sewfunquilting
Newly Registered
Posts: 2
Joined: Thu Apr 04, 2013 9:35 pm

Can old ceiling tiles be used as mulch?

I have a quite a few used ceiling tiles. Can I lay them around the plants in my gardens as mulch?

I don't know what 30 year old ceiling tiles might have been made out of.

Thank You ..... Lola

User avatar
rainbowgardener
Super Green Thumb
Posts: 25303
Joined: Sun Feb 15, 2009 11:04 pm
Location: TN/GA 7b

Re: Can old ceiling tiles be used as mulch?

I'm not as purist as some people, but even so I would hesitate at that.

30 years ago it is possible they still had asbestos in them.

Even if not, they have:

Ceiling panels are composed of inorganic substances including MMVF22 [(slag wool) man made vitreous (silicate) fibres (CAS 65997-17-3)] and/or MMVF34 [(stone wool) Roxul® 1000 (HT) mineral fibres], expanded perlite (CAS 93763-70-3), clay (kaolin, CAS 1332-58-7), and recycle paper (CAS 9004-34-6) using starch (CAS 9005-25-8) binder to form a solid dry matrix.

The vitreous silicate fibers is like fiberglass. It is irritating to the skin and bad for you to breathe.

In the meantime it is all inorganic and so does not benefit your soil at all. Your soil will benefit from organic mulch - grass clippings, fall leaves, wood chips, shredded paper, compost, etc.
Twitter account I manage for local Sierra Club: https://twitter.com/CherokeeGroupSC Facebook page I manage for them: https://www.facebook.com/groups/65310596576/ Come and find me and lots of great information, inspiration

User avatar
Meatburner
Senior Member
Posts: 174
Joined: Sun Jun 17, 2012 6:00 pm
Location: SW MO zone 6b

Re: Can old ceiling tiles be used as mulch?

Would never ever ever consider using them as a mulch. That has no place in a garden IMO.

User avatar
hendi_alex
Super Green Thumb
Posts: 3567
Joined: Sun Jul 06, 2008 11:58 am
Location: Central Sand Hills South Carolina

Re: Can old ceiling tiles be used as mulch?

Would never consider it either.
Eclectic gardening style, drawing from 45 years of interest and experience. Mostly plant in raised beds and containers primarily using intensive gardening techniques.
Alex

sewfunquilting
Newly Registered
Posts: 2
Joined: Thu Apr 04, 2013 9:35 pm

Re: Can old ceiling tiles be used as mulch?

Thank you for your replies. At first glance it sounded like a good idea to place square ceiling tiles around plants for mulch and giving them perfect spacing. I had second thoughts which led me to posting the question where I knew I would get good advice.

I was really surprised to read what they are made of! I will dump the tile idea and continue using mulch that I know is "only" organic.

Thank you again for your help.

Lola

Return to “Composting Forum”