How to choose the best render for your home

Modern and stylish, render is one of the most versatile cladding solutions on the market, and there are many different reasons why you may want to add it to your home. From weather proofing and damp resistance, to improving thermal performance and boosting kerb appeal.

While from the outside render can seem fairly complex, it’s a lot easier to understand than you may think. With it being a specialist trade, there tends to be a lot of jargon involved which may leave you unsure about what kind of render is best to meet your specific needs and planning requirements.

In this comprehensive guide from leading Italian render manufacturer Fassa Bortolo, you’ll learn how to distinguish the key differences and discover what you need to know before choosing your render system.

Are there any good all-rounder renders?

Most people considering house rendering will be after a reliable, easy-to-apply render that can be used on a multitude of surfaces — but where to start?

While there are many different types of render, those that contain silicone and acrylic are usually a good option as they are less likely to crack and offer better weather-resistance than many basic cement renders.

Consisting of two parts, a substrate compatible base coat that binds the materials, and a hard-wearing top coat, Fassarend is attractive and highly resistant to weathering. It is even possible to apply to a timber frame home, using a render carrier board such as Fassa Externa Light, which is then fixed to timber batons.

The finishing render can contain materials such as silicone or acrylic which varies depending on the location and look of the build, as well as the amount of resistance needed to protect the building against the weather and other elements. These additives contribute to the weather-resistant properties and require less maintenance, allowing walls to look better for longer.

Which render also offers insulation?

If you live in a property where there is no cavity wall insulation and no chance of adding it in (as is often the case in houses with solid walls, for example) it is useful to consider external wall insulation (EWI) systems.

One popular EWI system is Fassatherm. Its main function is to keep a building warm, saving energy and reducing the risk of damp through condensation. Made up of an insulation board base, reinforcing mesh coats and a finishing render, the insulation usually comes in the form of mineral wool or expanded polystyrene (EPS). Different thicknesses of insulation can be used to meet any U-value (energy retaining) requirements.

The Fassatherm system can be fixed to many different substrates, including timber, masonry and SFS (Steel frame solution) which makes it an incredibly versatile option. Choosing the correct build up is a decision made during the design process, and your applicator should be able to advise on the more technical specifics, including insulation and finish thickness.

Which is the best render for renovation projects?

If you are renovating an older property a breathable finish is essential for the house to work as it was originally intended and to avoid problems with damp occurring. 

Lime plaster is often chosen but can be a little harder to apply than regular Portland cement. Thankfully there are a few alternatives on the market. 

Ideal for renovating listed and heritage buildings, Fassalime’s restoration line, Ex Novo, will transform both interiors and external facades. Ex Novo has a breathable finish, making it the ultimate choice for renovation projects where damp has been an issue. With its permeable properties, moisture is able to pass through the walls and as a result, it helps to eliminate damp spots and creates a living space with fresher, cleaner air.

Are coloured renders easy to apply?

If you are looking to give your home a makeover or ensure it's kerb appeal is up to scratch, you might like to consider a monocouche (or single layer) render. 

One product worth a look is Fassacouche. Available in a range of colours, Fassacouche ticks all the boxes with a simple, one-coat solution. A standard monocouche render, it is generally applied to masonry substrates. Very popular for easily creating an attractive aesthetic, thanks to its fuss free application, Fassacouche is very easy to work with. Choose from a variety of finishes for added texture, including scratched, floated or smooth.

Who are Fassa Bortolo?

Built on 313 years of solid foundations, Fassa Bortolo is the industry expert in renders and integrated render systems. Proud of its longstanding Italian heritage, the company prides itself on its unrivalled product quality, innovative state-of-the-art research facilities and dedicated commitment to ethical quarrying.

Fassa Bortolo boast an expansive spectrum of colours, with the Fassalime, Fassarend and Fassatherm systems offering 365 unique colour combinations as standard. With investment in the latest technology, Fassa are able to pair existing shades with colour tinting machines to unlock unlimited potential, matching any colour, including RAL.

Head to the Fassa website or call 01684 218305 to enquire about approved applicators in your area. These tradespeople attend regular training days to ensure correct application and the very best knowledge of ever changing regulations and requirements.