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Interior Inspections Contains discussions about the interior portion of a home inspection. This includes stairs, walls, floors, ceilings, smoke detectors, etc.

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  #1  
Old 12/11/10, 11:08 PM
James M. Troth's Avatar
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Default burned appearance on flooring

I did an inspection today for someone getting ready to sell their home in the Spring. The floor in the kitchen near the sliding glass door had an odd appearance that looks like a burn mark. The seller is the original owner and has no idea as to why this appeared. Any ideas? The sliding glass door faces south.
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  #2  
Old 12/11/10, 11:58 PM
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Default Re: burned appearance on flooring

The sun's UV rays.






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  #3  
Old 12/12/10, 12:20 AM
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Default Re: burned appearance on flooring

That is my first thought, and that the screen is why it is not happening on the other half of the door. I have never seen it like that. Have you seen this before?



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  #4  
Old 12/12/10, 2:40 AM
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Default Re: burned appearance on flooring

Quote:
Originally Posted by jtroth View Post
That is my first thought, and that the screen is why it is not happening on the other half of the door. I have never seen it like that. Have you seen this before?
I haven't Jim, but I would simply write I don't know what caused it, nor did the owner...seems odd where your at getting cooked from the sun, but stranger things have happened...certainly a possibility I guess if the glass is reflecting heat in the right direction for a long period of time.

Personally I've never seen anything even remotely related here in Death Valley though--
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  #5  
Old 12/12/10, 3:33 AM
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Default Re: burned appearance on flooring

It's a water stain coming from the door under the flooring .
See it around here usually not that pronounced .



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  #6  
Old 12/12/10, 8:39 AM
Brian A. MacNeish Brian A. MacNeish is offline
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Default Re: burned appearance on flooring

Quote:
Originally Posted by rcooke View Post
It's a water stain coming from the door under the flooring .
See it around here usually not that pronounced .
Why would the stain be coming up through the vinyl (?) flooring 1.5-2 inches from the doorsill/threshhold. If the water is travelling from the sill area to where it "shows" up, wouldn't the stain be evident from the sill inwards?

If there was regular water intrusion causing this stain, you would expect some subfloor softness from rot.
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Old 12/12/10, 11:55 AM
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Default Re: burned appearance on flooring

I would bet it is several things going on condensation and air from the heating outlet
Metal door air leakage , Moisture . Old vinyl floor sunlight.



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Old 12/12/10, 12:15 PM
Brian A. MacNeish Brian A. MacNeish is offline
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Default Re: burned appearance on flooring

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Originally Posted by wwilson3 View Post
I would bet it is several things going on condensation and air from the heating outlet
Metal door air leakage , Moisture . Old vinyl floor sunlight.
That would be my guess! May be some refraction/concentration of sunlight happening.

I did see some dark yellow discolouring of this type of flooring around furnace supply air floor registers about 8-9 years ago.

The kitchen was directly above the furnace plenums and the 2 ducts serving the kitchen were directly taken off the high sides of the hot air plenum and not a main trunk. The air supplied to these registers was in the 140-150-160*F range while I was there and may have been higher at other times (Colder days with much longer running times). The heated air leaking under register floor flanges had yellowed the flooring all around its edge.
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  #9  
Old 12/12/10, 3:57 PM
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Default Re: burned appearance on flooring

http://answers.yahoo.com/question/in...4112555AAPBAzP



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Old 12/12/10, 5:20 PM
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Default Re: burned appearance on flooring

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Originally Posted by ccurrins View Post
The sun's UV rays.
Ditto. See it often, carpet too.

I don't make too many comments about OLD Flooring myself.
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  #11  
Old 12/13/10, 10:18 PM
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Default Re: burned appearance on flooring

Photograph 4: Vinyl Flooring
—Pink spots due to moisture

problems arising from the impermeability of the vinyl flooring

and ventilated and insulated crawlspace underneath.BSI_009
Sorry will not open larger will see how to post it better tomorrow
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Last edited by rcooke; 12/14/10 at 9:11 AM..
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Old 12/14/10, 8:41 AM
Brian A. MacNeish Brian A. MacNeish is offline
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Default Re: burned appearance on flooring

Quote:
Originally Posted by rcooke View Post
Photograph 4: Vinyl Flooring
—Pink spots due to moisture

problems arising from the impermeability of the vinyl flooring

and ventilated and insulated crawlspace underneath.BSI_009
Sorry will not open larger will see how to post it better tomorrow

From the footnotes:

4. The pink color comes from digestive enzymes exuded from mold that react with the plasticizers in the vinyl. The mold comes from the substrate being wet because of the impermeability of the vinyl. No vinyl no problem.


IMHO, with a continually damp crawlspace underneath, we have a different situation than at a window with apparently heat damaged floor.
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  #13  
Old 12/14/10, 9:12 AM
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Default Re: burned appearance on flooring

Quote:
Originally Posted by Brian A. MacNeish View Post
From the footnotes:

4. The pink color comes from digestive enzymes exuded from mold that react with the plasticizers in the vinyl. The mold comes from the substrate being wet because of the impermeability of the vinyl. No vinyl no problem.


IMHO, with a continually damp crawlspace underneath, we have a different situation than at a window with apparently heat damaged floor.
----------------------------------------------------------------------
Sorry I disagree I find it in Bath rooms beside the Toilets and Kitchens in front of the sink.
From my experience it is caused by water and all that I read says it is from dampness.



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  #14  
Old 12/14/10, 9:51 AM
Brian A. MacNeish Brian A. MacNeish is offline
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Default Re: burned appearance on flooring

Quote:
Originally Posted by rcooke View Post
----------------------------------------------------------------------
Sorry I disagree I find it in Bath rooms beside the Toilets and Kitchens in front of the sink.
From my experience it is caused by water and all that I read says it is from dampness.
When I saw the discoloured (dark yellow) vinyl flooring around the edges of hot air floor registers (2) close to/over the hot air plenum of the furnace, can you tell me where the moisture came from?

BTW, are the other HI's who claim they saw discolouration from the sun incorrect? Should they be looking for a moisture source and disregard the obvious?

It is obvious that you haven't read enough. In the following article, there is a picture of sun discolouration!!

http://www.ntlfloortrends.com/CDA/Ar...100000f932a8c0_

ANd this JUST happens to be from a flooring website with pictures taken by TARKETT employees!

Last edited by Brian A. MacNeish; 12/14/10 at 10:11 AM..
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  #15  
Old 12/14/10, 10:01 AM
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Default Re: burned appearance on flooring

If the home has air conditioning ,then I expect this could be the cause condensation cold from ac . Ac shuts of cool spot sucks in moist air .
It is hard to do an inspection with out being able to see the home .

I have not read where sun can cause this but I do know Foam carpets sure can cause staining .
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Thanks for the dig it is obvious to me and many others you are still an ***** Hole .
Thanks for confirming this again ...



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Last edited by rcooke; 12/14/10 at 10:07 AM..
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