What is a Drop Seal?
Why do drop seals form an integral part of a building?
Doors play an incredibly important role in the protection of buildings and their occupiers against the dangers posed by fire and smoke damage. In the UK, Building Regulations set out specific requirements which have to be met to protect against smoke ingress and fire penetration.
Small gaps exist around all touching edges of the door to ensure it can function properly. If left unattended, these gaps reduce the ability of the door to resist fire and smoke. In this situation, the PDB drop seal plays an important role as it secures the threshold gap and provide protection at the base of the door.
Unwanted sound transfer can directly impact occupants’ enjoyment and wellbeing within a building. Adequate sound mitigation measures are needed to reduce the noise transfer between rooms. UK Building Regulations set out specific door acoustic requirements depending on the building classification.
The small gaps that exist around a door to enable it to function impact the acoustic performance of the door. Drop seals play an integral role in minimising sound transfer between rooms whilst ensuring the door functionality is not impacted. By selecting the PDB drop seal, the door panel can perform at its specified acoustic rating to ensure occupants enjoyment of the building is not impacted.
Threshold gaps present a security risk on all door sets.
Not until the arrival of the PDB drop seal were security benefits associated with drop seals. As a standard feature, the PDB drop seal secures the threshold gap at the bottom of the door, preventing unauthorised access. In addition, due to the air-tight seal formed by the PDB drop seal when activated, attack from noxious materials can be limited, and even potentially a gas attack.
The importance of conserving energy cannot be overstated.
The PDB drop seal helps support this essential task by ensuring the door set provides reliable and sustainable control of draughts and energy loss. This helps in reducing the energy consumption and carbon footprint of the building.
Threshold plates tend to be obstructive and make access difficult. If the correct drop seal is selected, it removes the need for a threshold plate at the bottom of the door.
With the PDB drop seal, no threshold plate is required. The PDB drop seal complies with all UK, EU, US and international standards for access.
The threshold gap offers an opportunity for pests and vermin to enter the building and/or room. If left unaddressed, this can cause disruption to occupants and a significant health and safety issue.
The PDB drop seal offers a simple solution. When the door is closed, it seals off the threshold gap and effectively locks out any pests. The PDB provides complete protection against insects and vermin.