I wrote an article no a long time ago about a topic that some people don’t know they live on scoria and asphalt. Few days ago I had an opportunity to come across scoria, asphalt and Masonite during working on one job. I am not going to repeat known information about how this type of floor can be damaging to your health I just want to share photos from this job so you can imagine what you have under your feet in 21. century.
During working on this job we dismantle the original flooring glued with asphalt on Masonite that is freely put on scoria.
You can see here in detail that at some places under the parquet turned the Masonite into literal dust.
On this photo you can see the rest of the asphalt glue. You can find out really easily if your floor is glued with asphalt. In summer when sun will shine on your floor and heat it adequately you will smell the asphalt glue in a form of asphalt tar.
The customer left scoria there as foundation and we just flatten to requested height with a spirit level and then cover it with geotextile, Mirelon (trademark for isolation material from Czech Republic) and two layers of OSB planks glued to each other on whole surface. On these OSB planks you can glue new wood flooring or install laminate flooring.
Author: Soska Milan