Asbestoseal from Liquasil. BBA Approved asbestos roof coating system

Asbestoseal – asbestos roof coating

Asbestoseal was the UK’s first dedicated asbestos roof refurbishment system and is ideal for refreshing and prolonging the life of aged asbestos cement roofs.

More than just roof paint, Asbestoseal is a full system designed by Chartered Building Surveyors to tackle the common issues that affect asbestos cement roofs.

Application of the Asbestoseal System

Asbestoseal was the first BBA Approved, dedicated asbestos roof coating system on the market with a stated and tested service life of at least 25 years.

Please note that in 2024, we decided not to renew our BBA certification for this product.

Asbestoseal can be applied by brush, roller or airless spray, usually in a single coat. Where aesthetics are important, the appearance of the system can be improved by the use of a surface primer, a mist-coat if spraying, or the application of an additional coat of Asbestoseal.

Liquasil can provide guidance to professional specifiers, along with budget costs based from a site visit, or from your own photographs, as long as they are of suitable quality and quantity.

Application of Asbestoseal can be carried out on occupied buildings, so there is rarely any disruption to your business.

Why Use Asbestoseal?

The life expectancy of an asbestos or fibre cement roof is 25 to 40 years (according to RICS) and many are now at, or near the end of their economic life, suffering from a range of issues.

For a roof coating to be successful, it must tackle all of the problems that are generally associated with this type of roof.

The Asbestoseal system comprises three main components to achieve this;

SWT Corrosion Primer that is applied to all metal fixings such as hook bolts. This prevents rust breaking through the coating (which is a very common problem with other coatings);

Non-Sag Sealer, a specially formulated silicone that is brush applied to all primed fixings to re-seal failed rubber seals and also used for instantly sealing small holes and cracks in roof sheets;

Asbestoseal is the asbestos roof paint, made from silicone polymers, that is applied to the entire roof to form a complete protective membrane that will help prevent further deterioration of the asbestos cement roof sheets.

Asbestoseal was designed by our own building surveyors to provide a very long-lasting solution to problematic asbestos cement roofs. It can also be applied to asbestos cement cladding.

This product is available only for use on commercial and industrial premises. We do not supply it via merchants or to anybody that has not been through our Approved Installer training.

There are three main reasons for this.

1) System failures are more likely to occur when specialist products are used bny untrained personnel.

2) Warranties are available exclusively via Liquasil Approved Installers.

3) Asbestos roofs are fragile and require rigorous health and safety precautions. Liquasil Approved Installers understand this and therefore, any price they quote, will include for this.

The greatest risk posed by asbestos roofs actually arises from the potential of falls from height, rather than from asbestos contamination.

More importantly, if you are considering painting an asbestos roof, the client becomes responsible in law for the health and safety, so you should not risk using companies that are not competent to work safely on asbestos roofs.

If you are in any doubt about this, we offer an optional, dedicated project management service through our own Chartered Building Surveying Practice.

Under no circumstances should a non-qualified person manage an asbestos roof coating or replacement project. Always seek professional assistance.

Asbestos cement products were banned from use in the UK in 1999, but many older roofs remain in place today and are at, or have already exceeded their predicted life span. Consequently, many building owners are now experiencing difficulties with their asbestos cement roofs.

Click here for more information on asbestos roofs.

Did you know that it might not be possible to coat your asbestos roof?

There are certain defects, that if present in large areas, could render the roof beyond economical repair. Only a site survey will determine this and even then, an inexperienced surveyor might not know what to look for.

Similarly, a commission-hungry salesperson or a “consultant” with a vested interest might not even care.

Liquasil Ltd doesn’t employ sales people and doesn’t pay sales comissions either internally, or to consultants, so there is never a conflict of interest.

This means that if we think a roof is not suitable for coating, we’ll be the first to tell you. Not only that, we’ll also suggest alternative options for you to consider.

What about the rooflights?

Asbestos roofs contain GRP rooflights and they can often be a source of water ingress. In fact, next to gutters, they are the most common source of roof leaks on asbestos roofs.

For this reason, we usually recommend rooflight replacemrent as part of any asbestos roof coating project. It has no adverse affect on price and it’s usually a false economy not to replace older roof lights.

Cleaning Asbestoseal

Asbestoseal is absorbed into the surface of the asbestos cement and is susceptible to environmental soiling. It is a soft coating that can be damaged by impact, abrasion or harsh jet washing.

Coated surfaces can be cleaned using low pressure jet wash, holding the lance at least 12 inches from the surface of the coating. Turbo lances must NOT be used.

If required, we can supply an anti-fungicidal was that will clear the coated roof of any fungal growth that might be present on the roof.

Alternatively, smaller roofs can be cleaned using a mild detergent such as Fairy Liquid and water, agitating the surface with a sponge or soft bristle car washing brush and then rinsing with clean water.

In the event that the product is damaged after installation, it can be easily over-coated again with Asbestoseal.

Become An Asbestoseal Installer

Asbestoseal is a BBA Approved product and we limit its supply to experienced roof coating contractors that have completed our free product training.

This helps to maintain the product’s integrity and reduces chances of system failure due to installer error.

If your company carries out works on industrial sized asbestos roofs, becoming a Liquasil Approved Installer will give you access to this exceptional product, providing you with a distinct industry advantage.

Did you know that all of our team members are qualified asbestos surveyors?

Did you know they all work as building surveyors too?

We can help you with your asbestos roof like no other coating company.

Call us on 0121 709 5352.