Roofing throughout Scotland

Our roughcasting service covers Scotland

Roughcast is the first line of protection against the elements. It is an exterior coating on the outside walls of a house, sometimes referred to as pebble dash or render.

Roughcasting Scotland image from the original Heritage Roofing site

Two systems, clearly explained.

The source describes both traditional render systems and modern render systems. The details below preserve that distinction so visitors can understand the route before making contact.

Traditional render systems

Traditional methods of roughcast are a sand and cement mixture, mixed in a cement mixer, and applied by hand with a trowel using two coats or layers.

The first coat, 8mm - 10mm thick, is commonly known as the scratch coat. Once applied to the wall evenly, it is scratched with a tool to leave lines on the surface to which the second coat will adhere.

The second coat or top coat, also 8mm - 10mm thick, is then applied by hand, as evenly as possible, and the chips or shells are cast on, adhering to the top coat.

Colour choice can be quite limited. Colour is added by using coloured sand on top of either white or grey cement. This results in the choice of grey, cream, brown or white.

Modern render systems

Modern render systems are more lightweight. These can be applied by hand with a trowel again, or by a machine using a spray. These are more UV stable, with better U values for insulation.

Unlike the old system, the manufacturer colours the material, so only water is required for this system.

Colour choice is vast with this system. You can choose from around 50 different colours. Any patching or repairs needed for accidental damage down the line can be done with a better colour match because this system is more UV stable.

This system is far better than the traditional method when being applied as an overcast, on top of existing roughcast that is not or cannot be removed.

A material surface, not a generic service tile.

Use the published roughcasting information as the starting point for a conversation about the relevant system and the property.

Roughcasting Scotland source image

Discuss a roughcasting survey or quotation.