Ventilation rate

[Sifu]

Looking at IMC t403.3 and/or ASHRAE t6-1, or any other guiding document, does anybody have an idea as to what a "sewing area" be considered when trying to figure out ventilation rates? This is a room where 18 occupants will sit at sewing machines and work.

 

[classicT]

I'd put it as the same as a computer workroom w/out printing. Most comparable use provided.

No like sewing machines emit any vapor or create much dust.

 

[ADAguy]

Does the term "sweatshop" mean anything or working under the lights (hot?).

 

[rgrace]

Does the term "sweatshop" mean anything or working under the lights (hot?).

Temperature control and fresh air are two different things. I would agree somewhat with the computer workroom classification, however there is probably quite a difference in the metobolic rates. Perhaps a mix with that and commercial laundry?

 

[ADAguy]

As opposed to a dry cleaners?

 

[tmurray]

Temperature control and fresh air are two different things. I would agree somewhat with the computer workroom classification, however there is probably quite a difference in the metobolic rates. Perhaps a mix with that and commercial laundry?

I'm wondering if commercial laundry ventilation rates assume additional moisture load that needs exhausted that would not be present in this situation.

 

[ADAguy]

I am more concerned as to offgassing of dry cleaning chemicals that might impact workers.

 

[tmurray]

Looking at IMC t403.3 and/or ASHRAE t6-1, or any other guiding document, does anybody have an idea as to what a "sewing area" be considered when trying to figure out ventilation rates? This is a room where 18 occupants will sit at sewing machines and work.

I am more concerned as to offgassing of dry cleaning chemicals that might impact workers.

Am I missing something? How do you guys sew down there anyway?

 

[ADAguy]

Material floor to ceiling, limited aisles, blocked windows, think Shirtwaist fire years ago.

 

[HForester]

How is a sewing area any different from any other place where people sit and do assembly work? Does sewing release chemicals? Maybe it is a little dusty...but operators could simply just wear masks to comply with OSHA.

 

[Sifu]

I made a site visit and met with the contractor. The use is an open floor where 5 to 7 people will make custom curtains, though I figured my ventilation rate on 18 based on the density. The previous use and existing ventilation exceeded what I think they need based on the what they were doing (using the computer room w/o printing is about the closest thing I could figure) so I am fine with it. Certainly if I thought it would involve dry cleaning, chemicals or a sweat-shop use I would have more concerns but this is none of those things so to them I say have a nice day and I wish them success in their venture.