Roughcast Colours in Scotland

yellow sun flowers in front of white wallpaper

Companies specialising in roughcast colours in Scotland have been providing a wide range of products and services in the paint, plaster, and wallpaper sector. They provide solutions for the most demanding of projects, delivering a superior finish and outstanding value for money. Their products are suitable for use in residential and commercial properties across the country.

white wallpaper roughcast

Tudor 80/20 Render

Roughcasting is the name of the game for exterior walls. The cost is relatively low, the reward is the added insulation and aesthetic value. In addition, the company carries out the heavy lifting, leaving you to focus on the fun parts. There are numerous options to choose from. However, it’s important to understand that all companies are not created equal. Some are more professional than others, and some are just plain old scams. To avoid wasting your time and money, research a little prior to making a purchase. A few tips and tricks will help you narrow down the contenders and get the most for your money.

Luckily, there are several well-vetted firms to choose from. Castle Coatings (Scotland) Ltd is one such firm. The company is a family run business and focuses on quality over quantity. They are also a good source of information, if you have questions about the process. For instance, did you know that they have a mobile app for customers to check in on their progress?


The traditional method for finishing a masonry building is known as ‘harling’. It is a type of rough-cast wall finish, and is particularly prevalent in Scotland and the Scottish Borders. This form of weatherproofing has survived for centuries, on many historic buildings.

Traditional harling is an attractive weatherproofing coating for most types of masonry building. It promotes evaporation and reduces water ingress. As a result, harling has a protective effect against moisture and is ideal for buildings located in wet climates.

Harling is typically applied to walls in two coats. However, it is possible to use a single coat for certain areas. For these areas, the thickness of the harling coat should not exceed 10mm.

Before beginning the application, make sure the area is dry. A small amount of extra drying time is recommended. Once harling has been poured, it will cure chemically. Use a specially-shaped trowel to apply the material. Alternatively, you can press harling back against the wall with a timber float.

Pebble Dash

Pebble Dash is a gravel-like finish for exterior walls. It’s used on both the outside and inside of homes, mainly in Scotland. The first recorded use of pebble dash was in the 1920s.

Initially, it was applied to stone walls, but nowadays you can find it on almost any type of building. You can get it in a variety of colours. Some of the most common options include flint, limestone and marble.

Pebble dashing is a cheap way to protect your home from the elements. The process involves throwing small stones into wet mortar. In some instances, a notched trowel is used to create a grooved surface. This layer can be covered with more pebbles and lime mortar to achieve the desired effect.

In recent years, some people have begun to add aggregates to the mix. These can be mixed in with the new pebbles to give your wall a slightly different appearance.

There are several advantages to roughcasting. For starters, it can be more durable than trowelling. And it can provide a smoother, more uniform colour effect.

Adding aggregates

Roughcast colours in Scotland are used on exterior surfaces to provide a protective finish. They protect buildings against weather, as well as being an inexpensive and decorative solution. This type of render can be applied to both bricks and concrete. However, the process can be difficult, as some architectural details make it more difficult to apply.

Most roughcast finishes consist of 6mm or less diameter aggregates, such as sand and gravel. These materials are sourced from around the world, and are then mixed together to create a colour scheme. In recent years, adding aggregates to roughcast colours has become popular.

For a good, durable finish, the aggregates must be consistent in size and shape. If the mix is not uniform, the resulting render may be unstable during drying, which can cause sagging.

Many people in Scotland use the term “harling” to describe this finish. It is made up of gravel and cement. Harling comes in many different styles. The most common are lime harling and dry dash. Lime harling is usually applied in two coats.