Silicone rendering may be a possible solution for: property owners who have to unnecessarily spend large amounts of their income on heating due to dampness being present within the structure of the property If you live in a house where damp is a problem property owners who are unable to insert insulation into the cavity walls. Note...Read More

The question of how long a rendering lasts is a complex question because there are so many factors  involved.  Often, the questions relating to how long rendering lasts often fail to take into account the many problems associated with certain types of rendering and some of the benefits of others. We will start with the...Read More

Renders come in many different types and some of the more recent acrylic and other modern renders are manufactured. For someone who wants to know how to make a render, they will find themselves bewildered and overwhelmed  by the large amount of articles and websites containing information about the cement mortar and lime renderings. It...Read More

All cement renders irrespective of how they are formulated will eventually develop surface cracks due to the nature of cement curing and hardening. Sand and Cement renders are highly alkaline, rigid and brittle surfaces that develop surface cracks through cement shrinkage and thermal expansion & contraction from daily temperature fluctuation. Sand and Cement Render is...Read More

Everything needs a change on regular intervals or else it becomes very ordinary and loses the ability to catch the person’s attention, whether it’s living or non-living. As we clean our residential or commercial property and decorate it with beautiful accessories, we must take proper attention towards the outer area also because the exterior appearance...Read More

Ashlar detailing provides an aesthetically pleasing effect within the render finish and is achieved by cutting recessed joints into the “green render” using simple tooling. The effects can be quite stunning but good execution by the applicator is paramount and Parex will offer training and advice when this is required. There are some basic rules with regard to Ashlar cutting that should be observed. These are regarded as...Read More

Lime bloom is the most common form of efflorescence ( formation of a salt crystal crust or covering through a chemical change) on cement based renders. It is caused by the migration of lime water molecules (Ca(OH)2) to the surface of the damp external render because of diffusion i.e. the surface of the damp external render contains a high...Read More

The P13 from Putzmeister is a mixing, pumping and spraying machine with a positive mixer, pump and compressor. Ideal for bonding mortar, thin layer plasters, refractory mortar etc. It is the right machine for building preservationists, stucco plasterers, refurbishing companies, but also for painters. Suitable for: materials up to 3 mm grain, e.g. anti-noise compound, levelling...Read More

Understanding the nature of the substrate (the wall to be rendered) is critical to the success of any rendering job. The key properties of the substrate are: strength Water absorption or ‘Suction’ In general, stronger substrates will require stronger render mixes. Whilst a degree of suction is required to enable the scratchcoat to bond to the substrate, excessive suction (e.g. in aerated concrete...Read More

Hemp-lime is a natural material consisting of hemp mixed in with mortar to produce light weight insulating mortars. It has a density of between 110 and 150 kg. per m3. The strands are between 5 and 25mm long. Originally developed in France to repair historic properties to replace deteriorating wattle and daub (a Lime, mud, horse hair and...Read More