ASBESTOS ROOF OVERCLADDING
When overcladding an asbestos cement roof, it will also be necessary, in most cases, to include a layer of insulation to meet current day building regulations.
The first stage is to fix a framework to hold the metal sheets in place, directly to the purlins underneath the asbestos cement roof sheets.
The insulation is then installed into the framework (often an ashgrid system, so named after the original manufacturer, Ash & Lacy Construction) and the metal weather sheet is the fixed to a bar that acts in the same way as a purlin, to support the new roof sheets.
The end result will look just like a new roof, but without the asbestos disposal costs.
Budget around £60-£70 per square metre.
Asbestos Roof Overcladding Cost
We often hear of contractors suggesting that they can overclad an asbestos roof for around the £40 per sq metre mark.
In every instance where we have tendered an overcladding project though, the quotes that come in are invariably in the £60-£65 region.
The resson for this is because when we specify overcladding projects, we take everything into account.
There are often costs that are hidden – usually concerning the stringent health and safety regulations that apply to this type of work, for example, internal or sacrificial safety netting.
Help Is At Hand
There are many things to be taken into account when overcladding an asbestos roof.
Safe access is important, but consideration also needs to be given to the structure of the building.
It is more complicated and therefore, more expensive, to overclad a concrete portal framed building, because you are not able to fix directly into the concrete purlins.
Our building surveyors will be happy to discuss and advise on your overcladding project without obligation on 0121 711 7110.
Our opening hours are Monday to Friday, 8:30am to 5:30pm
Commercial Property Surveys Ltd
Unit 3 Radway Industrial Estate
Tel: 0121 711 7110
Unit 8 Radway Industrial Estate
Tel: 0121 709 5352