Business

Sound Testing Party Floors in Bedford

We have undertaken hundreds of sound insulation tests on converted properties throughout Bedford and Bedfordshire and in our experience if the floor partition haven’t received any acoustic upgrades – as shown in the image below, they usually achieve approximately 30-35dB for airborne sound and 66-74dB for Impact Sound. Obviously, these figures fall well short of the minimum requirements of Approved Document E, which requires 43dB & 64dB. 

Existing Floor Partitions Rated At Approx. 30dB

Our Acoustic Design & Testing Solution 

Using our many years of experience in building acoustics, we can offer a total acoustic design and testing solution for new and conversion projects. We have previously helped many architect and developers with their acoustic design and testing requirements on projects containing hundreds of units, through to a pair of semi-detached dwellings. Using our experience and knowledge, we always try to provide the best solution considering material costs and on-site buildability. 

If it is a conversion project and you are unsure of the existing floor construction and sound insulation performance, we often recommend our ‘sample sound testing service. Firstly, we visit site and undertake sample sound testing to at least one floor and wall partition – this usually consists of at least one airborne and impact test to party floor. Once the airborne floor sound test results are established, we can then offer a targeted acoustic design solution achieve compliance with Approve Document E.

An acoustic review makes up the 2nd part of our acoustic service. Using the data collected from the sample sound insulation testing we can undertake a targeted acoustic review. We always try to provide an acoustic solution that considers material cost and onsite buildability. We will try to ensure that its an off the peg solution, so that there no further delays and downtime are caused by material deliveries. 

The 3rd part of our acoustic service is the undertaking of site visits. We use the site visit to check that the construction team is installing the acoustic materials in-line with manufacturer’s guidelines. In our experience a sound test failure is often caused by poor workmanship rather than the actual acoustic design. The site survey helps to further reduce the chance of a test failure.

The last part of our acoustic service is the pre-completion sound testing. We visit site and undertake the post-completion sound testing to demonstrate compliance with the acoustic performance requirements of Approved Document E. this allows our clients to attain building control signoff for the acoustic portion of their projects. 

The pitfalls of noise flanking

Sometimes, there are more technical issues such as noise flanking which may require more detailed diagnosis and invasive investigation, such as the removal of some of the wall and floor partitions. In many cases a large amount of noise flanking is due to serious design faults, e.g. the use of lightweight blocks in the construction of the walls in an apartment development. This allows the sound to travel along the walls and floors from dwelling to dwelling. In many cases a wall and/or floor partition may have a very robust acoustic construction within the party floor construction; however, the partition will still fail as the sound is travelling up and down the walls via a noise flanking pathway. 

Typical reasons for a failed sound testing through party floors:

Where lightweight blocks used in the inner envelope construction. This allows sound to travel along the lightweight blocks both vertically and horizontally from dwelling to dwelling.

  1. Bridging an acoustic floor system with skirting, or via screwing down the floor system to the joists.
  2. Resilient bars missing or fitted incorrectly to the underside of the floor joists. 
  3. Excess recessed lights have been fitted into an acoustic ceiling. 
  4. The dividing floor has a lack of mass or acoustic insulation has not been installed correctly, and/or or direct fixing of plasterboard and/or floorboards to joists without using a resilient ceiling construction and/or floating floor.
  5. Through Windows if they are not double-glazed units and/or have secondary glazing as a minimum – this is often a problem if there is a continuous curtain wall running through the dwellings. 
  6. Along structural joints along the perimeter wall and floor joint. These areas should be filled with acoustic mastic)
  7. Structural steels that run through one property to the other without material isolation, i.e. plasterboard is screwed directly to the steel offering little or no noise isolation.

There are many quick and simple solutions to improve the acoustic performance of dividing floor partitions. One of the easiest floor solutions is to retain the existing joists, between the joists install a 100mm RW45 acoustic insulation. Above the joists install 22mm T&G boarding with a layer of 6mm resilient membrane to the top of the board – this must be bonded to the floor. This can then be finished with engineered flooring and/or carpet. Below the joists install resilient bars and below the bars install 1x15mm & 1×12.5mm layers of soundboard. All boards must be properly lapped, and the perimeter joints filled with acoustic mastic. 

How APT Sound Testing can help  

It can be very time-consuming trying to identify the cause of a failed sound test. Therefore, it is always best to hire an experienced consultant. APTs acoustic consultants have years of experience and will advise you on the best course of action to rectify any problems. 

We are also a UKAS accredited company, so you can be sure of a friendly and professional service providing a ‘one stop’ solution for all your acoustic requirements.

APT can advise on all types of acoustic design to help you pass your sound testing to party walls in flats, whether it is accomplished during initial construction or during a refurbishment or renovation project. Whatever the problem we can usually find an acoustic solution that will help you achieve Building Regulation compliance.

We cover the following areas throughout Bedfordshire, including Kempston, Wilshamstead, Great Barford, Marston Moretaine, Ampthill, Biggleswade, Flitwick, Newport Pagnell and Woburn Sands to help you achieve the requirements of Approved Document E and attain building control signoff. 

If you would like more information in regards to sound testing service and/or acoustic design services in Bedfordshire, please contact us on 01525 303905 or info@aptsoundtesting.co.uk, for more information please visit our website at www.aptsoundtesting.co.uk or download our sound test checklist.

Janitorial Solution: Finding an Excellent Business

If you supervise of running a workplace, maintaining it clean as well as well organized needs to be among your top concerns. Usually, this implies employing a janitorial service. Here are some pointers you can utilize to discover that business.

If you are in charge of running a workplace, keeping it clean as well as organized requirements to be amongst your leading priorities. While nothing can outdo business of maintaining your office profitable and effective, don’t undervalue just how vital a clean atmosphere is to satisfying those objectives. To do something such as this, you require to do it properly. Typically, this suggests hiring a janitorial solution. You not just require to locate a firm that can do an excellent task, but you need one you can rely on with the keys to the workplace. Here are some pointers you can use to discover that firm.

Demand Bonding and Insurance

You do not want a contractor of any type of kind on your premises without the proper insurance policy. It’s additionally crucial to ensure the janitorial service is bound, as this can aid safeguard you in the event of a legal action. Simply going the extra mile to secure bonding shows that a firm is serious about their career. Insurance is a must. If a specialist has no insurance, you are taking a risk every time they are carrying out work with your building. You could be placing your entire business at risk.

Durability

Sometimes it pays to take a chance on the new guy. Any person associated with organisation understands this to be real. When you’re checking out a janitorial service, nevertheless, you can conserve on your own a great deal of frustration by making sure they’ve been in business a while. There are two prime factors for doing this. First of all, with age comes experience. You won’t have to bother with a lot of flaky, unprofessional stuff coming up with a firm that has actually been doing this a long period of time. 2, just having actually been around a while shows that they are doing something right. While it’s always helpful to check out evaluations and also referrals, a company can’t remain in company if they aren’t satisfying customers to some degree.

Adaptability

You should not need to bend over backwards to suit a janitorial service. Instead, it should be the other way around. If you are considering employing a firm and also they have actually set times they want to come, just proceed to the following firm. There is way too much competition around for you to need to go for people who think their service is beyond reproach. If you require a firm that can come clean the workplace in the middle of the night keep looking up until you find one that will.