[Bldg-sim] FW: insulation hot humid climates

[Paul Grahovac]

Aushim

 

  <http://en.wikipedia.org/wiki/File:Solarchimney.jpg> 

 

You might consider a solar chimney.  
http://en.wikipedia.org/wiki/Solar_chimney 

 

You would want to minimize air leakage in the building envelope to
maximize the draw of cool air from underground.

 

I think I've seen configurations where there is no actual chimney, but
rather a chimney effect is realized by a vent located in the top of the
wall across the room from the vent from the underground.  (Same as shown
above, but with no actual chimney constructed on the outside of the
building.)  Since you will have a metal roof, you should have a lot of
hot air at the ceiling that will ventilate when the cool air vent is
opened on the floor thus cooling the room.

 

Paul Grahovac, LEED AP

Product Manager 

R-GUARD Air & Water-Resistive Barrier 

PROSOCO, Inc.

3741 Greenway Circle

Lawrence, Kansas  66046

(785) 830-7355

(888) 376-3417 fax

pgrahovac at prosoco.com

web site  http://www.prosoco.com/

 

 

 

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of P. Hay
Sent: Thursday, February 25, 2010 12:50 PM
To: 'Bldg-Sim'
Subject: [Bldg-sim] FW: insulation hot humid climates

 

Subject: RE: [Bldg-sim] insulation hot humid climates

 

Hello Aushim,

 

I suspect Bangladesh has a tropical monsoon climate, which I don't have
any information for.  But, prescriptive requirements for the tropical
island location of Kingston Jamaica are as follows:

 

WALLS:                 No. insulation, if solar absorptivity < 0.7

WINDOWS:         clear glass with internal blinds, Window-to-Wall ratio
< 0.35

ROOF (metal):   (a) No skylights, U-value = 0.12 Btu/hr-sq-ft-degF,
solar absorptivity < 0.7; or

                                (b) Skylights with U-value = 0.8
Btu/hr-sq-ft-degF, 2% of roof, 

opaque roof U-value = 0.09 Btu/hr-sq-ft-degF, solar absorptivity < 0.45

 

Best regards,

 

Paul Hay BA(Arch.), Dip(Bus. Admin.)

 

Managing Partner

PAUL HAY Capital Projects

 

Strategic Facility Planning and Implementation

 

   

 

P. O. Box 3367

Kingston 8

Jamaica, W.I.

 

tel: 1 (876) 756-0631

cel: 1 (876) 324-4274

fax: 1 (876) 756-0631

 

web: www.phcjamaica.com

e-mail: paul.hay at phcjamaica.com

skype name: phcjam

profile: www.linkedin.com/in/phcjam

twitter: www.twitter.com/phcjam

 

 

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of leen
peeters
Sent: Monday, February 22, 2010 04:20 AM
To: bldg-sim at lists.onebuilding.org
Cc: Aushim Koumar
Subject: [Bldg-sim] insulation hot humid climates

 

Dear all,

 

for a student project, we are studying the options for improving the
thermal comfort in a hospital located in Bangladesh. The aim is to use
as much cheap and local materials as possible.  

They currently use simple metal non-insulated constructions. We will go
there and build a extension to an existing hospital. The idea is to use
bricks for the walls, wooden doors and single glazing. However the roof
remains in metal. We have a small budget for improving the indoor
climate, however have no experience in insulation in these climates.

 

We would appreciate anyones help; references to reports, publications or
some usefull advice.

 

Kind regards,

 

Aushim 

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