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RE: footing - frost depth

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Kevin & Daryl,
That is the storey I was given on Wednesday on one of
my jobs.  I am still looking into it.
Gary

On 23 Mar 2006 at 11:38, Kevin Below wrote:

> I've used extruded foam also, but I have heard recently from an
> architect that its long-term properties in wet soil may not be very
> good.  It may lose its insulating value.  I haven't been able to
> confirm.  Anyone have any news on that ?
> 
> 
> 
> Kevin Below
> 
> 
> -----Original Message-----
> From: Daryl Richardson [mailto:h.d.richardson(--nospam--at)shaw.ca] 
> Sent: 23 mars 2006 11:17
> To: seaint(--nospam--at)seaint.org
> Subject: Re: footing - frost depth
> 
> 
> Gary,
> 
>         This must be a regional thing.  I've used Styrofoam insulation 
> several times to insulate footings against frost action.  Here in
> Calgary an 
> engineer's stamp is required if the footing is not below frost depth;
> but 
> other solutions are allowed.
> 
> Regards,
> 
> H. Daryl Richardson
> 
> ----- Original Message ----- 
> From: "Gary Hodgson & Associates" <ghodgson(--nospam--at)bellnet.ca>
> To: <seaint(--nospam--at)seaint.org>
> Sent: Thursday, March 23, 2006 6:02 AM
> Subject: Re: footing - frost depth
> 
> 
> > Jim,
> > Out of curiosity, what are the other methods allowed by
> > your code?  Up here, the municipal authorities only want
> > to see the footings below frost level, so you have to do
> > a lot of dancing.
> > Gary
> >
> > On 22 Mar 2006 at 14:11, Jim Wilson wrote:
> >
> >> The IRC states "...foundation walls, piers and other permanent 
> >> supports
> >> of buildings and structures shall be protected from frost by one or
> more 
> >> of the following methods:  1. Extending below the frost line..."
> >>
> >>   Subsequently, the bottom of footing must be set at or below the 
> >> frost
> >> line.  Some engineers and architects detail the top of the footing at
> 
> >> frost line.  It's my guess that this is an older-school approach.  I
> say 
> >> that only because I have seen it on older drawings, not in common 
> >> practice.
> >>
> >>   For sloping grades, the footing depth needs to be measured
> >> perpendicular to the slope.  This could increase the vertical depth.
> >>
> >>   Jim Wilson, PE
> >>   Stroudsburg, PA
> >>
> >> IRV FRUCHTMAN <ifaeng(--nospam--at)yahoo.com> wrote:
> >>   Dave
> >> I thought the bottom of the footing is placed at or
> >> below the frost depth.
> >> Irv
> >>
> >> --- David Topete wrote:
> >>
> >> > List:
> >> > Can someone give me a brief summary of foundation
> >> > design (or detailing) with regard to frost depths
> >> > noted? Do I basically place the top of spread
> >> > footing at or below the frost depth? from finish
> >> > grade?
> >> > A reference would be just fine also. I rarely
> >> > design for wind, snow, or frost, but there's a first
> >> > for everything...
> >> > Thanks in advance.
> >> > DT
> >> >
> >> >
> >> > ---------------------------------
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