burned appearance on flooring

[James M. Troth]

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.

[Christopher Currins]

The sun's UV rays.

[James M. Troth]

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?

[Dale Duffy]

Originally Posted by jtroth

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--

[Roy D. Cooke, Sr]

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

[Brian A. MacNeish]

Originally Posted by rcooke

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.

[Wayne B. Wilson]

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.

[Brian A. MacNeish]

Originally Posted by wwilson3

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.

[Roy D. Cooke, Sr]

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

[Brian E. Kelly]

Originally Posted by ccurrins

The sun's UV rays.

Ditto. See it often, carpet too.

I don't make too many comments about OLD Flooring myself.

[Roy D. Cooke, Sr]

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

[Brian A. MacNeish]

Originally Posted by rcooke

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.

[Roy D. Cooke, Sr]

Originally Posted by Brian A. MacNeish

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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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.

[Brian A. MacNeish]

Originally Posted by rcooke

----------------------------------------------------------------------
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!

[Roy D. Cooke, Sr]

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 .
--------------------------------------------------------------------------------------
("It is obvious that you haven't read enough. ")

Thanks for the dig it is obvious to me and many others you are still an ***** Hole .
Thanks for confirming this again ...