2007-08-20(copyright) simmons akustik & utveckling ab 20071 calculate sound insulation according...

2007-08-20 (copyright) Simmons akustik & utveckling ab 2007 1

Calculate sound insulation according to national codes and guidelines (e.g. BBR)

and EN 12354 (ISO 15712) using BASTIAN® and the built-in databases

Examples given on how to verify• airborne and impact sound insulation of walls and floors• traffic noise insulation of facades, windows and air inlets


Presentations

1. BASTIAN examples• horisontal insulation from impact and airborne sound

• vertical insulation from impact and airborne sound

• facade insulation from traffic noise

2. Input data, how are the databases constructed ?

3. Can one rely on calculation results ?

4. Background to BASTIAN, the standard EN 12354


Screen in BASTIAN at startup:

1. Calculate horisontal, vertical or facade

insulation? Choose!

2. Room dimensions, click & type !


First, choose how walls and floors are attached to each other (types of junction):

3. Double click and choose junction !


Choose walls and floors from the database:

4. D-click and choose building element !

5. Receiving room data are copied from the source room, may be changed


Choose floorings, linings or suspended ceilings:

6. D-click and choose !

Construction DeltaRw DeltaLw[-] (None)[S] 065 Aprobo Decibel1 (3 mm) + 2,5 mm linoleum mat 0 27[S] 066 Aprobo Decibel1 (3 mm) + 8 mm parquet "Mosaic" glued 3 16[S] 067 Aprobo Decibel2 (5 mm) + 14 mm parquet 2 17[S] 068 Forbo LamiLoc Sordino 10 (incl. impact sound layer) (Not In Use) 2 19[S] 069 Forbo Marmoleum 2 glued to 2.2mm acoustic paper (SP97F33246-1) 0 17[S] 070 Forbo Marmoleum 2/2.5 on Corkment 2 mm 0 14[S] 071 Forbo Marmoleum Acoustic 4 glued (TNO RPT-950056) 0 14[S] 072 Forbo Marmoleum Decibel 3 glued 0 17[S] 073 Forbo Scandilon 2.5 plastmatta, glasfiberarmerad, pvc-skum 0 16[S] 074 GIHA-golvet 15 parkett, 2 lumppapp, 22 golvspån, skruvar på Sylomer(R) 9 27[S] 075 Granab S100 150 (22 parquet or particle board, steel channels, 128 air gap)7 29[S] 076 Granab S100 70 (22 parquet or particle board, steel channels, 48 air gap) 7 27[S] 077 Granab S100G-100: 15 parquet, 22 particle board, flat steel channels, GreenSylodyn-pads, 78 air gap7 29[S] 078 Granab S7000G-100: 15 parquet, 22 particle board, steel U-channels, GreenSylodyn-pads, 78 air gap7 29[S] 079 Hunton Silencio 06, lam/parquet 07 (dL measured NBI O10080, dR estimated)4 19[S] 080 Hunton Silencio 06, parquet 14 (dL measured NBI O10080, dR estimated) 5 19[S] 081 Hunton Silencio 12, parquet 14 (dL measured NBI O9021, dR estimated) 5 16[S] 082 Hunton Silencio 24, parquet 14 (dL measured NBI O9021, dR estimated) 6 18[S] 083 Hunton Silencio 36, paper 2, parquet 15 (dL, dR measured SP /P008701) 7 19[S] 084 Hunton Silencio Thermo 36, paper 2, parquet 15 (dL, dR measured /SP P008701)7 20[S] 085 Nordtest floor (MODIFIED) PVC on polyester. (NT 1346-97). SAU 0 11[S] 086 Nordtest floor. Glued felt. (NT 1346-97) 0 17[S] 087 Nordtest floor. Linoleum. (NT 1346-97) 0 8[S] 088 Nordtest floor. PVC on polyester, v2. (NT 1346-97) 0 11[S] 090 Nordtest, floating floor. Concrete 50, mw 30. (NT 1346-97) 11 28[S] 091 Nordtest, floating floor. Parquet 15, cell plastic 3. (NT 1346-97) 3 17[S] 092 Nordtest, floating floor. Wood, joists, soft board. (NT 1346-97) 6 18[S] 093 SAU chipboard 22 on 30 rock wool (100 kg/m3) (from LTHTVBA3017SG I.3.4, II.1.1)9 23[S] 094 SAU Glass wool 20 mm, fibre/gypsum 19, foam 3, linoleum 3 (from WSP report 777138-2M6)5 22[S] 095 SAU Glass wool 20, fibre/gypsum 19, foam 3, parquet floor 14 (from WSP report 777138-2M5)4 23[S] 096 SAU Parquet 15, PE-cell foam 3. (SAU 50,63,80 Hz, 100-5000 from NT 1346-97)3 17[S] 097 Tarkett EXTRA 2,3mm (dL meas, dR estim SAU) 0 19[S] 098 Tarkett GRANIT ACOUSTIFLOOR 4mm (dL meas, dR estim SAU) 0 15[S] 099 Tarkett NATURA 14 mm ULTRALOC glued 1kg/m2 MS Polymer (dL Tarkett-lab, dR SAU estim.)3 14[S] 100 Tarkett parquet 14 on Cellfoam/Tarkoflex 3 2 17[S] 101 Tarkett parquet 14 on KoC800 (Korkparkolag) 3 1 17[S] 102 Tarkett parquet UltraLoc 12 on Tuplex 3 1 19[S] 103 Tarkett parquet Viva 8,5 on Tarkofoam/TarkoflexLight 2,0 (dL meas, dR calc SAU)1 18[S] 104 Tarkett TAPIFLEX Akustik 3 mm (TX 153 LE) (dL meas, dR estim SAU) 0 20[S] Nordtest floor. PVC on polyester. (NT 1346-97). www.vtt.fi/nordtest 0 8[S] SBUF TSKIKT IV: 16 golvspånskiva flytande på 45 sand (på betongbjälklag). Alt eller brädor eller parkett.7 17[S] SBUF TSKIKT IV: 2 Linoleum på 22 golvspånskiva flytande på 30 sand (på betongbjälklag). Alt brädor eller parkett.7 18[S] SBUF TSKIKT IV: Golvspånskiva 16 limmad mot tvärställd stenull (RW 40mm 100kg/m3), (på betongbjälklag). 12 23


Ready – read of the weighted results:

• R’w (weighted sound reduction index)

• L’n,w or L’nT,w (impact sound)

• Look at frequency curves of direct sound path and flanking paths, with %-contribution per path

• Look at all kinds of weighted values, with spectrum adaption terms listed

7. Read of results !


Vertical sound insulation

• Calculate large rooms – often leading for airborne sound.

Add small rooms with several heavy walls, often leading for impact sound

• Scrutinize designed junctions, choose appropriate models

• Combine different slabs, cast screeds and floorings that comply with the requirements– It may be more efficient to change the screed or slab profile or

number of heavy walls than to add a floating floor, or the opposite…! Keep trying, in a few minutes you have tested a variety of constructions that comply with the requirements.

• Keep an eye on the main transmission paths, improve on the main sound leakages before changing the other constructions.


Calculate sound indoors from traffic etc

Choose outer wall, window, door and air inlet

Choose among a variety of airborne sound sources. Type spectrum for vehicles given according to SS25267 annex D and the Nordic traffic noise calc. model NORD2005

Look at partial transmission (%) for each window, air inlet and wall, as well as outdoor and indoor sound levels. Calculations are made in third octave bands, giving an optimal choice of product. Forget about the C-terms, this handles it all and gives you the A-levels!


Listen to the traffic sounds as being indoors yourself

The computer attenuates the ”original sound” outdoors according to the calculated sound reductions, in each third octave band, and adds room reverberation. To achieve a correct listening impression, auralization must be made at a realistic level just above the background noise of the room where the demonstration is made.

• Choose type of sound source• Choose relevant Worksheet (wall, window etc)• Choose type of listening room indoors• Use A/B-test of 2 worksheets, e.g. to compare subjective effects of changing windows


Manufacturers may now easily advertise their products in our databases, on the basis of well documented tests or

theoretical investigations.

How the BASTIAN-databases are constructed

The databases are distributed quarterly to users in Sweden, Norway, Denmark, Finland and Island, with updates and new products

In cooperation with DB Akustik and SINTEF Byggforsk

Sound insulation for a large number of old, generic constructions have been added with support from the

Swedish research fund SBUF (project 11254)


Step 1 – Advertisement & product data

• The manufacturer: 1. Choose products to advertise in the databases, optionally with

support from an acoustic consultant or a laboratory2. Determine product name designations (names, numbers etc.)3. Send data for each product, as test protocols or theoretical

investigations, showing airborne and/or impact sound insulation (-or improvements). We apply some miniumum requirements on the documentation of the sound properties of the products, cf. www.bastian.nu, /advertise.

4. Attach a picture file of the product (550x550 pxl, 256 colours)5. Add a short information (1-2 rows) on the product, web-link to

product sheets or similar for extended information to users• Send all data for audit and input to the database files • New database files are distributed quarterly to >100 users across

all Nordic countries. We, DB Akustik and SINTEF Byggforsk coordinates the distribution of database files – one input is enough.

http://www.bastian.nu/


Step 2 – input to the databases

• These data are entered:– Category/Product type– Product designation– Picture file name (.JPG)– Sound reduction data, dB– Norm. impact levels, dB– Surface weight, kg/m2

– Coincidence freq. fc, Hz– Thickness, m

• Manufacturers are responsible for their data (we review them)

• In case errors are discovered, updates are distributed without additional costs

• All database versions are stored


Step 3 – appearance in database chooser

• This is how the product may appear when the users opens the chooser tool:

• The databases have products from many countries. A filter facilitates use.

• Generic constructions added to facilitate calculations of old houses, from SAU (us), Nordtest, SBUF, NBI or other open publications.


Step 4 – how calculations are made

• The users double click on the tables or the picture. Selectable constructions are then presented to the user

• BASTIAN then calculates sound insulation and sound levels with respect to spectrum of the sound source and level, construction areas, flanking transmission and the inter-action between the constructions

• The manufacturers do not any longer have to present expected (”realistic”) sound class in the building using their products, since this is always related to the inter-action with the surrounding constructions. Now, the software takes these precautions.

• All calculations made according to SS-EN 12354, SS 25267/-68 and the building codes


Are the calculated results reliable?

• Comparisons with >100 field measurements advice:- keep at least 1 dB margin to req. in SS 25267/-68 - keep at least 3 dB marginal to older req, and 4-5 dB for light floors (depends on type of supporting structures)

• Use only products with well documented input data• Quality of products and construction are critical – errors

and defects are not accounted for in these margins• Read more at www.byggamedprefab.se,

section Akustikhandboken and Akustikguiden• Look at our FAQ, common questions and answers at

www.bastian.nu

http://www.byggamedprefab.se/



BASTIAN version 2.2-2.3 – more functions, easier to use

• implements the EN 12354 standards (parts 1-3), which have revolutionized the building acoustic planning work for consultants

• new models for heavy double walls, e.g. sandwich or brick walls• complies with building regulations (e.g. BBR) • databases contain qualified products that fulfils requirements in the

building, which facilitates changes to ”technically equal alternatives”. This encourages competition among builders, products and systems

• enables estimates of direct sound and flanking transmission, taking all building parts into account

• Weighted numbers do not tell all the truth…Use auralization – listen how it sounds in real life, inside the house!

• Now with network access and databases from several countries

BastianBastian®:


EN-standarder in the BBR regulations

• Building acoustics - Estimation of acoustic performance of buildings from the performance of elements – Part 1: Airborne sound insulation between rooms– Part 2: Impact sound insulation between rooms– Part 3: Airborne sound insulation against outdoor sound

• Input data are laboratory values or field data of building elements, determined according to ISO standardised methods, or by theoretical investigations. We examine all input data prior to publishing.

• The calculation model utilizes well known statistical models, similar to ”heat conduction” models. These models are uncertain in the individual case, particularly at low frequency. The precision is still acceptable, which is continously investigated by comparison to field measurements.

• Calculation results are the same weighted numbers as stated in the Swedish requirements BBR / SS 25267 /-68 (R´w, L´n,w, Cx-terms)


More information

• About BASTIAN and the databases– www.bastian.nu

• Download software demo:– www.datakustik.de

• Read papers (some in Swedish, some in English):– www.simmons.se, link to ”Böcker&Artiklar”

• Contact:– mailto:[email protected]

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http://www.datakustik.de/

http://www.simmons.se/

mailto:[email protected]?subject=Kontakta%20oss%20ang.%20BASTIAN%20(program%20eller%20databasannonsering?)

2007-08-20(copyright) simmons akustik & utveckling ab 20071 calculate sound insulation according...

Documents

vertical sound insulation

original sound

sound properties

w impact sound

type of sound source

main sound leakages

indoor sound levels

db akustik