Hello everyone！We here are Office recovery and restoration Dot.Com. website.
We are an interior decorative work contractor, professionally taking charge of「Interior decorative construction work」「Recovery and restoration construction work」mainly at Ikebukuro, and all over Kanto district for you.
This time, we are roughly explaining here a theme of,
What is sound absorbing board? Difference from sound insulating board.
Last time, we wrote down and uploaded a theme of,
Office sound insulating measures, from simple things up to necessary to execute interior decorative construction work.
This time, we are explaining a board material called sound absorbing material a little more in detail from it.
What is sound absorbing board?
Generally, among board materials, the term of sound absorbing board is described as a kind of material, whose sound absorbing performance is emphasized. There are variety of kinds of it.
Basically, as we wrote down and uploaded in this website last time, this board material conforms to sound absorbing property, so in often cases, 「it is porous(quality material of countless holes opened on the surface and inside)」.
In order to make occurred sound around difficult to leak, sound absorption and sound insulation are crucial.
Between the two, sound absorbing board is especially excels in sound absorbing property.
Kinds of sound absorbing board(a part of example kinds)
- ●Porous board
- ●Sound absorbing gypsum board
- ●Rock wool sound absorbing board
- ●Glass wool board, GC board
- ●MG board
Porous board
Porous board is, a board material whose holes are opened on plywood including veneer.
You might have ever seen one at school music room or so.
Picture of porous board sticked at music room.
Quoted from Picture ac
It is off the subject, however, as porous board is sometimes hooked to be used for storage, it is also called 「peg board」overseas.
Sound absorbing gypsum board
Same as porous board, as for sound absorbing gypsum board, countless holes are opened on surface of gypsum board, which is a gypsum board of enhanced sound absorbency.
Although its holes are not regularly opened as porous board, gypsum board itself has sound insulating property, it is highly valued for soundproof measure.
Same as this, it is not easy to occur expansion or crook for humidity, and inexpensiveness is its feature too.
Rock wool sound absorbing board
Rock wool sound absorbing board is a board material mainly used for ceiling, whose material is rock wool, and holes are opened in unregular pattern on the surface.
Its incombustibility is also high, so it can be said a typical sound absorbing board material.
Reference : On difference between gypsum board and rock wool sound absorbing board.
On difference between gypsum board and rock wool sound absorbing board
Glass wool board, GC board
Literally, glass wool board is, a board material processing glass wool as flat board.
Its heat insulating property and incombustibility are high, so it is also used for roof bedding and wall bedding.
A product called Para board which is manufactured by Paramount Glass Industry Co. Ltd., Japan, is a main product.
GC board is, a board material which is covered by abovementioned glass wool board with glass cloth (cloth weaved by glass fiber). Its type is enhanced in designability and durability.
MG board
MG board, is a board made by rock wool to which thermosetting resin is added, then processed as state of board, which resembles glass wool board・GC board.
Its feature almost resembles each other too. As for sound insulating property, it seems that MG board is better numerically (In the case of comparing with the same thickness).
Apart from this too, as it is not a board material, however, there exists a product called sound absorbing panel.
If you say that you would like to reduce sound leakage at meeting room or so, but cannot execute large-scale construction work, this product may be helpful and worth considering to try it, as it can be made only by sticking existing wall surface with magnet, double sided tape or so, then it can reduce sound echo.
Difference from sound insulating board
Sound insulating board is, a board material generally laminated with vibration controlling mat on plywood or gypsum board, whose product is strengthened from originally existing board material. It is often double sticked with regular gypsum board too.
Besides, there is a kind of sheet called sound insulating sheet to stick between bedding material and board material too. It can upgrade sound insulating property of board material.
Sound absorption is said to be , absorbing sound and transferring it to heat energy.
While, sound insulation is, a mechanism of insulating sound and in order not to emit sound from inside space to outside.
Essentially, as measurement to sound, the both mechanisms are different. Because the both are necessary, as for building, the both are basically executed construction well balanced and according to its requirement.
As basic requirement, to the place where sound isolation property and sound absorbing property are required, light gauge steel or wooden axis bedding material＋glass wool or so heat isolating・sound absorbing material＋gypsum board are supposed to be executed construction work. According to other requirement・case, abovementioned sound absorbing material and board material double sticking or so are carried out.
Summary, finally
We so far explained What is sound absorbing board? Difference from sound isolation board.
Although it may be our rough contents, if our above explanation should help you somewhat understand what kind of sound absorbing board materials there are, then we would be very happy.
In case of considering sound insulating measure for removing, renewing or so on, if you refer to this article, or to consult our company, we will be very happy.
If you happen to have relative troubles or consulting, please call on us light heartedly.
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Let alone office・shop or store ceiling or wall repair work, painting work, on newly opening of shop or store, or renewal, please be sure to consult Office Dot.Com. light heartedly by all means.
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