[Equest-users] Suspended Ceiling Tiles as Insulation?

[Bishop, Bill]

Omer,

If the air gap is not being used as a ceiling plenum then I think you
could justify adding the air gap and ceiling panels to your roof
construction layers. I doubt it will affect the energy performance much.
You could create a new roof construction and compare the two with
parametric runs to find out.

Regards,
Bill

William Bishop, EIT, LEED(r) AP | Pathfinder Engineers & Architects LLP
Mechanical Engineer

134 South Fitzhugh Street
Rochester, NY 14608
T: (585) 325-6004 Ext. 114
F: (585) 325-6005

wbishop at pathfinder-ea.com
www.pathfinder-ea.com

P Please strive to live sustainably.

-----Original Message-----
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of
omoltay at mimtarch.com
Sent: Saturday, January 23, 2010 7:06 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Suspended Ceiling Tiles as Insulation?

Dear All,

In the building that I am modelling, corrugated metal roof is insulated
from below with glasswool. Below the glasswool, Armstrong rockwool
ceiling
panels are suspended with a small gap (20-30 cm.). All ducts, pipes and
HVAC equipment are located below the suspended ceiling. Do you think the
ceiling panels can be considered extra insulation and be taken into
account when calculating the U-value of the roof construction? What
about
the air gap in between?

Thanks,

Omer Moltay, LEED AP
Mimta Ltd.

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