Security doors and physical security in Cambridge

Research laboratories need controlled airflow through rated louvres; historic colleges need protection that listed-building officers will accept. Both get rated security doors, windows, laboratory protection and specialist shielding, supplied and installed across Cambridge by ArxBridge.

• LPS 1175 SR2 to SR5Doorsets for labs and colleges
• LPS 2081 SRBStealth attack, three minutes
• Shielding measured in dBRF rooms and Faraday cages
• LPS 1270 glazingAttack-rated glass units

Laboratories and science parks

Cambridge’s research estate holds wet laboratories, clean rooms, containment suites and data halls, and the doorsets serve two masters: security and air control. LPS 1175 security doors rated SR3 (C5), five minutes against crowbars, drills and chisels, protect lab corridors and stores, while attack, blast and gas protection products, including gas-tight doors, suit facilities that handle hazardous materials. Where instruments are sensitive to interference, electromagnetic and RF shielding is specified by attenuation in dB over a frequency range, and testing and surveys verify the installed performance. The utilities and energy page covers similar controlled environments; for labs the closer reference is how containment and security ratings are combined in one specification.

Ventilation with a rating

Laboratories need constant airflow, and the vents are often the weakest point. Steel louvred doors give ventilation with a security rating, and ballistic louvre doors add ballistic protection to ventilated openings where the threat assessment calls for it. Fire rated louvre doors at E 60 and E 90 ventilate plant rooms that need fire integrity. The fire ratings guide explains E, EW and EI classifications for specifiers combining fire and security.

The colleges and heritage planning

The historic colleges are among the most protected buildings in the country, and almost all work needs listed building consent. Security sash windows and security windows rated to LPS 1175 are made to suit centuries-old openings, LPS 1270 security glazing gives attack-rated glass behind historic masonry, and vacuum insulated glass fits slim traditional frames. Porters’ lodges and accommodation courts take communal entrance doors at SR2 (B3), three minutes against hand tools, designed to suit the setting. We manufacture to surveyed sizes and supply the drawings and rating evidence that support consent applications.

Cambridge buildings at a glance

Airflow and security are specified together. On laboratory projects, agree the ventilation, containment and security ratings for each opening before the doorsets are ordered.

How projects run in Cambridge

ArxBridge supplies and installs across Cambridge, from science park campuses to the historic centre. The process runs assess, specify, manufacture, install and maintain: we survey the openings, agree the ratings with your team and the lab managers, manufacture to size, and fit the work in phases that keep research and teaching running. The design and installation services cover the full programme.