I have a question regarding the acoustical performance of a coffered ceiling (Im not sure if this is the correct way to say it). The classroom is about 7m x 9m with a ceiling height of 3m. The coffers are on a cast in place concrete slab, 45cm x 45 cm by 20cm deep. On a school classroom. something like this:
I dont have a good intuition for imagining if the acoustics, but do you think the exposed concrete slab ceiling with will make acoustics better or worse than if it was just a plain gypsum ceiling? This will be a stupid question for an expert on the subject i guess haha
In a classroom you'll also have to provide a decent speech intelligibility (students in the back of the class should be able to understand what the teacher is saying in the front) which can be improved with elements that function as reflection surfaces (e.g. a ceiling cloud).
Classroom: Acoustical performance of coffers?
Hi all,
I have a question regarding the acoustical performance of a coffered ceiling (Im not sure if this is the correct way to say it). The classroom is about 7m x 9m with a ceiling height of 3m. The coffers are on a cast in place concrete slab, 45cm x 45 cm by 20cm deep. On a school classroom. something like this:
http://lh6.ggpht.com/_vOeDc48RqHk/TM3KZxpZQbI/AAAAAAAABs0/OLSbWflm0Qg/IMG_1569_thumb%5B5%5D.jpg?imgmax=800
Just kidding, something more like this:
http://media-cache-ec2.pinterest.com/550x/a0/a7/20/a0a72099071ae483d247279e232ccfae.jpg
I dont have a good intuition for imagining if the acoustics, but do you think the exposed concrete slab ceiling with will make acoustics better or worse than if it was just a plain gypsum ceiling? This will be a stupid question for an expert on the subject i guess haha
thanks in advance!
Sorry my english grammar isnt that great! jana
I don't have an answer but thank you for the LOL from the first link!
Both a concrete slab as well as a gypsum board ceiling are (acoustically) hard surfaces.
To improve the situation you'll probably have with reverberation time (sound absorption and reflection) without covering the waffle-slab ceiling, you could use absorbers like this:
http://www.pinta-elements.com/en/home/competences/architecture/references/project/mortenson-construction-hauptverwaltung-golden-valley-minnesota-usa.html
In a classroom you'll also have to provide a decent speech intelligibility (students in the back of the class should be able to understand what the teacher is saying in the front) which can be improved with elements that function as reflection surfaces (e.g. a ceiling cloud).
You might find this little primer helpful. It adresses a few "acoustical basics". Unfortunately it relates to german codes, but at least it's in english.
http://www.pinta-elements.com/fileadmin/pinta_elements_contents_en/6.0._Footer/The_pinta_Acoustics_Primer_ENG.pdf
(An no, I don't work for this company, I just think they offer a lot of helpful info on that topic ^)
Block this user
Are you sure you want to block this user and hide all related comments throughout the site?
Archinect
This is your first comment on Archinect. Your comment will be visible once approved.