Jet Black Floor Joists With Creote-like Substance? - Building & Construction - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 01-22-2014, 12:19 PM   #1
Newbie
 
Join Date: Jan 2014
Posts: 1
Rewards Points: 10
Default

Jet Black Floor Joists with Creote-like substance?


We live in a 2-story Georgian (w/ basement) built in the early 1950s.

We recently discovered a busted drain pipe running thru an interior soffit in our Kitchen. The plumber suggested it was a longstanding problem (many years) even though we just started noticing any evidence of the problem (water leaking into the kitchen thru the wall/soffit).

When the plumber opened up the soffit to replace the pipe we noticed that the underside of the floor above the kitchen and the floor joists were jet black - almost if they had been sprayed with something.

At first, from a distance, we also thought there was a significant amount of black mold, however, upon looking closer, it looked more like the creosote buildup you might find in a chimney. In some sections, it looked almost like it was 1/2 inch to 1 inch thick.

The plumber thought it might be insulation sprayed with some sort of black tar.

Any thoughts on what it could be? Harmful?

(I apologize for not having photos to share at the moment)

Advertisement

Rocks1 is offline   Reply With Quote
Old 01-22-2014, 01:07 PM   #2
Member
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 8,377
Rewards Points: 3,548
Blog Entries: 4
Default

Jet Black Floor Joists with Creote-like substance?


Never heard of black spray insulation. Could it have been the remains of a past fire?
I think if it was creosote you would smell it. What is it like if you scape it? hard? soft? black all the way through or painted spray foam? Can you post a picture?

Advertisement

__________________
Do not PM with questions that can be asked in a forum. I will not respond.
joed is offline   Reply With Quote
Old 01-22-2014, 05:52 PM   #3
Member
 
Join Date: Jan 2012
Location: Pacific North west
Posts: 1,311
Rewards Points: 626
Default

Jet Black Floor Joists with Creote-like substance?


start checking for insect damage. that sounds like what wood looks like after capenter ants or termites come over for dinner.
Nailbags is offline   Reply With Quote
Old 01-22-2014, 08:40 PM   #4
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,778
Rewards Points: 672
Default

Jet Black Floor Joists with Creote-like substance?


There would be no reason for creosote on a second floor.
And it would never be that thick, it was just a brushed on coating.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is online now   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Please Help! 3 way switches controling 2 light fxtures. HelloMotto Electrical 52 11-05-2014 05:28 PM
Tankless - Black Soot Problem BillGrayslake General DIY Discussions 0 04-13-2013 02:02 PM
Grout color for black and white wall tile mix Andiy Tiling, ceramics, marble 3 02-21-2013 10:15 PM
Double switch wiring rockclimber Electrical 18 03-18-2012 11:13 PM
Black Iron Exposed? jamiedolan Plumbing 0 08-14-2009 11:16 AM




Top of Page | View New Posts