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RE: Aluminum Stairs

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The aluminum design manual is for the specification of aluminum "STRUCTURES"
design, I suppose the flashings and sidings are architectural and not meant
to outlast the structural members, or at least not have the material
integrity requirement as critical as the "structural" members.

Yi Yang

-----Original Message-----
From: jpriley485(--nospam--at)peoplepc.com [mailto:jpriley485(--nospam--at)peoplepc.com]
Sent: Wednesday, August 08, 2001 12:49 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Aluminum Stairs



Gee, don't we use aluminum flashings and aluminum siding in contact with
wood?
JPRiley


-----Original Message-----
From: YI [mailto:YI(--nospam--at)summit-sr.com]
Sent: Wednesday, August 08, 2001 12:03 PM
To: 'seaint(--nospam--at)seaint.org'
Subject: RE: Aluminum Stairs



I have a copy of the 1994 edition aluminum design manual, in section 6.6.1,
part b, it states:

"Aluminum shall not be placed in direct contact with wood, fiberboard or
other porous material that absorbs water and causes corrosion.  When such
contacts can not be avoided, an insulating barrier...shall be installed.
Aluminum surfaces shall be given a heavy coat of alkali resistant bituminous
paint or other coating providing equivalent protection before installation.
Aluminum in contact with concrete of masonry shall be similarly protected in
cases where moisture is present and corrodents will be entrapped between the
surfaces."

There is another part (part c) that talks about aluminum embedded in
concrete.

Hope this helps.

Yi Yang
Santa Rosa, CA






-----Original Message-----
From: Jones, Mark A [mailto:Mark.A.Jones(--nospam--at)jacobs.com]
Sent: Wednesday, August 08, 2001 6:50 AM
To: 'seaint(--nospam--at)seaint.org'
Subject: RE: Aluminum Stairs




> -CanitzCF(--nospam--at)aol.com [mailto:CanitzCF(--nospam--at)aol.com] wrote:
>
> My concern is the leg (or any other part of the structure) which bears
upon the concrete. Isn't this a no-no?

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