Can I Sister Next To And Leave Fire Damaged Framing? - General Discussion - Contractor Talk

Can I Sister Next To And Leave Fire Damaged Framing?

 
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Old 06-29-2015, 06:17 PM   #1
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Can I Sister Next To And Leave Fire Damaged Framing?


I have a workshop that suffered a fire. Getting ready to begin repairs and curious if fire damaged boards can be left and new wood sistered in as needed? This would be for some rafters / 2x4 wall framing etc. Would remove as much as practical but I'm sure you know there are times when it is way easier to leave the old stuff and sister in new material next to the old.

Wondering if a fire damaged board will continue to degrade somehow? Thanks for any help.
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Old 06-29-2015, 06:52 PM   #2
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Won't hurt anything to leave the old stuff there, but you'll never get rid of the smell.

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Old 06-29-2015, 07:25 PM   #3
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Spray the livin' Wizz out of it with kilz or similar. Actually several light coats is better, but livin' whizz is such fun to type.

Might still have some odor on a hot day, but it should make it tolerable.
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Old 06-29-2015, 07:29 PM   #4
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


When in doubt rip it out. Burnt or chard wood needs to be replaced and in some cases severe smoke damage.
Rip it out as much as you can without compromising the structure then spray everything
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Old 06-29-2015, 08:26 PM   #5
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


When I was taking my contractor course. Painting it silver was the method they were using to seal the smoke smell.
Not sure why.
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Old 06-29-2015, 09:51 PM   #6
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Thanks for the replies. Will remove as much of the burnt wood as possible. Cover the rest with Kilz or similar.
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Old 06-29-2015, 10:22 PM   #7
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Kilz better than bin?
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Old 06-29-2015, 10:44 PM   #8
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Quote:
Originally Posted by B.D.R. View Post
When I was taking my contractor course. Painting it silver was the method they were using to seal the smoke smell.
Not sure why.
Silver paint possesses some borderline supernatural qualities.
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Old 06-29-2015, 11:14 PM   #9
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Quote:
Originally Posted by B.D.R. View Post
When I was taking my contractor course. Painting it silver was the method they were using to seal the smoke smell.
Not sure why.
The aluminum flakes in the paint wrap around it like Reynolds Wrap

Quote:
Originally Posted by 67Mustang View Post
Thanks for the replies. Will remove as much of the burnt wood as possible. Cover the rest with Kilz or similar.
Make sure it's a shellac based primer
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Old 06-29-2015, 11:17 PM   #10
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


That's what I thought. Bin better than kilz for odor.
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Old 06-30-2015, 07:42 AM   #11
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


BIN better than Kilz for everything.

For what it's worth, I worked out of a shop/barn that had sustained a pretty massive fire. Sistered everything. Didn't do anything in the ways of sealing. I never noticed much of an offensive odor.
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Old 06-30-2015, 11:41 AM   #12
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Yeah, but you live in Jersey.
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Old 06-30-2015, 06:57 PM   #13
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Quote:
Originally Posted by aptpupil View Post
That's what I thought. Bin better than kilz for odor.
Bin is better. But Kilz Original is a close second. It does everything you need and is half the price.
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Old 06-30-2015, 07:02 PM   #14
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Quote:
Originally Posted by 67Mustang View Post
Thanks for the replies. Will remove as much of the burnt wood as possible. Cover the rest with Kilz or similar.
Yep! Just make sure it's an oil base stain blocking primer. I like to get it tinted the color of the undamaged wood so it blends in better. But I'm a little OCD...

Latex primers won't cut it.
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Old 07-01-2015, 11:10 AM   #15
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


If the space is enclosed, you could rent a heavy duty ozone generator and let it run for 24 - 36 hours with all doors and windows closed. That will eliminate nearly all of the smell permanently. Then cover with bin and you should never have a problem with any smoke smell.
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Old 07-01-2015, 11:13 AM   #16
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Will look into using an ozone generator. That is some great advice and something I would never have thought of. Thanks
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Old 07-01-2015, 11:29 AM   #17
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


You're welcome... Ozone is used all the time in not only fire restoration businesses, but anywhere odors need to be reduced or eliminated. Car dealers use them in cars traded in that were owned by a smoker.

In fact, ozone has a LOT of uses other than odor reduction. Things like pool/hot tub sanitation rather than chlorine, commercial laundries, water treatment etc. The nice thing about ozone over corrosive chemicals, is ozone (O-3) is a very unstable molecule. It actively seeks other molecules to combine with. If it can't "find" any, it will go back to it's more stable form of O-2. So, it dissipates fairly quickly.

The down side to ozone, is in the atmosphere, it can combine with floro-carbons and other gases to make some fairly nasty "stuff" hence "ozone alerts" on really hot and hazy days.
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Old 07-01-2015, 06:04 PM   #18
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


When my sailboat caught fire, and the interior was heavily smoke damaged.
The company doing the repairs put an ozonator on board for a couple of days. The boat was sealed up and could not be entered.
I was dubious but there is no smell of smoke 10 yrs later.
Worked well.
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Old 07-01-2015, 06:18 PM   #19
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


EXACTLY..... ozone is the BEST at eliminating smoke or other organic odors.... pet pee, organic decay (mold/mildew), smoke (either fire related or cigar/cigarette) etc.
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Old 07-01-2015, 09:30 PM   #20
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Re: Can I Sister Next To And Leave Fire Damaged Framing?


Quote:
Originally Posted by CompleteW&D View Post
You're welcome... Ozone is used all the time in not only fire restoration businesses, but anywhere odors need to be reduced or eliminated. Car dealers use them in cars traded in that were owned by a smoker.

In fact, ozone has a LOT of uses other than odor reduction. Things like pool/hot tub sanitation rather than chlorine, commercial laundries, water treatment etc. The nice thing about ozone over corrosive chemicals, is ozone (O-3) is a very unstable molecule. It actively seeks other molecules to combine with. If it can't "find" any, it will go back to it's more stable form of O-2. So, it dissipates fairly quickly.

The down side to ozone, is in the atmosphere, it can combine with floro-carbons and other gases to make some fairly nasty "stuff" hence "ozone alerts" on really hot and hazy days.

Ozone works wonders. The company I worked for when I did insurance resto work had a couple big (16'x16') ozone chambers - they would take clothes that had been in a house fire and reeked of smoke so bad your eyes would water, stick them in the chamber, crank it up and when it was done those clothes didn't have a drop of smoke odor.

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