08:50AM | 02/27/07
Member Since: 01/17/07
48 lifetime posts
I'm remodeling my kitchen and den and have found out that I need to remove a 1960's tile and vinyl before installing durock for a ceramic floor. I've discovered a "black mastic" substance on the subfloor. I know that it has to be removed. Is it going to be more cost effective to remove the current subfloor w/ mastic and replace it with a new subfloor? Thanks ahead of time.


03:41PM | 02/27/07
Member Since: 07/03/05
283 lifetime posts
In the long run it may be better to lift that subfloor and replace it. The black adhesive, depending on how old it is may contain some asbestos.

In order to have a successful tile installation you will need a MINIMUM of 3/4" underlayment rated plywood (hint - CDX isn't) over floor joists that are 16" on center. The size of the joist will depend on its unsupported span but it should be at least a 2x8, much better if a 2x10. On top of the plywood you could set the 1/4" cement board like Hardibacker following their installation instructions by using thinset under the board and taping the seams with a fiberglass mesh tape.


06:02PM | 02/27/07
Member Since: 01/17/07
48 lifetime posts
Many thanks for the advice!


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Painting your front door a striking color is risky, but it will really grab attention. Picking the right shade (and finish... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon