Can bitumen be used for damp proofing?
EVERBUILD® BLACK JACK® 908 D.P.M. is an odourless rubber enriched bitumen emulsion which provides a highly effective sandwich damp proof membrane for floors. Also acts as a waterproofer for walls, above ground structures and foundations.
Which bitumen is used for DPC?
a) Bitumen Mastic (Mastic Asphalt) Due to this consistency it can be spread (when hot) to a depth of 2.5cm to 5cm, which sets on cooling. It provides good impervious layer but special care is needed in its laying.
What is bituminous felt damp proof course?
Damp Proof Course (DPC) is a layer of waterproof material, that is applied in to the walls of a building, near the ground. This is used to prevent any rising damp, preventing mould and fungal residue, and reducing the risk of damage to the building.
Which material is best for damp proof course?
Materials widely used for damp proofing include:
- Flexible materials like butyl rubber, hot bitumen (asphalt), plastic sheets, bituminous felts, sheets of lead, copper, etc.
- Semi-rigid materials like mastic asphalt.
Does bitumen stick to concrete?
Where can you use bitumen paint? You’ll find bitumen paints used in all sorts of situations. A versatile paint, it can be used on both ferrous and non-ferrous metals as well as concrete, wood and masonry.
What are the 3 types of DPC?
The following are different types of DPC and their thickness used in construction,
- Damp Proof Course Injection.
- Mortar Injection Damp Proof Course.
- Electro Osmotic Damp Proof Course.
- Damp Proof Membrane Course.
- Membrane Damp Proofing.
- Internal Damp Proofing.
- Surface Treatment.
- Cavity Wall Construction.
How do you install a DPC membrane?
How do I install a Damp Proof Membrane?
- Cut the damp proofing membrane to size.
- Place the damp proofing membrane on the wall.
- Neatly fold the damp proofing membrane around the corners.
- Drill then fix the damp proofing membrane to the walls ensuring a tight fit.
- Apply wall finish to the damp proofing membrane.
How do you damp proof an existing concrete floor?
When faced with damp in concrete floors, there are two options available:
- Dig up the old concrete floor, install a new damp proof membrane and lap up edges before replacing the concrete slab.
- Fully isolate the dampness in the floor using a surface Damp Proof Membrane (DPM)
Does bitumen paint crack?
Bitumen used as paint isn’t prone to peeling off, and it sticks the surface of the substrate together. It lasts extremely well out of the sun, and well in the sun when on a firm porous surface such as masonry. When it has no hard immovable substrate under it it tends to crack & split over time.
What is the minimum thickness of DPC?
The DPC should be of 40mm thickness and should be of uniform thickness. It should not be provided at the locations of the door openings. The top level of DPC should match with the planned finished floor level.
Does DPM go under DPC?
Whilst we are on the subject, it is normal that the DPM overlaps with the DPC (Damp Proof Course). The DPC is normally laid within the bed joint of the brickwork or blockwork, primarily to stop ground damp from rising up the walls by capillary attraction.
How high should DPC be above ground?
150 mm
A damp-proof course is a barrier, usually formed by a membrane built into the walls of a property, typically 150 mm above ground level, to prevent damp rising through the walls.