Anderson phone support was a joke. I won't go into it.

Here's the jamb extensions: http://tinypic.com/view.php?pic=53u72fm

Never used jamb extensions. Extensions ordered separate from window. No
paperwork with them. Anderson window instructions show a page about
installing them. Also some info on Anderson web site. All docs show a
solid flat side on all surfaces. Pic above shows a channel. Does channel
face the RO or the visable side?

If facing the RO, what purpose does it have other than to weaken and
promote splitting when nailed?

If facing the visible side all I can figure is to aid in nailing at an
angle...as well as to weaken and promote splitting when nailed?

If you ask me it will look like crap if it's visable. The channel at the
sill will end up being a collection place for any moisture/condensation.
Window going in bathroom. Inside/outside temp difference can be 90-100
degrees mid-winter. Let's not go off on a tangent about ventalation fans,
opening doors and all that.

Thanks,
Al...

On Jul 9, 10:38 pm, Al Bundy wrote:
Anderson phone support was a joke. I won't go into it.

Here's the jamb extensions:http://tinypic.com/view.php?pic=53u72fm

Never used jamb extensions. Extensions ordered separate from window. No
paperwork with them. Anderson window instructions show a page about
installing them. Also some info on Anderson web site. All docs show a
solid flat side on all surfaces. Pic above shows a channel. Does channel
face the RO or the visable side?

If facing the RO, what purpose does it have other than to weaken and
promote splitting when nailed?

If facing the visible side all I can figure is to aid in nailing at an
angle...as well as to weaken and promote splitting when nailed?

If you ask me it will look like crap if it's visable. The channel at the
sill will end up being a collection place for any moisture/condensation.
Window going in bathroom. Inside/outside temp difference can be 90-100
degrees mid-winter. Let's not go off on a tangent about ventalation fans,
opening doors and all that.

Thanks,
Al...

Google gave me this:

http://www.hammerzone.com/archives/f...ow/andrsn.html

Is this useful?

JK

On Jul 9, 11:38 pm, Al Bundy wrote:
Anderson phone support was a joke. I won't go into it.

Here's the jamb extensions:http://tinypic.com/view.php?pic=53u72fm

Never used jamb extensions. Extensions ordered separate from window. No
paperwork with them. Anderson window instructions show a page about
installing them. Also some info on Anderson web site. All docs show a
solid flat side on all surfaces. Pic above shows a channel. Does channel
face the RO or the visable side?

If facing the RO, what purpose does it have other than to weaken and
promote splitting when nailed?

If facing the visible side all I can figure is to aid in nailing at an
angle...as well as to weaken and promote splitting when nailed?

If you ask me it will look like crap if it's visable. The channel at the
sill will end up being a collection place for any moisture/condensation.
Window going in bathroom. Inside/outside temp difference can be 90-100
degrees mid-winter. Let's not go off on a tangent about ventalation fans,
opening doors and all that.

That channel - actually more of a culvert - is to facilitate nailing
from the back side. The culvert - really more of an angled face with
a relief cut - faces the framing, so it's hidden. That angled face -
really more of a channel - facing the inside of the room, allows you
to start the nail easily.

Extension jambs can be attached to the window prior to window
installation, but that presents problems with extension jamb depth if
there is any discrepancy in wall thickness. If the extensions are
attached after window installation, it's pretty tough to get a nail
started in the narrow space between the framing and the side of the
extension - particularly since the nail is at such an angle to what
would normally be a flat face of an extension jamb.

It's really not all that necessary in my mind as I typically pre-drill
anyway and start the nails before I put the extensions in place. I
also usually don't use store-bought extension jambs.

R