Rotho Blaas

PATROL + BLOCK

PATROL + BLOCK is a fall arrest system designed to protect against falls on flat roofs. It is a horizontal system that does not require holes to be made in the roof surface. Instead, it uses standard-format concrete slabs as ballast to keep everything in place. This ensures that the waterproofing membrane is not damaged and that there are no thermal bridges, which is important for the roof's insulation and lifespan.

The system consists of two parts: PATROL and BLOCK. PATROL is the lifeline itself that runs horizontally across the roof, and BLOCK is the ballast that holds everything in place without needing any attachment to the roof. It is a solution that is both stable and safe, as it can handle loads from all directions, that is, through 360 degrees.

PATROL + BLOCK is suitable for flat roofs with a maximum pitch of 5 degrees. It works well on roofs that have a surface layer of PVC or bituminous material. Regardless of whether the roof has gravel or not, the system can be used. It is a good solution where you do not want to make holes in the roof, for example on buildings with sensitive membranes or where you want to avoid damage to the roof structure.

The most important thing about the system is that it requires no through-penetration fixing. This means that no holes need to be drilled through the roof surface layer. Instead, the system stays in place thanks to the heavy concrete acting as ballast. It is a simple yet effective method, and it provides a permanent lifeline that is always accessible.

Specifications

• Patrol with block
• Maximum number of users: 2
• Type of roof: Plan roof
• Maximum gradient: 5°
• Surface layer: PVC or bituminous material
• Anchorage: Concrete slabs as ballast
• Core drilling in surface layer: None
• Direction of load: 360°

FAQ

Does the roof's waterproofing membrane need to be perforated during installation?

No. PATROL + BLOCK uses ballast for anchorage, meaning no holes need to be made in the surface layer of the roof. This is an advantage if you want to keep the roof intact and avoid damage.

Which roofs are suitable for PATROL + BLOCK?

It is suitable for flat roofs with a pitch of up to 5 degrees and with a PVC or bituminous surface layer. Regardless of whether there is gravel on the roof or not, the system can be installed. It is a flexible solution for many types of buildings.

How is PATROL + BLOCK anchored to the roof?

The system uses standard-format concrete slabs as ballast. They hold the system in place without needing any roof attachments. This makes it easy to install, while also providing secure fall protection.