Insulated Render – what you need to know!
Is the render on your home looking a little tired? Well there has never been a better time to re-render your home! Traditionally render was a simple sand and cement, which works well however it simply doesn’t last.
The BBA approved renders we use – known as thin coat renders – are high performance, multi coat render systems. The key difference is that they have an additional reinforcement layer. This reinforcement layer consists of a flexible fibreglass mesh embedded within an adhesive. The benefit of this is that it moves with the building, so the cracks that are common place with the old sand and cement renders simply don’t form.
The thin coat render, as the name suggests, is incredibly thin. A 1mm granulate render should be applied on the wall in a 1mm thick layer – obviously this is incredibly thin but again it gives the render a flexibility allowing it to adapt to changes in the building through expansion and contraction (between the different seasons) and also any slightly movements.
Don’t be fooled into thinking that our render systems won’t last though because they are flexible! We offer a guarantee of 10 years (although we can organise a 25 year guarantee for additional cost through a third party). These systems have been used across Europe in climates far more diverse than we get here and they have lasted 30 years or more.
Our most popular render is our Silicone Silicate system – this is because it is not only breathable, but it is also hydrophobic meaning it repels water so this system can be considered self-cleaning. This render is also available in lots of different granulate sizes too to give different finishes depending on your requirements – it is available in 1mm, 1.5mm, 2mm and 3mm. The Silicone Silicate render is also available in almost a limitless number of colours so you can match it to your favourite football team or whatever else takes your fancy.
A new layer of render on your home will really bring it to life – helping protect the underlying brickwork and make it look as good as new however if you are looking for something a little bit more than just an aesthetic improvement read on!
Insulated renders are the future
Renders are all good and well, but it is the insulated renders where the future really lies . Renders have all the features mentioned above but with the added benefit of vastly improved thermal efficiency of your home. It is almost inevitable you will have experienced a cold home – an older house perhaps with single glazed windows and old solid bricks. You may also have been inside a new build, with its brand new highly insulated cavity walls, triple glazing and lots of loft insulation.
Well our insulated render brings your house right up to modern energy efficiency standards. No longer do you need to live in a cold house! The insulated render systems can dramatically improve the thermal comfort of the house. 100m of expanded polystyrene installed under the render can take the u-value of the wall to less than 0.3w/m2k – that is better than a brand new wall built today. So not only are you improving the look of your house you will also benefit from massive energy savings.
Exactly how big are the energy savings from external insulation renders?
We get asked exactly how big the energy savings will be and it is difficult to put a figure on it, but we do offer a relatively simple calculation to help, which is as follows.
Take your energy bill and divide it by 0.7 – this gives you the element of your bill associated to gas (rather than electricity used for lighting etc). Take this figure and multiply it by 0.8 – this strips out the hot water element so just leaves the heating.
Divide this figure by two and that should give you an approximate energy saving from our insulated render systems. To work through an example – lets say the energy bill is £1350 a year which is the average energy bill here in the UK.
So the calculation is as follows.
- £1350 x 0.7 = £945 (spent on gas – this calculation strips out electricity).
- £945 x 0.8 = £850 (spent of heating – this calculation strips out hot water).
- £850 / 2 = £425 annual saving from installing insulated render.
A yearly saving of £425 simply by adding a layer of insulation underneath the render – in our opinion well worth it!
So why then not do both at the same time? Render + Insulation!
IN render systems are charged at just 5% VAT while our render only systems are charged at 20%. The increased costs associated with insulating at the same time as rendering are not covered entirely by this 15% VAT saving but as soon as you couple in the energy savings resulting from the insulation, the additional cost of the works in many cases will pay back in just 2 years – and then from then on you benefit every time you turn your heating on as your home won’t lose heat as quickly.
At Be Constructive we have been insulating homes across the UK for 4 years now. While we don’t ever claim to be the cheapest rendering company out there we are certainly one of the best! We have numerous teams up and down the country helping to upgrade the appearance of our customer’s homes. Our insulated render systems are mentioned are all BBA approved meaning they really our the best in the business and all our operatives have gone through our comprehensive training – we only let the best guys out on site!
If you are looking to get your home rendered insulated render to get the additional energy savings, look no further than BeConstructive – the rendering experts!