What is this material under carpet padding on stairs?
I started to remove the carpet from the stairs that lead to my basement. Under the carpet is a foam padding, but under that is a dark, hard, speckled material. I'm scared to remove it as I have no idea what the material is. It doesn't seem to be glued to the stairs from what I can tell.
Does anyone know what it is, why it's there and if it's safe for me to remove it?
My house was built in 1950, but I have no idea when the carpet was installed.
Image can be seen here: flickr.com/photos/75964940@N07/6969296269/in/photostream
Last edited by thjk; 03-10-2012 at 08:23 AM.
Reason: add picture
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