Leadax Roov

Leadax Roov

A circular and innovative roofing material in reflective off-white, made from waste. Lightweight, durable and easy to apply without open flame.

Benefits of our sustainable flat roofing product.

Lightweight.

Lightweight.

Leadax Roov weighs only 1.8 kg per m2. Less weight per m2 means more m2 per roll, so less lifting up and down. This not only saves your back, but also saves you time. Win-win if you ask us.

Quick & easy to apply.

The product is easy and quick to process. This provides extra ease of use, which also reduces processing time and costs.

Quick & easy to apply.
No open fire.

No open fire.

Leadax Roov can be applied without the use of open flame or hot air. Also, the flat roofing material is fire resistant. This means it can withstand sparks blown over by a strong wind, such as a nearby fire or flare. 

Vapour-permeable.

Because the flat roofing material is vapour-permeable, there are no problems with mold spores*. 

*Provided the prescribed application is followed.

Vapour-permeable.
Designed to dismantle.

Designed to dismantle.

At the end of it's lifecycle, the flat roofing material will be recycled and the raw material will be reused for new products. This way, no new primary raw materials need to be used.

Multiple roof systems.

In addition to the suitability for both flat and pitched roofs, the flat roofing material can be used on all surfaces, including wood, concrete and metal.

Also, the product can be used on a mechanically fixed, loose-laid ballasted and fully adhered single ply roof. In all cases, bilge fixing strips are attached around the edges of the roof and around upright objects such as a roof dome.

Multiple roof systems.

Application and Processing instructions

Loose-laid ballasted roof system


With a loose-laid ballasted system, a ballast layer ensures that Leadax Roov is held in place.

Mechanically fixed roof system


With a mechanically fixed roof system, Leadax Roov is attached to the roof construction.

Fully adhered single ply roof system


With the fully adhered single ply roof system, Leadax Roov is attached to the substrate by means of water-based glue.

Leadax Roov is also suitable for multifunctional roofs.

The flat roofing material can be used on many types of roofs and several types of roofs can be combined. This includes white roofs, energy roofs and green roofs. Click on one of the different types of roofs below for an explanation of how Leadax Roov can be used for each type of roof. 

Off-white roofs

Leadax has chosen to make Leadax Roov off-white for several reasons. Most roofs in the Netherlands are covered with black bitumen, which ensures that these roofs can reach a surface temperature of 80 °C. Cooling this down requires more energy than warming up. Off-white roofs reflect sunlight, which keeps the building cooler and saves energy. 

White roofs are also very suitable in combination with solar panels. The reason for this is that solar panels have poorer electrical conductivity at a higher temperature, which reduces their efficiency. Off-white roofing under the solar panels ensures that there is less heat radiation on the roof. This keeps the solar panels cooler and means they produce more energy.

Energy roofs

Leadax Roov is very suitable for combining with solar panels (see 'Off-white roofs'). Solar collectors can also be placed on the roof for heating the building, tap water or a swimming pool. These roofs can also be combined with white and green roofs.

The flat roofing material is only 1.5 millimetres thick, which makes it possible to walk on the roof. For example to carry out maintenance on the solar panels.

Green roofs

A green roof is slightly different from a traditional roof, and Leadax Roov is a good product for this too. There are different types of green roofs, such as moss sedum roofs, garden roofs and roof parks.

Green roofs have multiple benefits:

 Relieving the sewerage system

 Insulating effect

 Cooling in the summer and heating in the winter

 Cooling of the ambient temperature

 Contribute to a better air quality

Water roofs

Water roofs are built to temporarily store rainwater, thus relieving the sewerage system. After collecting the water, it can be stored on the roof or in a water tank. The water can be filtered and used for applications such as flushing the toilet. 

There are two types of water roofs: 

  1. Water roofs with permanent water on them
  2. Water roofs that temporarily store water
     

The water volume of permanent water features is higher than that of temporary water features.

A water roof has several advantages, such as:

 Saving on water costs

The burden on the sewer will be reduced, thus preventing flooding

 Reduced use of groundwater

 Insulation of the roof

 Possible reduction in sewerage charges

 Possible municipal subsidy schemes

 Payback time of approximately 12 years


Recreational roofs

A recreational roof creates more living and/or working space. If this space has no use, it can be rented out. This provides an increased financial value. It is also possible to combine this roof with a green roof, for example by growing crops (vegetables and fruit cultivation).

Off-white roofs

Leadax has chosen to make Leadax Roov off-white for several reasons. Most roofs in the Netherlands are covered with black bitumen, which ensures that these roofs can reach a surface temperature of 80 °C. Cooling this down requires more energy than warming up. Off-white roofs reflect sunlight, which keeps the building cooler and saves energy. 

White roofs are also very suitable in combination with solar panels. The reason for this is that solar panels have poorer electrical conductivity at a higher temperature, which reduces their efficiency. Off-white roofing under the solar panels ensures that there is less heat radiation on the roof. This keeps the solar panels cooler and means they produce more energy.

Energy roofs

Leadax Roov is very suitable for combining with solar panels (see 'Off-white roofs'). Solar collectors can also be placed on the roof for heating the building, tap water or a swimming pool. These roofs can also be combined with white and green roofs.

The flat roofing material is only 1.5 millimetres thick, which makes it possible to walk on the roof. For example to carry out maintenance on the solar panels.

Green roofs

A green roof is slightly different from a traditional roof, and Leadax Roov is a good product for this too. There are different types of green roofs, such as moss sedum roofs, garden roofs and roof parks.

Green roofs have multiple benefits:

 Relieving the sewerage system

 Insulating effect

 Cooling in the summer and heating in the winter

 Cooling of the ambient temperature

 Contribute to a better air quality

Water roofs

Water roofs are built to temporarily store rainwater, thus relieving the sewerage system. After collecting the water, it can be stored on the roof or in a water tank. The water can be filtered and used for applications such as flushing the toilet. 

There are two types of water roofs: 

  1. Water roofs with permanent water on them
  2. Water roofs that temporarily store water
     

The water volume of permanent water features is higher than that of temporary water features.

A water roof has several advantages, such as:

 Saving on water costs

The burden on the sewer will be reduced, thus preventing flooding

 Reduced use of groundwater

 Insulation of the roof

 Possible reduction in sewerage charges

 Possible municipal subsidy schemes

 Payback time of approximately 12 years


Recreational roofs

A recreational roof creates more living and/or working space. If this space has no use, it can be rented out. This provides an increased financial value. It is also possible to combine this roof with a green roof, for example by growing crops (vegetables and fruit cultivation).

Complete the set with the right tools & accessoiries.

LRS/Leadax


The LRS (Leadax Reinforcement Strip) and the Leadax parameter fastening strip are the same product, for two applications. This ensures less confusion, more comfort during application and less residual waste.

Leadax Liquid PVB


The Leadax Liquid PVB can be used to seal T-joints and edges.

Leadax Bio-Bind


Bio-Bind is a welding fluid for seams and for editting details. Leadax only gives a guarantee on Leadax Roov when the Bio-Bind is used.

Leadax High-Tack Sealant


This Leadax High-Tack is very suitable for connecting Leadax Roov to the substrate. Leadax only gives a guarantee on Leadax Roov when the High-Tack Sealant is used.

PVB Drain


Rainwater outings for draining water on the roof, both straight down and to the sides. Made of PVB waste and fire retardant.

Inner Corner


Inner corner to finish the corners (of a roof) well. The Inner Corner, like other Leadax products, is made of PBV waste and is fire retardant.

Outer Corner


Outside corner to finish the corners (for example of a skylight). The Outer Corner, like other Leadax products, is made of PVB waste and is fire retardant.

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Circular waterproofing materials for the world of today