Overcladding Asbestos Roof

Overcladding runs the risk of disturbing the asbestos by drilling into the existing roof.

Overcladding asbestos roof.

The overclad process involves fixing a quatro bar mini zed rail or steel grid tight bar through your existing roof into the purlins below. The ashgrid spacer system is an ideal component for the over roofing or over cladding of any building where the existing roofing or cladding has become unsightly beyond repair or an improvement in. This is a cost effective approach with an aesthetically pleasing and watertight result. By overcladding a roof additional weight will be added to the structure.

Over cladding or over sheeting asbestos roofs means the original asbestos roof stays where it is while new sheets are positioned on top and secured by a fixing that goes through the old roof and attaches to the existing structure of the building. This would then require an engineer to carry out structural calculations to ensure that the structure is capable of holding the additional weight. Once fixed into place any of our roofing sheets whether that s box profile corrugated or tile effect roofing sheets can be fixed into position. Potentially causing harm to you and anyone else close by.

The overcladding of an asbestos roof is a cost effective roof refurbishment process that minimises the disruption at site. 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. 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. At roofclad we strongly recommend not going down this route and replacing the roof instead.

In some cases asbestos containing materials need not be removed and can instead be over clad. This means the new roof cannot get enough stability on top of the old one a common risk of over cladding. This is especially true when it comes to asbestos cement roof coverings. However many asbestos roofs are built with concrete portals meaning the roof is supported by a small number of concrete arches.

The benefits of asbestos overcladding. This stops any leaks and leaves you with a brand new roof without having to disturb the old one. 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. Roof cladding requires bolts to be drilled into the asbestos roof.