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Old 10-10-2013, 11:45 PM   #1
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Cutting roof trusses to install sky light


Hi buying a home in nj home inspector found that they cut several roof trusses to install sky light what can I do to repair ? How serious of an issue is this ? How much should I ask for repair? Roof also has two layers at end off useful life thanks bill

Last edited by Billgran; 10-10-2013 at 11:48 PM.
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Old 10-11-2013, 12:03 AM   #2
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No, you do not want to cut Roofing Trusses, especially if they are the engineered variety, manufactured on a line. You are better in using a Sun dome, to bring in light, or find a Skylight that will fit within the width between trusses.



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Old 10-11-2013, 12:13 AM   #3
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As they are already cut, consult a truss manufacturing company for an estimate.

Gary
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Old 10-11-2013, 12:42 AM   #4
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or hire a professional engineer that specializes in building construction to evaluate what you have and what is needed to fix it.

Good luck!
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Old 10-11-2013, 01:53 AM   #5
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As GBrackins and the other Gary have already stated, find a professional engineer to design a repair for the trusses.
I had to do this for a client here in Laguna Woods Ca. The engineer designed a fix for two cut trusses. The design costs $600.00 but it was money well spent. The solution included sandwiching the same nominal sized lumber with thru-bolts and was relatively easy for the contractor to perform.

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Old 10-11-2013, 09:17 PM   #6
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Oops, forgot to add; truss companies here have in-house SE's. Pay once rather than twice, you may find it a lot cheaper. Thanks, guys, for catching that!

Gary
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Old 12-05-2013, 10:55 AM   #7
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Do you see any manufacturer identification markings on the original rafters? If the rafters are factory-built there will likely be a company name somewhere. I would suggest contacting the manufacturer as they should have a structural engineer in house who is familiar with their products. If your house is stick built you should contact a structural engineer to can assess the current structural situation and recommend the necessary repairs.
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Old 12-05-2013, 11:54 AM   #8
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Quote:
Originally Posted by usbp.josh View Post
I would suggest contacting the manufacturer as they should have a structural engineer in house who is familiar with their products
I don't know where the OP is, but here in Seattle, we have lost probably 60%+ of our truss manufacturers in the last 8 years.
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Old 12-05-2013, 01:22 PM   #9
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Not likely someone on lines going to do any thing but guess at the cost to reroof. Going to have to go local and get some quotes.
You did not add your location to your profile, there can be a huge difference in prices depending on where you live.
Thanks to someone trying to save money it's now going to cost you double to remove them and haul away.
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Old 12-05-2013, 07:46 PM   #10
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Number one:

Make sure the Home Inspector is right, most of them are really stupid
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Old 12-06-2013, 10:35 AM   #11
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Do you have multiple skylights? Very large ones? Most I've ever seen will fit between trusses or rafters that are 24 inches oc. I installed a couple of them in my house.

As others have said, you need engineering advice. Probably the most-engineered component in a house is the trusses.
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Old 12-07-2013, 08:01 AM   #12
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Quote:
Originally Posted by Anti-wingnut View Post
I don't know where the OP is, but here in Seattle, we have lost probably 60%+ of our truss manufacturers in the last 8 years.
Try more like 75%+ I know of only two left out of the 10 that used to be on the I-5 corridor between seattle and centralia.
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Old 12-07-2013, 08:17 AM   #13
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I want to throw in my 2 cents. You should have left things alone. I'm not a big fan of skylights.

Now structure has been messed with. You need to compensate somewhere for this.
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Old 12-07-2013, 06:11 PM   #14
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Quote:
Originally Posted by 747
I want to throw in my 2 cents. You should have left things alone. I'm not a big fan of skylights.

Now structure has been messed with. You need to compensate somewhere for this.
I think the OP said that he is buying a home who's previous owner cut the trusses, not him.
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Old 12-08-2013, 03:15 PM   #15
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Quote:
Originally Posted by Dave Sal View Post
I think the OP said that he is buying a home who's previous owner cut the trusses, not him.
And he has not been back since he posted his original question 2 months ago
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