Safety has always been a top priority of The Safety Letterbox Company, which led to its collaboration with Warringtonfire, a global testing, inspection and certification company. This enabled SLB to design and manufacture the very first Fire Rated mailboxes on the market in January 2003, assessed to the BS 476 Part 22: 1987 standard.
SLB’s Fire Rated range consists of three steel Fire Rated mailboxes (FR1, FR2 & FR3), which have all been assessed to BS 476 Part 22: 1987, thus achieving a 60-minute fire rating. However, SLB wanted to push this even further, and in October 2019 all three fire rated mailboxes were tested for 120 minutes (2-hours integrity only) to comply with the new BS EN 1363-1:2012 standard.
In October 2020, further testing continued as theses mailboxes were tested as large banks instead. They were tested as wall-recessed, through-the-wall and surface-mounted. In order to simulate a fire, the backs of the mailboxes were removed, and the mailboxes were placed in a furnace and subjected to a temperature of 1030 degrees centigrade for two hours.
The test was concluded at 135 minutes with no failings. It established how all three models, banked or single, would behave in a fire situation for over two hours to hold back or contain fire. Critically, this allows for safe passage during an evacuation if positioned within a fire escape area, whilst retaining their integrity!
Following the physical tests, the report by Warringtonfire details the fire resistance performance of FR1, FR2 & FR3 steel mailboxes when installed in banks of multiple units or in single units in or on masonry walls, plasterboard walls and free standing in a room. These were tested in accordance with BS EN 1363-1: 2012, with additional guidance of BS EN 1634-1: 2014 + A1: 2018. SLB are able to offer advice on the installation and fitting of their mailboxes to ensure due consideration is placed on their appropriate handling on site.
Alison Orrells, Managing Director at The Safety Letterbox Company, said: "Our further investment in testing demonstrates we are fully committed to ensuring our market has a quality product that firmly contributes towards ensuring the building is safe for the occupier. As British manufacturers, we believe we all have an obligation to ensure products are tested, assessed and certified for our market, and our commitment to R&D is un-wavering.
“As the first company to design and produce a Fire Rated mailbox, over 18 years ago, we have since continued to expand and develop the range to ensure 2-hour Fire Rated mailboxes are available and tested as singles and banks. A full assessment has been produced in conjunction with Warringtonfire based on their incorporation into the built environment.
“This approach firmly fits with the ‘Building a Better Future’ framework, ensuring consideration is given to all aspects of a build. Our customers can be sure that they are purchasing a fully tested product with support and guidance on its use from a respected and established British company”.