They were so help­ful, hard­work­ing and friendly.’

The first step of instal­la­tion was scaf­fold­ing, with pro­tec­tive sheet­ing cov­er­ing the ground and win­dows. The walls were then primed to ensure the adhe­sive has the best sur­face to grip to – note that the peb­bledash did not need to be removed at all. Next, the insu­la­tion board was applied with adhe­sive, with fix­ings going through into the brick­work to help ensure the insu­la­tion boards were secure. A rein­force­ment base coat was then applied to the insu­la­tion boards which con­sists of adhe­sive and a fibre­glass mesh layer – this ensures the ren­der doesn’t crack. To fin­ish the exter­nal wall insu­la­tion sys­tem we used a breath­able thin coat sil­i­cone ren­der, which pro­vides a fresh, mod­ern look­ing fin­ish. This is far more hard­wear­ing than tra­di­tional sand and cement ren­der sys­tems.

The advan­tages of insu­lat­ing, rather than re-ren­der­ing, are clear:

  • there is no need to strip off the exist­ing ren­der first
  • it could save around £400/year on energy bills for an aver­age semi-detached home
  • it helps to reduce damp on cold exter­nal walls
  • it gives a great look­ing fin­ish to the house

The end result was a mod­ern-look­ing prop­erty, insu­lated above and beyond cur­rent build­ing reg­u­la­tions. As you can see, it was quite a trans­for­ma­tion!

The job was car­ried out with­out fuss in around two weeks. Dorothy was able to carry on liv­ing in the prop­erty through­out, with min­i­mal dis­rup­tion. She was pleased with the job and will be much warmer this win­ter!