Users' questions

Is rendering the same as Pebble Dash?

Is rendering the same as Pebble Dash?

But first, we have to define exactly what pebbledash is. It differs slightly from roughcast render, which we could call its cousin. Instead of the pebbles being thrown into the render, roughcast render is formed when the pebbles are already incorporated into the mix of lime, cement, sand and water that we call mortar.

Can you render straight onto pebbledash?

Technically speaking, you can render over the top of pebble dash as long as it isn’t damaged. However, there are a number of reasons why this isn’t recommended: It could add unnecessary stress to the walls. If the backing render coats are not solid, they could fail.

How much does rendering Pebble Dash cost?

Pebble dashing will cost roughly between £2,000-£3,000 depending on the size of your home. For example, the pebble dash price for a 2-bedroom terraced house will cost around £2,100-£4,800 whereas the cost to pebble dash a 4-bedroom detached house will cost around £2,700-£9,200.

Are there any problems with rendering over pebble dash?

Rendering over existing pebble dash can present problems. If the backing render coats are not solid and they fail, then whatever is applied to it will also come away. Also if the pebbledash has been painted a good key may not be possible. Cracks can form in the old pebble dash layer and appear through the new finish.

What kind of render is used for pebble?

Nowadays advances in render technology have allowed for renders that are made specifically for pebble dashing. They are known as dash receivers. Usually, polymer-based they can be coloured to match the aggregate, i.e. white coloured dash render for a white dolomite pebble.

What do you use to make pebble dash?

Roughcast or pebble-dash is a coarse plaster surface used on outside walls that consists of lime and sometimes cement mixed with sand, small gravel, and often pebbles or shells. The materials are mixed into a slurry and are then thrown at the working surface with a trowel or scoop.

How do you use dry dash for render?

Into this coat (whilst it’s still wet) is thrown the dry dash or aggregate. Some trades then tamper and press the aggregate into the render with a steel float to reduce shedding (common in Spain). A roughcast or harling finish is achieved by mixing the aggregate into the actual render mix and throwing it or “casting” the mixture onto the wall.