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Moving into the higher risk sections we have thermal lagging, remember from previous videos asbestos has great thermal and water resistance.

As a result, most thermal lagging around pipework contains brown asbestos, which sometimes has up to 80%.

Here we have a flue section, we can see an element of asbestos mixed in and as it’s stripped away you can see the brown asbestos present.

Here we have a green tank with an insulation layer of asbestos and also the cream coloured pipe.

Here we have a massive boiler system lagged with asbestos top to bottom

Here we have cement flu, when solid we have a need to worry, however, this one is in bad condition.

With the old style wrap insulation, it would be wrapped around loose-fill asbestos insulation and glue it together. It’s easily damaged and once the adhesive fails it becomes a danger as asbestos can just fall out.

This is a really good colour indication, thinking back to the 70 80’s we would generally come across off colours such as off yellow, greens, purples and browns. If you come across insulation layers this colour then that should be a red flag for potential asbestos contamination.

Asbestos coatings is a real high risk, they would get a vat of glue and pour asbestos straight into it, mix it up and spray straight onto steelworks, concrete beams etc.

It was used on road steel joists but later replaced once it was realised how dangerous spray coatings were.

In this picture, they would use the asbestos coating and then additionally add AIB.

Here we can see how rough and ready the approach was, you see elements that have degraded if it were to fall onto the ground people could tread on it, break it up and breath in the dust.

This picture really shows the shotgun approach, you can see in the picture a worker with his spray lance spraying onto the ceiling while aiming for the pipework he’s actually hit other areas.

Lastly and the most dangerous is loose fill insulation, this is raw 100% asbestos, generally used to fill in walls, cavities, and lofts and we can see here a great example of asbestos being filled and leaving a layer of dust. If you were to open up a loft too fast you could create fast air movement causing this layer dust to get disturbed.

Here’s another example of it being placed into the flooring.

This is what it looks like close up, very similar to dust balls. We don’t come across loose fill insulation anymore, however, it does crop up in older buildings, so whenever working in these buildings you need to be aware.

We have talked about the 13 deadly forms, however, they’re many others, so you must be vigilant, look at the items you’re working on, does the item need to be fire resistant? water resistant? sound insulation? If you answer yes to these kinds of questions then you could be dealing with asbestos.