Onsite Acoustic Installation for a Successful Sound Test
Despite contractor’s best endeavours, it’s very difficult to build to the stringent standards of the laboratory. When the construction assembly is tested in the lab, it is after it has gone through an exacting installation technique. The installation is described in detail and followed to the letter, obviously although this should be replicated on site, it seldom is.
On site other issues such as time and programming constraints come into play, that’s why onsite construction often fail sound testing even though the actual design should pass at over 50dB. This is why a 5dB point difference should be allowed between the dB rating of the acoustic solution and the onsite construction. Unfortunately allowances aren’t made for the acoustic performance of the onsite construction then there is a high probability it will fail the sound testing which may lead to expensive remedial works as well as delayed handover.
With onsite construction many other issues often come into play, such as installation of the wrong fixings and missing insulation to name but two. Either of these can easily lead to a sound test failure.
It is very important that installation details are closely followed to ensure that the onsite results are as close as possible to the laboratory.
The following list explains what should be done to achieve Part E compliance:
- If you are installing floating screed ensure all isolation layer joints are overlapped and taped.
- Ensure that the Acoustic floor is fitted with staggered joints.
- Ensure all the Acoustic floor is sealed watertight even around heating pipes.
- Do not nail or screw through an Acoustic Floor.
- Do not screws plaster board into joists, when using a Resilient Bar system.
- Ensure the insulation fills the whole width of void, also pack around pipe work.
- Ensure that the plasterboard on any walls is complete right down to sub-floor, seal all gaps.
- Ensure you use the isolation tape around the wall of each room.
- Ensure plasterboard is fitted with staggered layers and all joints sealed.
- If using Resilient Bars ensure that they are fitted as per manufacturer’s recommendations.
- Ensure all Fireplaces are blocked up with brick or a twin lined plasterboard system.
- Ensure that any RSJ’s or supporting steel work is insulated and isolated from plasterboard.
- Ensure all waste pipe service runs are boxed in with insulation and plasterboard.
- You must fit doors and windows before the test is carried out, to stop noise transference.
APT offer a site survey service to make sure the acoustic elements are being installed as per the manufacturer’s guidelines, if you are worried about passing your sound testing at the first attempt please don’t hesitate to contact us now at: firstname.lastname@example.org or visit our website at: www.aptsoundtesting.co.uk
Business: APT Sound Testing