Check local branch stock
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Damp Proof Course (DPC) Roll Polythene 100mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
Cromar Breather Membrane Roll Classic Lightweight (115G) 1 x 50m
Vent 3 classic is for warm and cold roof applications, it has no additional ventilation and has excellent nail tear strength. It is UV stable for 3 months and is clean and easy to use, weighing 135 gsm. Please note: Timber and stone are natural... -
Damp Proof Membrane 300mu Black 4m x 25m
Standard Damp Proof Membrane, BBA Approved. This is a plastic sheet used to prevent dampness from occurring through capillary action. DPM is a flexible and dependable option for protecting buildings against any moisture incursion. Long-lasting and simple... -
Damp Proof Membrane 250mu Black 4m x 25m
Standard Damp Proof Membrane, BBA Approved. This is a plastic sheet used to prevent dampness from occurring through capillary action. DPM is a flexible and dependable option for protecting buildings against any moisture incursion. Long-lasting and simple... -
Damp Proof Course (DPC) Roll Polythene 300mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
Damp Proof Course (DPC) Roll Polythene 150mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
ClassicBond EPDM Membrane 1.2mm 4.57 x 1m
This ClassicBond EPDM membrane is designed as an effective and long-lasting solution for your rubber roofing needs. Known for its reliability, this roofing solution can last for fifty years or more. Its high-quality EPDM will not crack, blister, or peel,... -
Cromar Breather Membrane Roll High Performance (135G) 1.5 x 50m
Vent 3 is for warm and cold roof applications, it has no additional ventilation and has excellent nail tear strength. It is UV stable for 3 months and is clean and easy to use, weighing 135 gsm. Please note: Timber and stone are natural materials, and as... -
Eco TPS General Purpose 4m x 25m
Eco TPS General Purpose Sheeting is 4m wide and 25m long. It is suitable for use in a wide variety of situations to protect the surface from the elements of dirt and debris. TPS is a heavy-duty polyethene sheet that can also be used for the protection of... -
Damp Proof Course (DPC) Roll Polythene 450mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
Permavent Leto Breathable Membrane (145gsm) 1 x 50m
The Permavent LETO 145gsm Breathable Membrane is a lightweight, air- and vapour-permeable underlay designed for pitched roofs and walling applications. Manufactured by Permavent, this membrane helps control condensation by allowing moisture vapour to... -
ClassicBond EPDM Membrane 1.2mm 3.05 x 1m
This ClassicBond EPDM membrane is designed as an effective and long-lasting solution for your rubber roofing needs. Known for its reliability, this roofing solution can last for fifty years or more. Its high-quality EPDM will not crack, blister, or peel,... -
ClassicBond EPDM Membrane 1.2mm 6.10 x 1m
This ClassicBond EPDM membrane is designed as an effective and long-lasting solution for your rubber roofing needs. Known for its reliability, this roofing solution can last for fifty years or more. Its high-quality EPDM will not crack, blister, or peel,... -
Damp Proof Course (DPC) Roll Polythene 225mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
Cromar Breather Membrane Roll Classic Lightweight (115G) 1.5 x 50m
Vent 3 classic is for warm and cold roof applications, it has no additional ventilation and has excellent nail tear strength. It is UV stable for 3 months and is clean and easy to use, weighing 135 gsm. Please note: Timber and stone are natural... -
Damp Proof Course (DPC) Roll Polythene 600mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
Cromar Breather Membrane Roll High Performance (135G) 1 x 50m
Vent 3 is for warm and cold roof applications, it has no additional ventilation and has excellent nail tear strength. It is UV stable for 3 months and is clean and easy to use, weighing 135 gsm. Please note: Timber and stone are natural materials, and as... -
Visqueen Vapour Barrier Green Tint 125mu 50m x 2.45m
Vapour Check is used to omit the risk of interstitial condensation within a structure as well as improving the airtightness of the building. Vapour Check restricts the passage of warm, moist air from within the building from permeating into the structure... -
Permavent Leto Breathable Membrane (125gsm) 1 x 50m
Permavent LETO 125 Breather Membrane is a lightweight, air- and vapour-permeable membrane designed for use as a roofing underlay in pitched roofs. Manufactured by Permavent, this breathable membrane allows moisture vapour to escape from the roof... -
Damp Proof Course (DPC) Roll Polythene 112.5mm x 30m
Polythene Damp Proof Course comes in a 30m roll and is available in a range of widths allowing you to get the job done. It is suitable for preventing walls made from brick, stone and concrete in either a domestic or an industrial environment, from rising... -
Clay Cavity Liner 215 x 140 x 200mm
Cavity Liners are used in conjunction with airbricks, to bridge the depth of the wall where necessary. Maintains airflow and prevents condensation build-up with in the redundant flue. Please note: Timber and stone are natural materials, and as such,... -
Permavent Apex Air Vapour Permeable Membrane (Untaped) 1 x 50m
Permavent APEX is a three-layer air open and vapour permeable membrane designed for pitched roofing and walling applications. It provides effective condensation control by allowing air and moisture vapour to escape while acting as a secondary barrier... -
Permavent Leto Breathable Membrane (175 gsm) 1 x 50m
Permavent LETO 175 Breather Membrane is a breathable roofing underlay designed for pitched roof applications. Manufactured by Permavent, this membrane allows air and moisture vapour to pass through while providing a secondary barrier against wind and... -
Permavent Apex Air Vapour Permeable Membrane (Untaped) 1.5 x 50m
Permavent APEX is a three-layer air open and vapour permeable membrane designed for pitched roofing and walling applications. It provides effective condensation control by allowing air and moisture vapour to escape while acting as a secondary barrier...
Damp Proofing
Damp proof products such as damp proof membrane and damp proof course are an integral part of many construction and landscaping projects.
What is damp proofing?
Damp proofing is a method of controlling moisture and preventing it from moving between walls and floors.
A damp proof course is designed to be waterproof and usually positioned close to the ground, within the wall, to prevent rising damp. It is a must when building property foundations. The damp proof course will help prevent moisture from rising through the structure, protecting it from damp and helping to prolong its lifespan. A good damp course will prevent the need to repair any excessive damage that damp could cause.
At Howarth Timber & Building Supplies, we offer several types of Damp Proofing, including:
Plastic DPC
Plastic Damp Proof Course has high compressive strength and a long life expectancy. Its purpose is to act as a barrier to prevent damp spreading.
High-Performance DPC
High-Performance Damp Proof Course is thinner than traditional damp-proof courses, however, this doesn’t compromise on performance. This type of DPC can also offer fire resistance.
Insulated DPC
Insulated Damp Proof Course minimises cold bridges (sometimes referred to as thermal bridges) that can occur when there is a gap in insulation.
Ventilation
Ventilation is a crucial part of any home, as allowing air to move freely helps to prevent moisture build up and therefore damp. Ventilation helps homes with existing damp problems caused by large amounts of condensation, including shower areas. Air bricks are a good option for ventilating areas between cavity walls and suspended floors.
Expansion Joints
Expansion Joints are installed between brickwork and blocks and designed to handle movement such as from heat related expansion and contraction of building materials. The Expansion Joints purpose is to stop moisture from penetrating the building, preventing the creation and spread of damp.
Remedial Solutions
Remedial Solutions are products applied to surfaces including walls, floors, and ceilings to remedy existing damp problems such as those caused by condensation.
For expert advice and guidance on the best damp proofing for your property, please contact your friendly local Howarth branch.
How to Guides
How to Prevent Condensation on Windows
Learn how to stop condensation on windows with simple, effective methods. From adjusting indoor humidity to improving airflow, find out how to keep your windows clear and protect your home from moisture damage.