When raising the upper deck of a Lifting Deck trailer, any over-height load placed on the deck can come into contact with the internal roof surface. If undetected, this may lead to structural damage and unscheduled repair downtime.
The infra-red roof protection system provides an additional safeguard during deck lift. It projects an invisible infra-red beam across the internal roof space. If the beam is broken while the deck is rising, the system interrupts the lift operation.
Two sensors are typically mounted at the front and rear of the trailer interior. Together, they monitor a consistent detection plane across the width of the upper deck area.
Operators must always visually confirm load height before raising the deck. This system is an additional safeguard and not a substitute for correct loading practice.
The purpose of this system is to help reduce the risk of accidental roof puncture, protect interior structure and minimise downtime associated with repair.
The example below illustrates how an over-height load (a toy giraffe in this instance) could make contact with the roofskin if the upper deck is raised to full height without detection.

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What does the infra-red roof protection system do?
It projects an invisible infra-red curtain across the roof area of a Lifting Deck trailer. If an over-height load breaks the beam while the deck is being raised, the system automatically stops the lift to help prevent roof puncture.
Where are the sensors installed?
Two sensors are usually positioned at the front and rear of the trailer interior. Together, they span the width of the trailer to detect objects extending above a safe load height.
Does the system affect normal loading operations?
No. The infra-red curtain is passive during loading. It only interrupts the deck lift when the beam is broken.
Is this system suitable for any trailer type?
It is specifically intended for Lifting Deck trailer designs where the upper deck moves vertically towards the roof space. It is not used on fixed Double Deck trailers.
Why might an operator choose this system?
It provides an additional check during deck lift to help reduce the risk of accidental roof puncture caused by over-height loads.