We work on a very diverse range of architectural projects.
Use the following links to highlight a selection of the projects we have completed.
- Entertainment Venues
At PDA we use CATT Acoustics to quickly and efficiently predict the acoustic behavious of rooms. This can include churches, theatres, lecture theatres, libraries, offices, sports halls and all types of performance spaces.
Like many other acousticians we have found that CATT Acoustics has some of the best algorithms for handling the more difficult aspects of room acoustics.
The hallmark of our legal service is rigorous investigation, pragmatic application of our considerable knowledge, and clear and concise presentation.
- Public Entertainment Licences
- Liquor licences
- HGV licences
- Noise nuisance cases
- Noise induced hearing loss
- Vibration White Finger
Air Tightness Testing
Air tightness testing is a non-invasive and cost effective technique to assess an important part of domestic energy efficiency. Draughts are unnecessary ventilation and will reduce occupant comfort levels.
Furthermore, these can account for up to 20% of domestic heat loss and up to 30% of a commercial buildings heat loss.
The current industry generation is now well practiced at understanding the “A to G” ratings when using EPC’s under the EU Energy Performance Buildings Directive.
The use of ratings and levels from white goods to energy of buildings is indelibly printed in our mind sets and normal thinking.
The services are an important part of most buildings, and controlling the noise and vibration associated with them is essential in achieving an acceptable environment.
- Baseline environmental noise surveys
- Specifications to meet internal noise criteria
- Design of the mechanical services
- The control of structure-borne noise and vibration
- Diagnostic investigations
When a new development or project is being considered, environmental noise will always be considered by the Local Authority.
- Environmental noise surveys
- Outline assessments and initial options
- Detailed acoustic modelling and reports
- Noise control design and project management
- Technical support
- Commissioning Survey of the completed development
Ground Borne Vibration
The perception of ground borne vibration within a building often raises concerns about the potential for building damage, be this cosmetic or structural. In the majority of cases the levels of vibration necessary to promote building damage would make continued occupation of the building intolerable.
- Ambient vibration surveys
- Interpretation of the results of surveys
- Provision of advice
- Provision of detailed specifications
The Control of Noise at Work Regulations, 2005′ is quite clear as to the requirements and duties placed on employers with regard to the noise in their factories.
In conducting a risk assessment, we measure the levels of noise to which workers are exposed.
The Control of Vibration at Work Regulations 2005 (CVAWR 2005), Hand-Arm Vibration (WAV) & Whole-Body Vibration (WBV) Assessments.
PDA is able to measure the vibration employees are exposed to and then ascertain their exposure level in accordance to CVAWR 2005 procedures. Advice and guidance can then be given on how to reduce employee’s exposure to vibration where appropriate.
The starting point for all building projects is to obtain planning permission and this involves an environmental noise survey.
An environmental noise survey together with recommendations for noise mitigation from a qualified acoustic consultant will be used in the determination of planning applications for residential or other noise-sensitive developments that will be exposed to existing noise sources.
Sound Insulation Testing
In 2003 the Building Regulations changed with the introduction of mandatory testing of 10% of all new attached homes whether new build, conversions or rooms for residential purposes.
Builders now have to provide the Building Control Body with evidence of the sound insulation actually achieved in the dwellings. Builders and developers may also require evidence that sound insulation meets the requirements of BREEAM.
Sound Power Evaluation
PDA are able to test emitted noise levels from machinery/equipment and evaluate its Sound Power Level (Lw) to a variety of commonly requested standards and procedures including:
- BS EN ISO 3744:2010
- BS EN ISO 3746:2010
- EEMUA 140
- General Requirements of SI 2008 No. 1597
- Various other specific noise testing standards upon request
Soundscape represents a paradigm shift from noise control policies towards a new multidisciplinary approach as it involves not only physical measurements but also humans and social sciences with a focus on how people actually experience an acoustic environment in context.
Soundscape is defined as ‘the acoustic environment as perceived or experienced by and/or understood by a person or people, in context. Much has been debated in recent years about exactly what ‘context’ is in the light of BS4142:2014.