Should you be concerned if you have vermiculate insulation in your roof?

Vermiculate insulation is commonly used to insulate building roofs and walls. If you have vermiculate insulation in your home, you may be concerned by reports that some vermiculate can contain asbestos.

If your vermiculate insulation was installed after 1990 then you’ll be relieved to know that it is unlikely to contain asbestos. There is however a chance that older vermiculate insulation could be contaminated with the dangerous substance.

What is vermiculate?

Vermiculate is a natural material that expands when it is heated, making it ideal for insulation. It is flaky material that looks a little like grey, lightweight gravel. 

Vermiculate and asbestos

In its natural form, vermiculate is not dangerous and does not contain asbestos. However, prior to the 1990s, most vermiculate originated from one mine in America which was contaminated with asbestos, later causing problems for over 35 million homeowners in the USA.

Unfortunately, vermiculate from the same mine was imported to the UK for use as insulation in our homes prior to the 1990s, so it is possible that if your home contains very old vermiculate insulation it could too be contaminated with asbestos.

How to deal with old vermiculate insulation

Asbestos is a very dangerous substance that poses numerous health risks. It is a known carcinogen and can cause a variety of serious lung diseases and health problems.

If you suspect that your insulation could be contaminated by asbestos, then it is very important not to touch or disturb it any way as asbestos is most dangerous when it becomes airborne.

Instead, seek help from a professional who is licensed in the removal of asbestos. They can then test for the presence of asbestos and safely remove the insulation if necessary.

Spray foam insulation

If you are removing old insulation from your roof, then it will need to be replaced with a new insulation material to keep your home warm, comfortable and energy efficient.

Speak to our team here at Metropolitan Insulation about the benefits of our spray foam roof insulation by calling us on 0800 028 4042.