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Old 04-10-2013, 09:18 PM   #1
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What might cause this?


This situation is puzzling me, and I know I am going to need to get an engineer to look at it, but I thought I would get some opinoins first.
My home is pretty small, 758sq feet. Built in 1948, with a crawl space addition added on a few years later.(This is included in the 758sqf). The orginal part of the home has a basement, with solid roughcut 2" x 7 1/4" (some are 7 1/2") joists, and a 5 1/2 x 5 1/2" supporting beam that has three 6x6" posts supporting it. The joists and beam sit in pockets in the concrete. The house is 2x6 framed, with 2 x ??" slats that support the galvanized steel behind what looks more like a plaster then it does a stucco, as it is peeling off the house. I just started to do some demo work, so I have the basement insulated with 2" of foamboard glued up tight to the conrete, then fibre glass insulation 6" behind a 2x4" framed wall. I have not put vapour barrier up yet, and no drywall either. New furnace was put in with new duct work in 2010, and a new water heater last october, both natural gas.
Now, to the issue. The 5 1/2" x 5 1/2" beam is really starting to split badly, all in the last few months. I have not removed any walls, nor put up any. These aren't your regulat wood splits either, you can see them continuing the length of the beam horizontal. I will post some pictures here in a bit so you can see what I mean.
The only thing I added was a metal roof, but the company said the material was not much more heavy then the shingles that were up there.
I have had the house for just about 6 years, and it's just started happening in the last 4 months.
I can't figure out if its weight load, or seeing as the basement did not have heat running into it before, maybe the wood is drying out.
To me, looks like stress.
I will take measurements and add them with the pics so that I may give a better understanding.

Thanks
-Sean

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Old 04-10-2013, 10:30 PM   #2
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What might cause this?


Welcome to the Forum!

could you post some photos of the splits you've noticed.

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Old 04-10-2013, 10:56 PM   #3
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What might cause this?


FYI, when rigid foam is installed on basement walls it's generally considered to be a vapor barrier so you wouldn't want another barrier.
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Old 04-11-2013, 06:35 AM   #4
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What might cause this?


The horizontal cracking is called checking. It occurs naturally as the wood dries. Lots of it in my log house. Not usually a structural issue.
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Old 04-11-2013, 10:58 AM   #5
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What might cause this?


Ok. Here are some pics.
Some of the cracks I agree are checks but i am getting cracks above 2 door frames so a little more then just checks.
Also the foam board is 1 1/2" not 2. I made a mistake on that one.
I live in saskatchewan, canada. Our climates here are very cold winters and mild dry summers.
The beam is approx 30 feet.
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Old 04-11-2013, 10:59 AM   #6
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What might cause this?


Sorry, the pics posted upside down for some reason.

Thanks
Sean.

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