diffuser in gypsum board ceiling
diffuser in gypsum board ceiling
(OP)
How is a surface mount diffuser with round flex duct mounted on gypsum board ceiling? I though It mould be screwed through the ceiling flange to the drywall but I was told by the manufacturer this is not so. The celing trim oiece do not have screw holes. The diffuser is the perforated type and the plenum panel behind would interfere with the framing for the gypsum boaed ceiling. Does the mechanical contractor coordinate have to coordinate with the ceiling contractor or does the MC just cut holes in the ceiling and ceiling framing as required? I suppose the MC would have to install the flex duct beforehand before the ceiling is installed. I would also require that the diffuser face panel (which swings down) be locked close with tamper proof screws sice this is for patient room in psychiatric ward. Standard does not require true security diffusers, onlt that they be the perforated type. Makes sense to me because the security type diffusers available have square lattice openings that one can thread a cord through an can pose hanging hazard.





RE: diffuser in gypsum board ceiling
RE: diffuser in gypsum board ceiling
RE: diffuser in gypsum board ceiling
RE: diffuser in gypsum board ceiling
Can gets framed into the ceiling, usually to a joist/truss holding up the ceiling and then a scrap piece in between the joists
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: diffuser in gypsum board ceiling
RE: diffuser in gypsum board ceiling
This is common residentially, pre-made http://www.miamitech.com/boxes.html
Or they can make and insulate a box. Square neck surface mount diffusers screw through the sheet rock into the boxes.
Then frame something across the joist to support a second side of the box.
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: diffuser in gypsum board ceiling