
| PP007-0516 - Sheet Piling Options Detail Drawing | ||
| PP008-0516 - Wall Penetrations Detail Drawing | ||
| PP009-0516 - Wall Base Against Permanent Shutter Detail Drawing | ||
| PP01-0516 - Overlaps Detail Drawing | ||
| PP010-0516 - Wall Base With Drainage Sheet Detail Drawing | ||
| PP011-0516 - Wall to Upper Level Slab 01 Detail Drawing | ||
| PP012-0516 - Wall to Upper Level Slab 02 Detail Drawing | ||
| PP013-0516 - Slab Edge Termination Detail Drawing | ||
| PP014-0516 - Monolithic Pile Cap Terminations Detail Drawing | ||
| PP015-0516 - Pile Caps Detail Drawing |
Products
- Product Name
- Description
- Key Benefits
- Applications Type
GCP Applied Technologies (“GCP”) PREPRUFE® 800PA is a cold-applied, self-adhesive waterproofing membrane, composed of a cross-laminated HDPE film, and a synthetic non-bituminous adhesive. PREPRUFE® 800PA incorporates the PREPRUFE® Advanced Bond Technology™.
- Non-bituminous
- Adhesion
- Productivity
- Fully bonded
- Basement walls of all basement grades to BS 8102: 2009
- Below-ground car parks
- Underground RC reservoirs and tanks Industrial plants
- Radon, methane and carbon dioxide gas protection
- Protection from water, damp and gas of critical substructures
PREPRUFE® 300R Plus & 160R Plus membranes are the latest generation of PREPRUFE® membranes with the unique PREPRUFE® ZipLap™ seam.
- Fast, simple and secure
- Advanced Bond Technology reduces risk
- Preprufe ZipLap dual adhesive watertight laps
- Reduces cost and saves time
- Water and vapour proofing for all basement grades to BS 8102:2009
- Waterproofing civil engineering sub-structures
- Methane, carbon dioxide and radon gas protection
PREPRUFE® SC1 primer is a green coloured, non-bituminous, solvent based primer, which provides superior adhesion of PREPRUFE® 800PA non-bituminous adhesive membrane to a wide variety of substrates.
- Quick drying - fast membrane application.
- Damp and green concrete tolerant.
- Active formulation for enhanced membrane adhesion.
- Compatible with Preprufe 800 PA membrane
PREPRUFE® Tape and PREPRUFE® CJ Tape are specially formulated two sided, reinforced pressure-sensitive tapes.
- Detail areas including end laps, penetrations and repairs to PREPRUFE® waterproofing systems
- Construction joints
Accessories
- Accessory Name
- Description
- Key Benefits
- Applications Type
PREPRUFE® SC1 primer is a green coloured, non-bituminous, solvent based primer, which provides superior adhesion of PREPRUFE® 800PA non-bituminous adhesive membrane to a wide variety of substrates.
- Quick drying - fast membrane application.
- Damp and green concrete tolerant.
- Active formulation for enhanced membrane adhesion.
- Compatible with Preprufe 800 PA membrane
PREPRUFE® Tape and PREPRUFE® CJ Tape are specially formulated two sided, reinforced pressure-sensitive tapes.
- Detail areas including end laps, penetrations and repairs to PREPRUFE® waterproofing systems
- Construction joints
Protect your building with a three-layer membrane
Comprised of a robust HDPE film, pressure sensitive adhesive and protective coating, the PREPRUFE® system forms a robust, permanent and aggressive adhesive bond with any concrete slab. The PREPRUFE® waterproofing system products are specifically designed to perform in critical applications and incorporate Advanced Bond Technology™ to ensure fully adhered and long lasting product performance. This technology allows the PREPRUFE® system to form a continuous unbroken seal with the concrete for the design life of the project.
A proven, reliable waterproofing solution for critical applications
The PREPRUFE® waterproofing Advanced Bond Technology™ creates a continuous, integral and permanent adhesive bond to concrete. This seal prevents the lateral migration of water into and around the structure and provides performance for the lifetime of the structure. In the case of a breach or installation error, this fully-bonded membrane ensures that water under hydrostatic pressure is unable to migrate between the membrane and concrete, therefore limiting the risk of catastrophic waterproofing failure. Independent testing and a 25+ year track record has proven that the PREPRUFE® membrane can resist lateral water migration at extremely high pressure – 70+ meters of hydrostatic head pressure. For this reason, the PREPRUFE® systems are globally proven in the world's most critical applications.
Contractor friendly, straightforward installation to ensure performance and accelerate project schedules
Many systems in the market today require the use of welding or mechanically fastened laps. These installation requirements require a skilled installer, introduce risk to the installation and take time, effort and expertise. These methods requires a large crew and specialised equipment in addition to creating the potential for dangerous and unpleasant site conditions such as odour. In addition to the logistical challenges, these processes tend to be finicky— common jobsite challenges such as dust and moisture can easily result in incorrectly completed laps and details, both of which may result in expensive and costly long-term consequences.
By contrast, the PREPRUFE® Plus membrane can be applied with a minimal crew and requires no special equipment for installation. Installation is simple: a "kick-out" design allows workers to unroll a sheet in seconds. A dual adhesive ZipLap™ seam allows sheets to bond to one another easily, and the adhesive is designed to resist common nuisance conditions onsite - dust, debris and moisture.
World-quality waterproofing
With applications on mega projects such as the Alaskan Viaduct, the largest bored tunnel on Earth, the PREPRUFE® system has been proven the world over in critical applications. Over the last 25 years, builders have installed more than 650 million square feet (over 60 million m2) of the PREPRUFE® membrane in below-grade applications—there’s hardly a more trusted brand in waterproofing. For more information on how the PREPRUFE® system can benefit your project, contact GCP today.
Preprufe® Solved $4 Billion Transport Infrastructure Challenges
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PREPRUFE® Utilised in the Milan Metropolitan Underground Construction Project
