Render and insulated render what you need to know

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Render and Insulated Render – what you need to know!

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!

1 comment

  1. Just a quick comment to say that we have found Be Constructive really helpful and a good company to work with. Paul in particular is really great in the office and is always able to help.

    That is why we have added them to our installer map, which features External Wall Installers as well as cavity wall insulation, floor insulation, heating solutions and renewable techs. Find our map here:

    All the best,
    The GreenAge Team

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