£27.99
In stock
9999 in stock
Help protect brickwork, blockwork and masonry against rising damp and ground moisture with this 450mm Wide Damp Proof Course (DPC), supplied as a convenient pack of 2 x 30 metre rolls.
Designed for installation within masonry walls, this durable waterproof DPC creates a continuous moisture barrier that helps prevent water travelling upwards through bricks, blocks and mortar.
With a generous 450mm width, this damp proof course is particularly useful for wider wall constructions, foundation details and building applications where standard narrow DPC rolls do not provide sufficient coverage.
A correctly installed Damp Proof Course plays an important role in protecting buildings against rising moisture.
Installed horizontally within brick or block masonry, the DPC creates a waterproof barrier designed to interrupt the movement of ground moisture through porous building materials.
For customers searching for 450mm damp proof course, wide DPC roll, 30m damp proof course, or DPC membrane for brick and block walls, this 2-roll pack provides a practical solution for domestic and trade construction projects.
Rising damp occurs when moisture from the ground travels upwards through porous construction materials such as bricks, blocks and mortar.
Without an effective damp-proof barrier, this moisture can eventually reach internal walls and finishes, potentially causing visible damp and long-term building damage.
Installing a suitable DPC within the masonry helps interrupt this moisture movement.
A correctly installed damp proof course can help reduce the risk of:
At 450mm wide, this DPC provides considerably greater coverage than standard narrow wall damp proof course rolls.
The additional width makes it particularly useful for:
The wide format can also be cut where required to suit specific construction details.
Each pack contains 2 individual DPC rolls, with each roll measuring 450mm wide x 30m long.
This provides a total of 60 linear metres of damp proof course per pack.
The twin-roll pack is ideal for:
Having two rolls available also provides additional material for overlaps, corners and detailing.
The DPC features a serrated diamond-cut texture on both the top and bottom surfaces.
This textured finish is designed to improve grip within the mortar bed and help prevent the damp proof course from slipping while bricks or blocks are positioned during construction.
The textured surface helps provide:
This is a useful advantage compared with completely smooth polythene sheeting.
This damp proof course is designed for horizontal anti-damp isolation in brick and block masonry.
It can be incorporated into a wide variety of wall constructions to create a continuous barrier against rising ground moisture.
Typical applications include:
A DPC needs to provide long-term waterproofing while remaining flexible enough for straightforward installation.
This damp proof course combines both qualities.
Its flexible construction allows the material to be easily:
while providing the durability required for permanent incorporation within masonry.
Mortar, concrete and other cement-based building materials are alkaline.
Because damp proof course remains permanently in contact with masonry materials, good resistance to alkaline conditions is important.
This DPC is specified as alkali resistant, helping provide dependable long-term performance within wall construction.
The membrane has a specified watertightness greater than 2kPa, providing an effective barrier against moisture when installed correctly.
Maintaining a continuous DPC is essential.
Particular care should be taken around:
to ensure there are no unnecessary gaps through which moisture could bypass the barrier.
This damp proof course is specified as resistant to low temperatures down to approximately -25°C.
This helps the material retain flexibility during cold-weather storage and installation conditions.
The 450mm Wide Damp Proof Course is suitable for a wide variety of construction projects, including:
Correct installation is essential for effective damp protection.
When fitting:
Maintaining a continuous barrier is important because breaks or gaps can allow moisture to bypass the damp proof course.
A Damp Proof Course (DPC) and a Damp Proof Membrane (DPM) both protect buildings against moisture, but they are generally used in different parts of the structure.
A DPC is normally installed within walls and masonry to prevent moisture travelling upwards through brickwork or blockwork.
A DPM is usually supplied as a large sheet and installed beneath floors and concrete slabs.
In many construction projects, the two systems are connected to create a continuous damp-proof barrier.
Where a building also incorporates a floor damp proof membrane, the wall DPC and floor DPM may need to be correctly linked together.
Maintaining continuity between these two systems helps prevent moisture finding a path around the damp-proof barrier.
Always follow the relevant construction specification for the project.
The 450mm DPC is suitable for both new construction and appropriate refurbishment work.
It is particularly useful when:
Choose Damp Proof Course 450mm Wide x 30m – Pack of 2 Rolls for a durable, flexible and wide waterproof barrier designed to help protect brickwork, blockwork and masonry against rising damp and ground moisture.
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