Pebbledashing

Pebbledashing is an old and established trade that was prevelant in Scotland in the 17th century, it was not known as pebbledashing but as 'Harlin'. Pebbledashing examples can be seen on this page.
This property was stripped back of all defective render and backing coat.
The original dash and render dated back to the 1930s so it had proved itself in regards to durability.
The house was coated with a special polymer render and a dash receiver with a colour matched backing coat. The aggregate used was Beige Quartz


              
              

Although not a listed building this fine period property is in an area of outstanding beauty, as such planning had to be approved before any exterior works could commence.
Due to the solid wall construction and high level of damp a slaked haired lime render was specified.
The use of crushed white marble aggregate chippings cast into the final “butter coat” has provided the house with an antique white finish in keeping with the period of the property
Although we now have some good modern OPC renders they have yet to prove themselves, however dashing of this type goes back centuries, applied correctly such as the BRose method, it will last in excess of 100 years.

Requiring no painting, Dashing or ‘Harlin’ as it is known is Scotland, is extremely hard wearing and truly breathable.

Please do not associate traditional pebbledash with the effect used on pre-cast garages etc. We have some beautiful aggregates including, crushed marbles, black basalt shell, buff, quartz etc see our suppliers http://www.derbyshireaggregates.com


           

           

           

   

Once the property was brought back to a good base, it was prepared to receive an application of crushed quartz aggregate and further embellished with natural stone corner quoins

Pebbledashing as we know it today was referred to many years ago as 'Roughcast' which according to the Encyclopedia Brittanica 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. The idea is to maintain an even spread, free from lumps, ridges or runs and without missing any background.

According to the Encyclopædia Britannica Eleventh Edition (1910–1911), roughcast used to be a widespread exterior coating given to the walls of common dwellings and outbuildings, but it is now frequently employed for decorative effect on country houses, especially those built using timber framing (half timber). Variety can be obtained on the surface of the wall by small pebbles of different colors, and in the Tudor period fragments of glass were sometimes embedded.

Also according to the Encyclopædia Britannica Eleventh Edition, the central tower of St Albans Cathedral, built with Roman tiles from Verulamium, was covered with roughcast believed to be as old as the building. The roughcast was removed about 1870.

Pebble-dashing is a type of roughcasting where the surface coating is of small stones, chips of stones or gravel that are thrown at a coat of wet plaster while it is still 'soft'.

Roughcasting incorporates the stones in the mix while pebbledashing adds them on top.