I am trying to remove the flooring in my kitchen. My house is about 50 years old and the flooring is lino like tiles which come up easy enough but there is this tar like covering beneath that which is difficult to remove. There are timber floor boards beneath the current covering and that I am trying to expose. I think the tar like coating could be Malthoid but I am not sure. Has anyone tried to remove this before and therefore have any tips or advice? Also I am wondering if it would have asbestos in it. I have been wearing a mask. Any pointers, advice and / or tip would be greatly appreciated.