100% Waterproof External Render System
What Is Silicone Rendering & How Is It Different From Other Render Systems?
Silicone rendering is one of the most advanced external render systems available today for protecting the outside walls of your home or commercial property. Unlike traditional render systems, silicone rendering uses silicone as its key ingredient — making it the only render system that is completely waterproof, not just water resistant.
But what exactly is silicone rendering and how does it compare to other external render systems? Let us explain.
What Is Silicone Rendering?
Silicone rendering is a coating that is applied to the outside walls of a property. It protects your walls from rain, damp, mould and cold weather. The silicone ingredient inside the render creates a completely waterproof barrier around your property — meaning water simply cannot get through.
On top of that, silicone render comes in a huge range of colours, so there is no need for painting ever again. The colour is already built into the render itself, giving your South Wales or Pontypridd property a fresh, clean and long lasting finish.
The Different Types Of Render Systems
There are several different types of render used on properties across South Wales and Pontypridd. Here is how they compare:
Silicone Render
The only completely waterproof render system available. Silicone render is flexible, breathable, self cleaning and comes in a wide range of colours. It is the best long term solution for any property in South Wales.
Sand & Cement Render
This is one of the oldest and most traditional external render systems. It is strong but it is not waterproof — only water resistant. Over time it can crack, allowing water and damp to get inside your walls.
Monocouche Render
Monocouche is a through coloured render which means like silicone render it does not need painting. However it is only water resistant, not waterproof. It can also crack over time in wet climates like South Wales and Pontypridd.
Pebble Dash Render
Pebble dash is a very old style of external render finish that was popular in the 1970s and 1980s. It is only water resistant and is very difficult to repair or update. Many homeowners in South Wales and Pontypridd are now replacing pebble dash with modern silicone render systems.
Acrylic Render
Acrylic render is a modern render but it is still only water resistant, not waterproof. It is less breathable than silicone render and can trap moisture inside your walls over time.
Why Silicone Render Is The Only Truly Waterproof External Render Finish
When it comes to protecting your property in South Wales and Pontypridd, not all external render finishes are created equal. There is one very important difference that every homeowner and commercial property owner needs to understand before choosing an exterior render finish for their property — and that is the difference between waterproof and water resistant.
Waterproof vs Water Resistant — What Is The Difference?
Water Resistant means the surface can slow down water from getting through — but it cannot stop it completely. Over time, especially in the wet climate of South Wales and Pontypridd, water will eventually find its way through a water resistant render finish and into your walls. This leads to damp, mould, and expensive repair bills.
Waterproof means water simply cannot get through — at all. A truly waterproof external render finish creates a permanent barrier against rain, moisture and damp. No matter how heavy the rainfall in South Wales and Pontypridd, a waterproof render will keep your walls completely protected.
Why Exterior Wall Rendering With Silicone Is The Smart Choice
When you invest in exterior wall rendering for your South Wales or Pontypridd property, you want it to last. You want to know that your walls are fully protected — not just for a few years but for decades.
Silicone exterior wall rendering gives you exactly that. Here is why it is the only truly waterproof external render finish available:
Silicone Creates A Permanent Waterproof Barrier
The silicone ingredient in the render bonds to your external walls and creates a completely waterproof shield. Rain, moisture and damp simply cannot penetrate through it — keeping your property dry and protected all year round in South Wales and Pontypridd.
It Is Breathable At The Same Time
This is what makes silicone render truly unique among all external render finishes. Even though it is completely waterproof from the outside, it still allows moisture vapour from inside your walls to escape. This means your walls can breathe naturally — preventing trapped damp and condensation building up inside.
It Will Not Crack Or Let Water In
Other exterior render finishes like sand cement render crack over time — especially in the wet and cold climate of South Wales and Pontypridd. Once a crack appears, water gets straight in. Silicone render is flexible so it moves with your building and does not crack — keeping that waterproof barrier completely intact for 25 years or more.
Key Benefits Of Silicone Rendering For South Wales Homes & Commercial Buildings
Choosing the right external render finish for your property in South Wales and Pontypridd is one of the most important decisions you can make as a homeowner or commercial property owner. Silicone rendering offers a range of benefits that no other render system can match. Here is why thousands of properties across South Wales and Pontypridd are making the switch to silicone rendering.
Completely Waterproof
Every other render on the market is only water resistant — meaning water will eventually get through. Silicone render is the only completely waterproof render system available, making it the perfect choice for the wet climate of South Wales and Pontypridd.
20x Thicker Than Normal Paint
Silicone render is up to 20 times thicker than traditional masonry paint. This means a far stronger, more durable and longer lasting layer of protection for your external walls across South Wales and Pontypridd.
No Painting Ever Needed
The colour is already built into the render itself — so you will never need to paint your exterior walls again. No repainting, no extra costs, no hassle for 25 years or more.
Because silicone render creates a completely waterproof barrier, moisture simply cannot get into your walls. No moisture means no damp and no mould — keeping your South Wales or Pontypridd property healthy and protected.
Reduces Heat Loss & Energy Bills
The thick silicone render coating acts as an extra layer of insulation on your external walls — helping to reduce heat loss and lower your energy bills every month.
25 Year Manufacturer Guarantee
Silicone render comes with a 25 year manufacturer guarantee — giving you complete peace of mind that your property is protected for decades to come.
Silicone Render vs Other External Render Systems — Full Comparison
As you can see from the comparison above, silicone render is the only external render system that ticks every single box. No other render system comes close when it comes to waterproofing, durability and long term protection for properties across South Wales and Pontypridd. If you want the best possible protection for your home or commercial property — silicone render is the only choice.
The Stages Of Our Silicone Rendering Process
At PRBGE Environmental, we follow a strict and proven 6 stage silicone rendering process for every property we work on across South Wales and Pontypridd. This ensures that every job is completed to the highest standard — giving you a finish that is completely waterproof, long lasting and beautiful.
Stage 1 — Remove Old Paint & Apply Red Grid
Before any silicone rendering can begin, our team carefully removes all old flaking paint and loose material from your external walls. We then apply a red grid base to the surface. This is a crucial first step as it ensures the render bonds properly to your walls — giving a strong and secure foundation for the rest of the process.
Stage 2 — Apply Breathable Silicone Render Base Coat
Once the surface is prepared, we apply a breathable silicone render base coat to your external walls at a thickness of 3 to 5 millimetres. This silicone render base coat is specially formulated to be completely breathable — meaning moisture inside your walls can still escape naturally while keeping rain and damp completely out. This stage is what separates silicone rendering from all other render systems available in South Wales and Pontypridd.
Stage 3 — Trowel Mesh Into Base Coat & Scratch
While the silicone render base coat is still wet, our team trowels a reinforcement mesh into the surface. This mesh adds an extra layer of strength and flexibility to the render — preventing cracking and ensuring the render stays firmly in place on your South Wales or Pontypridd property for decades. The surface is then scratched and left to dry completely.
Stage 4 — Apply Further 4mm Render On Scratch Coat
Once the base coat is fully dry, we apply a further 4 millimetre layer of render on top of the scratch coat and fine it down to a smooth and even surface. This additional layer builds up the strength and thickness of the overall render system — ensuring maximum protection for your external walls across South Wales and Pontypridd.
Stage 5 — Apply Bonding Coat
Before the final silicone render top coat can be applied, a bonding coat is carefully applied across the entire surface. This bonding coat ensures that the final top coat adheres perfectly and evenly to the render beneath — creating a seamless and professional finish on your South Wales or Pontypridd property.
Stage 6 — Apply Silicone Render Top Coat In Your Chosen Colour
The final stage is the most exciting! We apply a thin coat silicone render top coat at 1.5 millimetres in your chosen colour — giving your South Wales or Pontypridd property a stunning, fresh and completely waterproof finish. With a wide range of coloured silicone render options available, you can choose the perfect colour to transform the look of your home or commercial property. And the best part? You will never need to paint it again!
Our Service Areas
Our services and expertise are available to residential and commercial property throughout the South and South East of Wales.
Serving Cardiff • Caerphilly • Rhondda • Merthyr • Bridgend • and surrounding areas.
Cardiff and more ..
Tailored solutions for properties in Cardiff and surrounding areas including Merthyr Tydfil, Rhondda Cynon Taf, Caerphilly and the Vale of Glamorgan.
Newport and more ..
Exceptional solutions,, support and expertise available in Newport and surrounding areas, including Blaenau Gwent, Torfaen and Monmouthshire.
Swansea and surrounding areas ..
Our area of operation extends to the South West, available in Swansea, Port Talbot and Neath, and Bridgend.
Get Your Free Silicone Rendering Quote In South Wales Today
Are you ready to transform and protect your property with the only completely waterproof render system available? PRBGE Environmental is here to help. We provide professional silicone rendering services for homeowners and commercial property owners across South Wales and Pontypridd — and we would love to help you too.
Whether you are looking to protect your home from damp and mould, improve the look of your property, or reduce your energy bills — silicone rendering is the smartest investment you can make. And with a 25 year manufacturer guarantee, you can have complete peace of mind that your property is protected for decades to come.
Why Choose PRBGE?
- Fully qualified and experienced rendering team
- The only completely waterproof render system — not just water resistant
- Serving South Wales and Pontypridd and surrounding areas
- 25 year manufacturer guarantee
- Residential and commercial properties covered
- Wide range of colours available
