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RE: Foundation drains[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Foundation drains
- From: Harold Sprague <spraguehope(--nospam--at)hotmail.com>
- Date: Wed, 10 Nov 2010 18:57:58 +0000
The issue of blistering of floor surface finishes on slabs on grade is a serviceability issue. And there are specific requirements contained in the building codes. Moisture ingress can cause mold and air quality issues and should not be ignored. A search on the WBDG on NIBS web site will provide very good guidance. Many floor finishes are sensitive to moisture vapor ingress through slabs on grade. I would opt for using a vapor barrier in most situations because it does not cost that much to install and there will probably be changes of use in the future. I would rather have it and not need it than need it and not have it. |
....Back to your initial question. The current IBC-09 requires foundation drains as cited in section 1805. IBC-03, and 06 had it in section 1807. IBC-00 had it in 1806. BOCA 96 had it in section 1813. UBC had some stuff stuck back in the appendix where no one looked. Some measure of moisture control has been around a long, long time.
2009 IBC Section:
1805.1 General.Walls or portions thereof that retain earth and enclose interior spaces and floors below grade shall be waterproofed and dampproofed in accordance with this section, with the exception of those spaces containing groups other than residential and institutional where such omission is not detrimental to the building or occupancy.
Section 1805.4 gets into "foundation drains". So if your floor is below grade, there is no IBC wiggle room. If the floor is at or above grade, you have a lot of wiggle room. This section is a pretty heavy duty hammer contained in the IBC. Since we structural engineers show the slabs-on-grade, we had better show what is written in the the IBC.
By the way, in the legal world this e-mail is "discoverable". Things I have posted on this forum have been presented in real cases. If you have an issue and want to stay under the legal eagle radar, be careful about what goes out on open forums.
Regards, Harold Sprague
Date: Tue, 9 Nov 2010 21:31:43 -0500
Subject: Re: Foundation drains
It appears that no-one knows about such a requirement, but I would really appreciate even negative replies if you can please.
On Mon, Nov 8, 2010 at 9:36 PM, Kevin Below <kbofoz(--nospam--at)gmail.com> wrote:
Joe and Paul, are you aware of any US code requirement for a perimeter foundation drain ? How about Vish in India ?
- RE: Foundation drains
- From: Jeremy White
- RE: Foundation drains
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