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ISS Facility Services Restoration

New site Safety Stations rolled out to branches

The 'site safety station' idea was conceived during the 'site audit' process carried out by our Health and Safety team.



ISS is delighted to announce the appointment of Steve Mitchell as Managing Director of ISS Restoration.


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Technical Information

Rapid Drying (also known as Speed drying, Convection drying)


Rapid drying is a current 'buzz' word in the industry; certainly its profile has increased as a result of the Cockermouth and Cumbrian floods in Nov 09. Everyone is talking about rapid drying because of its potential to vastly reduce drying times of properties and therefore claim cycle and cost, specifically important in the current economic climate.

So what is a Rapid Drying System (RDS)

A Rapid Drying System (RDS) is any piece of drying equipment that works on the following principal. A system that draws in air, dry's and/or heats it (which increases the moisture content each cubic meter of air can hold) and injects it into a building to be dried. The building is therefore both heated and pressurised. The hot air chamber created within the building absorbs moisture like a sponge from the wet building structure and moisture is drawn from materials. The water saturated air is then removed from the building by a method of venting to the outside. Air movers or heat exchangers circulate a large volume airflow throughout the building. Heat is normally generated by a fuel such as diesel so electrical supply requirements are low. Equipment utilising this principle can vary in size from trailer mounted to portable units.

Rapid drying diagram courtesy of Dryair

Does ISS Restoration have Rapid Drying Systems?

ISS currently have 6 trailer mounted systems and utilise portable 'speedry' units.

Our Rapid Drying Systems consists of a diesel fuelled, trailer mounted boiler which heats a glycol and water solution between 60°C and 92°C and pumps it to up to 10, 30 or 60KW heat exchangers strategically positioned within the property.

Each system has two heating loops, which can be 150m long. Therefore if multiple smaller properties in close vicinity are affected, one trailer can dry multiple properties with each property having between 2 and 5 heat exchangers within. This approach makes RDS an even more cost effective drying solution with its costs split over multiple properties/claims. Also with a lift of 40m multiple storey properties such as flats can be dried

The Benefits of RDS

There are four main reasons why RDS can save time and money:

Significantly reduced drying times. Drying times are reduced from months to weeks or weeks to days. In our experience drying times can been reduced by over 70% compared to using traditional drying methods like dehumidifiers.

Reduced stripping out. The need to ‘strip out’ is often reduced when using RDS, especially the sooner it is applied to the property.

Controlled (in and out) drying. RDS drying is a short and tightly controlled method. The property must be vacated and therefore equipment is not switched off.  Diesel fuelled the system does not rely on the capacity of the property’s electrical supply (often a limiting factor) and skilled technicians monitor drying progress daily for optimum performance and progress.

Claim Cost savings: Reducing drying time has huge capability to translate into significant overall claim cost savings in terms of drying costs, business interruption, loss of rent and alternative accommodation.

Is Rapid/Speed drying the way forward ?

Rapid drying has huge potential to save money on drying projects and claims however will not always be 'right tool' for the job.
The cost and investment in RDS systems is high and therefore hire and running costs of a system are higher too, this can make RDS prohibitive in terms of sums insured. There are practical reasons too. Properties must be vacated due to the heat involved which is not always desirable or practical and the impact of rapid drying on building materials must be considered. Some buildings need to be dried more sensitively and slowly for optimum results or a combination of RDS and traditional methods used. The application of the system by trained restoration professionals is vitally important to a project’s success; this equipment can damage properties if applied incorrectly. Physical or practical limitations can also sometimes apply, building design, layout and security are some examples.

In summary, the Insurer, Loss Adjuster, Surveyor and DR company should always consider the benefits RDS when scoping a project. A good DR company should give instructing principles options and costs for RDS and alternative drying methods when assessing a loss, so the wider team can make an informed decision.

ISS Surge Status

Current Level = GREEN

click here for more details on our current surge service levels.

Could you be the one we're looking for?

ISS Restoration is the country's leading experts in commercial disaster recovery and we are currently recruiting for talented individuals for the following vacancies.


If you feel you have the qualifications and experience to make a difference, then please apply here.