kelvinh said:
Noise reduction
Im interested in ways I can reduce the outside noise in my home.
I live very near an airport(Kewdale near Perth International), and also on the bus route, which , can make for noisey nights...
Mainly its the airplane noise which is buggin me...
Ive got an oldish brick and tile home... pretty sure it doesnt have insulation.
Im interested in any ideas that may improve the situation, if any are budget concious that would be even better...
Regards
Kelvin
If a person can buy the materials your self the cost is reasonable.
Attention needs to be paid to "gaps" and also increasing the mass .
As to what can be achieved, have u ever gone in to a tilt slab building that is near a main road and notoced how quite it is - why? - the concrete panels are solid concrete 20 cm thick, ( density probably 100 -200 kg/m2) however walls with densitys af 20kg/m2 start to offer reasonable reductions. And tight fitting windows and doors - ie no gaps. Air con to so no need for open doors or windows.
Look at some of the manufactures brochures like companies that sell gyprock in Au. Their are at leasrt 3 companies. The noise abating gyprock works better cause it has a higher density/m2. The brochures , will have tables/systems of different wall/ceiling/floor systems. ie single stud, offset stud etc and give comparison figures.
It is easier to attenuate higher frequencies
From
http://www.science.org.au/nova/072/072key.htm
Careful design within a building can also reduce the effects of noise pollution. For example, if the front of a building is exposed to traffic noise, it makes sense to locate bedrooms at the rear. A garage between the house and the street provides an additional noise barrier.
Quiet buildings
Noise inside a building can be reduced if both the external and internal walls have high sound reduction. Heavy, dense materials such as masonry or brick walls are better for sound reduction, but there are also lightweight solutions. For example, interior walls that have layers of plasterboard with sound-control material in the cavity can be very effective in reducing noise.
Windows and doors are often the weakest link in sound insulation. Double glazing is particularly effective for windows, especially if the airspace between the two panes is as wide as possible. Solid-core doors are best, particularly for those that open on to external areas. All gaps and openings around both doors and windows should be well sealed – >>>>> even the smallest openings can leak significant amounts of noise. <<<<<<<<<<<<
Maybe make your own double glazed windows or replace with fixed windows with thicker 1cm laminated glass. (They are quite expensive to buy ready made.)
http://www.science.org.au/nova/072/072box05.htm
How well a wall insulates sound is measured by the weighted sound reduction index. The minimum allowable value of the index for internal walls in the current building code is 45 decibels (dB). Increasing the index to 55 dB would approximately halve the amount of unwanted sound leaking through a wall.
Also
http://www.science.org.au/nova/072/072sit.htm
http://www.abcb.gov.au/documents/bca_96/outcomes_report_sound_insulation_provisions.pdf
............
Good Residential Design Guide - Your Home - Technical Manual - 5.3 ...
... NEIGHOURHOOD NOISE. Common sources of neighbourhood noise include: Road, rail and aircraft traffic. Air conditioners, refrigeration units. TVs and stereos. ...
www.greenhouse.gov.au/yourhome/technical/fs53.htm
http://www.nohsc.gov.au/OHSInformation/OHSSolutions/noise/SOUNDH.HTM
UNDERSTANDING BASIC ACOUSTICS IS ESSENTIAL FOR DEALING WITH NOISE PROBLEMS
http://www.safetyline.wa.gov.au/institute/level2/course18/lecture53/l53_01.asp
http://www.thisplace.com.au/priceguide/noisepollution.htm#windows Noise Pollution
