How to attach jamb extensions??
Last Post 07 Jul 2014 12:31 AM by ba_icf. 12 Replies.
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pbraneUser is Offline
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05 Jun 2014 03:30 PM
I'll be using Marvin Integrity windows, and then adding wood jambs to fit my thick walls. The problem is that the factory jambs come with the edge rounded over. Trying to think of best way to add 3/4" thick pine or poplar without a lot of milling/routering. Anyone else been thru this? Thanks, -michael
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05 Jun 2014 09:28 PM
I put a reveal on the jamb extension instead of trying to make a flat surface. Even with an eased edge on the factory jamb it looks appropriate, and is more forgiving to install. A lot of window manufacturers do this to go from 4 9/16 to 6 9/16.

If you insist on a seamless look you can add a jamb extension flush to a factory jamb then clad over both with veneer or 1/4" veneered plywood. A casing reveal complicates matters a bit because of the plywood core, when doing this I've opted for no reveal casing or used a rip of 1/4" solid wood at the casing edge. Paint grade makes this a bit easier.
pbraneUser is Offline
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06 Jun 2014 08:05 PM
I had thought of using 1/2" plywood and not trying to get a "seamless" look. Or maybe some sort of thin, wide molding to cover the joint. Or I may stay with 3/4" stock, and back-cut it so it covers the rounded top edge of the factory jamb.

Thanks for your input.

-m
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07 Jun 2014 09:07 PM
The seamless look is almost always a mistake. It's hard enough to get a good appearance with a reveal. You can do multiple reveals and have it look okay on wide windows and doors.
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11 Jun 2014 11:01 AM
I prefer to do the attaching with pocket screws, although I was unable to find any experienced finish carpenters who could even figure this out.  They really like to use the built-up shim method.

Here is an image of a wide jamb.  You can clearly see the narrow attached window jamb and the additional reveals.

Note the granite window sill, as well.


pbraneUser is Offline
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11 Jun 2014 11:10 AM
Hi..

Yes, I was planning on using pocket screws as well. So I guess the jambs will be attached (by me) before the window go in..

I like the granite...nice touch!

Thanks
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11 Jun 2014 05:30 PM
I like the granite...nice touch!
Giant, wide sills on ICF. You know they are going to be used for plants and sitting, so might as well make them functional.
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12 Jun 2014 02:05 PM
Did you find that real granite was less costly than synthetic granite such as Cambria, Silestone, etc.? If the cost was close, I would prefer to use synthetic granite because of its better properties.
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Construction Technology Consultant -- E-mail: Alton at Auburn dot Edu Use email format with @ and period .
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12 Jun 2014 10:32 PM
Some granite is very affordable. It helps to choose by price instead of getting your eye set on something you saw and thought was fancy. We liked the colors of "Uba Tuba" for this home. I think I paid less than $10/sf for the stone in slabs despite the installers claiming that their cost was from $30 - $50/sf. At that price, I suspect it is much less expensive than the synthetics. We used it everywhere.
ba_icfUser is Offline
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13 Jun 2014 02:45 AM
Posted By ICFHybrid on 12 Jun 2014 10:32 PM
Some granite is very affordable. It helps to choose by price instead of getting your eye set on something you saw and thought was fancy. We liked the colors of "Uba Tuba" for this home. I think I paid less than $10/sf for the stone in slabs despite the installers claiming that their cost was from $30 - $50/sf. At that price, I suspect it is much less expensive than the synthetics. We used it everywhere.

I don't understand this statement.  Do you not have slab yards in your neck of the woods?  If so, how can anyone honestly give that type of figure, or are you comparing raw materials versus finished fabrication and installation costs?  Uba tuba granite is one of the least expensive granites on the market, and it is very common, so I am guessing you are comparing your raw cost of the slab versus a total cost, right?
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13 Jun 2014 09:48 AM
It's Seattle. There were more slab yards than you could visit in several days. I got six slabs of granite. I paid a granite fabricator a shop and installation rate to cut, polish and install. It cost me a half to a third of the bids I got from the countertop people.

After a while, I started doing the granite work myself and it was sorta fun to see the stone become beautiful in your hands.
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07 Jul 2014 12:27 AM
Posted By ICFHybrid on 07 Jun 2014 09:07 PM
The seamless look is almost always a mistake. It's hard enough to get a good appearance with a reveal. You can do multiple reveals and have it look okay on wide windows and doors.

remember this is someone who thinks minisplits are attractive
ba_icfUser is Offline
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07 Jul 2014 12:31 AM
Posted By ICFHybrid on 12 Jun 2014 10:32 PM
Some granite is very affordable. It helps to choose by price instead of getting your eye set on something you saw and thought was fancy. We liked the colors of "Uba Tuba" for this home. I think I paid less than $10/sf for the stone in slabs despite the installers claiming that their cost was from $30 - $50/sf. At that price, I suspect it is much less expensive than the synthetics. We used it everywhere.

as most amateur designers/homeowners who don't hire interior designers do.  if it looks good, let's put it everywhere.  can't have too much of a good thing.
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