Acoustic Doors
Sliding or hinged, 25db up to 55dB, excellent aesthetic finish.
Our Acoustic Rated Doors are supplied as an entire unit – door frame, door blade, hinges, automatic threshold seal (if applicable). Strong, durable construction. All doors are factory assembled and tested for correct alignment and fit.
Dortek manufacture and install a range of Acoustic Doors
- AK -Acoustic Hinged Non Fire Rated GRP doors – up to db30
- AF – Acoustic Hinged Fire Rate GRP doors – up to db35
- ASL Acoustic Hermetically Sealing Sliding Doors
- 40db
- 45db
- 50db
- ASLF – Acoustic Fire Rated Hermetically Sealing Sliding Doors
- 55db/60 minute fire rated (EN 1634)
Our Acoustic Rated Doors are supplied as an entire unit – door frame, door blade, hinges, automatic threshold seal (if applicable). Strong, Durable construction. All doors are factory assembled and tested for correct alignment and fit.
The figures in these tables represent the “average” decibel reduction from the noise source side of the doorset to the opposite, and apply to both hinge side to frame side and frame side to hinge side.
The following doorblades were tested in a GRP frame with a standard firtree seal in the doorstop and an automatic seal at the bottom of the door.
| Door type | Results achieved |
|---|---|
| Standard K Type GRP door | 25 decibel reduction |
| Lead lined K Type GRP door | 34 decibel reduction |
| Standard F Type GRP door | 29 decibel reduction |
| Lead lined F Type GRP door | 35 decibel reduction |
The following doorblades were tested in a STAINLESS STEEL frame with seals surface mounted onto the doorstop and an automatic seal at the bottom of the door.
| Door type | Results achieved |
|---|---|
| Standard K Type GRP door | 23 decibel reduction |
| Lead lined K Type GRP door | 30 decibel reduction |
| Standard F Type GRP door | 27 decibel reduction |
| Lead lined F Type GRP door | 32 decibel reduction |
As the doorset is tested through a range of frequencies from low to high, “average” is the figure across the full range of frequencies. Dependent on a particular frequency of noise, the decibel reduction capability of the doorset may be greater.
Applications where Dortek Acoustic Doors are used
Hinged GRP Acoustic Door
- Hospitals
- Laboratories
- Plant Rooms
Sliding Acoustic Doors
- Lecture Theatres
- Recording/Br Studios
- Conference Rooms
- Test Cells
Specifying Sound Reducing Doors
- In designing and specifying with sound reducing (acoustic) doors, it is important to consider the average db rating rather than the maximum db rating.
- For example a 45db door will have an average of 45db of sound reduction on several frequencies. The maximum db rating of the same door is probably closer to 55db at 4000Hz.
- In real life conditions there will always be “flanking”, which is room-to-room sound transmission caused by vibration. It always depends on a particular situation but allow up to 3db.
- Obviously, the db rating of the wall/panel construction should always be at least that of the door for the overall acoustic solution to be effective.