The National Civil War Centre. This was a local authority/lottery project in the town of Newark in Nottinghamshire. Some of the existing buildings date back to 1529 and consist of Tudor, Georgian and Victorian periods. The refurbishment of these buildings are of significant importance to the local area and are being used as a National Civil War Museum. These door sets were replicas of existing doors found on site.
With the buildings being upgraded to a museum, security becomes a major consideration. These door sets were designed to replicate the originals while also being brought up to modern standards and fire regulations. The original door sets were re-used were possible but were they required uplifting to fire rated doors or security doors replica doors were required. Some of the existing doors were also covered in fungus so could not be reused.
As stated above some doors were upgraded to security doors as well as fire rated. This becomes an issue when you are trying to respect the existing mouldings and features and keep to the design brief as to bring the doors up to modern security and fire regulations because the section sizes may become too thick. By selecting the correct products this may be achieved. For security a 2mm metal plate was added to the door panels, discussing this with the supplier of the fire products it was advised that a fire rated membrane paper was used to each side of the metal plate, either to FD30 rating or FD60 depending on the location of the door. All fire security/fire doors were fitted with intumescent perimeter seals.
These door sets were all slightly different depending which room they were in. While the hall side had one type of moulding the room sides had different styles. There were also dummy doors sets to match but not fire rated. The door surroundings also had different arrangements, so while the hall side had one type of architrave and pelmet adorned with a simply turned architrave block the room sides had different profiles with a plaster-of-paris rose on its architrave block. Some rooms also had very deep reveals and had ornate panelled linings.
The doors were made from good quality softwood for the FD30 types and Meranti for the FD60 types. To get a good crisp knot free detail hemlock was used for all the softwood panels and Meranti for the hardwood types. The panels were set into 15mm grooves advised by the fire membrane supplier and was made up of the 2mm metal plate with fire membrane to both sides and sandwiched between 6mm Douglas Fir or Maranti timbers panels. This was all to do with the fire testing and certifications. For further assistance with specifying fire products please call Tel: 07932 827749
3 No. Brass butt hinges per door – All ironmongery including hinges and handles were backed with fire membrane paper to stop leakage between spaces. The handles were supplied by the client/main contractor.
The door sets and surrounds were all constructed using traditional methods with full mortise and tenons, wedged using Thixotropic High-Strength Adhesive. The panels were set in 15mm grooves with their own perimeter seal. Intumescent seals were set into the door stile and top rail either to suit FD30 or FD60 requirements. Please check datasheets for required groove required.
Each door set was individually made to suit each location. While some were set in existing door frames others were set in new or modified apertures.
Doors were hung in the frame before delivery we’re possible. All doors and frames were installed by the main contractor.
All doors whether hardwood or softwood are paint finished. All fire doors and surrounds were first applied with one coat of fire protection primer, one coat of undercoat and finished on site to the clients own specification.