Can a patio be higher than damp course?

Can a patio be higher than damp course?

Yes – you need a gap between the edge of the patio and the house. Since water will get into it you need to make sure it can drain away properly, not fill up. You could consider making a feature of it by partially filling it with crushed glass over an LED ropelight.

Does a patio need a DPM?

In the vast majority of light-use constructions (patios, driveways, footpaths, etc) there is absolutely no need for a membrane to be placed between sub-base and the bedding layer: it achieves almost nothing, as a well-selected sub-base material will have what we call a ‘tight’ or ‘close’ finish, that is, there will be …

Can I do my own damp proofing?

DIY damp proofing kit has sufficient DPC cream to provide a new chemical damp proof course to 30m of single leaf wall (allow 15m for 9″ or cavity walls). Inject sufficient cream to fill the hole to within 1cm of wall surface and leave it to diffuse through the wall and cure to form a chemical damp proof course.

Is it OK to block air bricks?

If the air bricks are blocked or closed this will reduce the ventilation and the risk of serious rot and damp will be increased. Air bricks should never be blocked or closed and it is recommended that all air bricks are inspected and cleaned on an annual basis.

What happens if you cover an air brick?

How do you fix rising damp in an old house?

Treatments for rising damp include:

1. A chemical DPC injection.
2. Replacement of rotting joists or internal flooring which has come into contact with damp.
3. Removing and replacing damaged interior plaster.
4. Bridged DPC – requiring the removal of bridging materials or soil to enable a minimum of 150mm clearance below the DPC.

How tall does a patio need to be below damp proof?

The finished slab/patio height needs to be 150mm or x2 bricks below the damp proof course, and the patio needs to fall away from the property for water to drain.

How is damp proofing used in brick construction?

For the rest of the project, new and better quality bricks will be arranged. Damp Proofing, as the name indicates, makes sure that the moisture doesn’t seep up into the walls. It’s very interesting phenomenon where moisture from the ground moves up into the walls, brick by brick, and it won’t stop until all the linked walls are soaking wet.

What kind of material is used in damp proof courses?

It is usually abbreviated to ‘DPC’, and in most buildings less than 30 years old, it consists of a DPM, which is a Damp Proof Membrane, an impermeable layer of material, most often a polyethylene or bitumen-polymer, that is laid in the bedding joint between two courses of bricks.

What’s the relationship between damp proof and paving?

A look at the relationship between paving and damp proof courses (DPC), and suggestions for dealing with problems such as high paving levels or low DPCs. All modern buildings have what is known as a Damp Proof Course.