Moisture and Humidity Control Hire Solutions to Assist with Drying Out Programmes

Yes. Our industrial dehumidifiers are selected to deliver effective moisture removal while managing energy consumption. The most efficient solution will depend on factors including the size and temperature of the space, the level of humidity and the required drying time. RVT Group can assess your project and recommend the most suitable equipment and setup.

RVT Group offer a range of refrigerant and desiccant dehumidifiers for small, medium and large-scale drying and humidity-control applications. The correct capacity will depend on the volume of the space, ambient temperature, moisture levels, air movement and the materials being dried. Our consultants can help specify the most appropriate hire solution for your site.

Yes. Industrial dehumidifiers can accelerate the drying of concrete, screed, plaster, timber, paint and other finishes by removing excess moisture from the air. This can help follow-on trades begin sooner, reduce delays and keep construction programmes on schedule. For faster drying, dehumidifiers may be combined with temporary heating and air-moving equipment.

Desiccant dehumidifiers are particularly suitable for cold or unheated environments and applications requiring very low relative humidity. Unlike refrigerant models, they remain effective at lower temperatures, making them suitable for winter construction, industrial shutdowns, sensitive storage, coating work and corrosion prevention.

Refrigerant dehumidifiers are generally best suited to enclosed spaces with moderate or warmer temperatures. They are commonly used for general building drying, refurbishment work, flood recovery and drying following wet trades. They provide an efficient solution where extremely low humidity levels are not required.

Portable dehumidifiers can usually be positioned and set up quickly. However, larger or more complex projects may require ducting, drainage, power supplies, air movement or monitoring equipment. RVT Group can advise on the correct setup and provide a complete temporary drying and humidity-control solution for your site.

Yes. By reducing excess moisture and controlling relative humidity, dehumidifiers can help limit condensation and reduce the conditions in which mould may develop. They can also help protect building materials, completed finishes, stored products, machinery and electrical equipment from moisture-related damage.

Yes. Dehumidifiers can be supported by temperature and humidity monitoring equipment to provide greater visibility of site conditions and drying progress. Monitoring can help identify changing conditions, confirm whether the equipment is performing effectively and provide a record of temperature and relative humidity throughout the project.

A desiccant dehumidifier removes moisture from the air using a moisture-absorbing material contained within a rotating desiccant wheel. Humid air is drawn into the unit and passed through the wheel, where the moisture is absorbed. The resulting dry air is then discharged back into the space or directed to a specific area through ducting.

Unlike refrigerant dehumidifiers, desiccant units remain effective at low temperatures, making them particularly suitable for cold, unheated or specialist environments.

A desiccant dehumidifier uses two separate air streams. The process air passes through a rotating desiccant wheel, which absorbs moisture and releases dry air into the required area.

A second, heated regeneration air stream removes the collected moisture from the wheel and exhausts it outside the drying area. This continuous process enables the unit to maintain low and stable humidity levels, even when temperatures are cold.

For the best results, the drying area should be enclosed as effectively as possible to prevent humid outside air from entering.

Desiccant drying is particularly effective when:

• Temperatures are low or the space is unheated.
• Very dry air or low relative humidity is required.
• Dry air needs to be distributed through long duct runs.
• Humidity must remain stable despite changing temperatures.
• Moisture-sensitive materials, processes or equipment need protection.

This makes desiccant dehumidifiers well suited to winter construction, industrial shutdowns, preservation work, coating applications, corrosion prevention and specialist drying projects.

A refrigerant dehumidifier removes moisture by cooling humid air over a chilled coil, causing the water vapour to condense. It is generally most effective in enclosed spaces with moderate or warmer temperatures and is commonly used for general building drying and water-damage restoration.

A desiccant dehumidifier uses a moisture-absorbing rotor rather than a chilled coil. It can continue removing moisture effectively in cold or unheated environments and can achieve much lower relative humidity levels.

The most appropriate option will depend on the temperature, size and condition of the space, as well as the required drying time and target humidity.

Desiccant dehumidifiers can support a wide range of construction, industrial, infrastructure and specialist drying applications. These include:

• Drying plaster, concrete, screed, paint and finishes in colder conditions.
• Controlling condensation and corrosion inside water tanks, silos and enclosed structures.
• Protecting sensitive products and equipment in food, pharmaceutical and manufacturing environments.
• Preventing corrosion within ships, machinery spaces, storage areas and other marine environments.
• Supporting water-damage and flood recovery projects.
• Maintaining controlled conditions in hospitals, laboratories and data environments.
• Creating suitable conditions for coating, blasting, maintenance and preservation work.

Their primary role is to protect materials and equipment, maintain suitable environmental conditions and reduce delays caused by excess moisture.

A refrigerant dehumidifier draws humid air across a chilled coil. As the air cools, moisture condenses into water, which is collected in a container or removed through a drainage system. The dried air is then reheated slightly and returned to the space.

Refrigerant dehumidifiers generally work best in enclosed areas with moderate or warmer temperatures. Doors and windows should be kept closed wherever practical to prevent additional humid air from entering and reducing drying performance.