Smoke control sealant /Specs for ETS requirements

Specification & Product Discussions Sustainable Design Topics
1

Has anyone prepared specs that address the requirements for ETS in residential building? In this case, i am dealing w/ a hotel, concrete floor slabs, and trying to address how the partitions are sealed, and how that works w/ deflection tracks. I assume I need a smoke reated/fire rated sealant at the head of partitions - any suggestions on products?

2

I recommend you consult with an Acoustical Consultant.

To answer your first question (but I am clueless as to what ETS means). Yes. However, drawings may be more important than specifying products.

Are the head-fo-wall joints always exposed to view in the final assembly? If not, consider the FireStik from CEMCO in conjunction with a) Metal-Lite, Inc.; Slotted Track, or b) Sliptrack Systems; SLP-TRK.

At a recent project (30 story condo with concrete frame) 90% of the interior partition head-of-wall terminations at the underside of the slab are exposed to view. Something about the “Loft Look.” The client wants joints without a large exposed sealant joint. The FireStik was nixed for visual reasons. I have some details that I can share that explain the details better than I can describe here. E-mail me at wayne.yancey@callison.com. The exposed surfaces of the concrete slab above were skim coated to provide a smooth white surface.

Wayne

3

I believe ETS = Environmental Tobacco Smoke.

You can use a UL assembly for fire-rated bottom of wall and top of wall conditions, which is required anyway for walls dividing sleeping units in a hotel.

4

Ron:
Do you know if the UL assemblies address the ETS requirements of LEED?

5

Specifically, no.

I’d look at bottom-of-wall joint assemblies starting with BW-S, with “S” indicating a static joint.

For head-of-wall, I’d look for joints starting with HW-D, with “D” indicating a dynamic joint if deflection is expected.

LEED doesn’t give specific strategies for complying with this requirement, but if all joints are sealed, they should minimize ETS. You can require testing of the joints to verify performance by using test methods similar to those used for field testing air barriers.