Our Product of Choice - RENOTEC

QES Exteriors are approved installers of RENOTEC roof coatings in South Wales. RENOTEC is scientifically developed by specialised engineers who have more than 30 years of experience in developing high quality protective coatings for the roofing industry. It has the ability to seal your roof and revitalise the appearance of tired roof tiles by giving them a fresh burst of colour.

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QES Exteriors Bring You The Future Of Roof Coatings

if your roof is looking a little past it’s best before you consider spending money on expensive roofing services, consider using QES Exteriors to restore your roof to almost new, at a fraction of the cost!

Let us clean, protect and restore your roof and make it look like new again. We will remove all your unsightly moss and debris that makes your roof look old, dirty and tired. 

Once your roof has been cleaned we will then process to apply our state of the art RENOTEC roof coating system. See below for more information.

renotec roof coating south wales

RENOTEC® ROOF COATING is scientifically developed by specialised engineers, which have more than 30 years of experience in developing high quality protective coatings for the roofing industry. Treatments with RENOTEC® will extend the lifetime of roof tiles and minimize further surface erosion. It has been developed to transform roofs from dirty and unattractive to clean and shiny.

Our Process

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What are RENOTEC Roof Coatings ?

As well as a brand new look, RENOTEC roof coatings offer a protective insulation to protect your roof from the harsh Welsh weather. Given the weather in South Wales, it’s no surprise that roof coatings are a popular option for many homeowners in the country. QES Exteriors has installed dozens of roof coatings in cities and towns all over south Wales including Swansea, Cardiff, Bridgend, Carmarthen & Llanelli.

Key Features


  •   Improves the appearance of the roof
  •   Repels water and stops ingress in to the tiles
  •   Extends the life span of the roof tiles
  •   Could help to increase the property value
  •   Rebuilds the original surface protection
  •   Fast installation
  •   Great savings – a much cheaper alternative to re-roofing
  •   Real alternative to costly total roof replacement
Renotec Roof coatings application south wales
before and after renotec

Super Hydrophobic

A surface is considered super hydrophobic if a water droplet beads up (with a contact angle greater than 140⁰ and the droplets can slide aware from the surface readily (it has a small contact angle hysteresis). Super hydrophobic surfaces repel water, causing it to form beads because it is more attracted to itself than the surface. This means water will run off the surface making it extremely difficult to wet.

This is known as the ‘lotus effect’ due to its similarity to the lotus leaf but is also seen on duck feathers and butterfly wings.

Roofs coated with RENOTEC will respond in the same way – water will form droplets and won’t penetrate the tiles. Independent testing has shown that it reduces water absorption by 96.3% and meets the British standard for water vapour resistance BS EN ISO 7783:2011.

Fully Breathable

RENOTEC does not restrict the ability of the building to breathe. Water vapour permeability testing was conducted in accordance with BS EN ISO 7783:2011 and it demonstrated that the coating had little effect on the water vapour diffusion of the tiles.

Application of RENOTEC roof coatings protects a roofs tiless by keeping them dry whilst allowing air and moisture to escape. It maintains the important capability of a building to breathe.

Our Customer Reviews Speak For Themselves

Head over to our trust a trader page to see verified reviews from our many happy customers across south Wales. 

Get in Touch - 01639 874 189

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