Since this was posted, a TQS member has shared some important safety information. It seems that foam board can be flammable and should be covered by drywall. There is a simple solution. Instead of foam board, use acoustic insulation sound board. Since it is pourous, it works just fine with pins. As an added bonus, it contributes to the absorption of sound transmitted from the exterior or other rooms.
Here is the alternative:
https://www.homedepot.com/p/1-2-in-x-48-in-x-96-in-Acoustic-Insulation-Sound-Board-BSNAT85US/207168829
When Christa moved into her new home, her top priority was getting her quilt studio up and running. One of the first things she did was build a design wall, and she took step-by-step pictures so she could share the process with you.
Click on Go to Tutorial to learn how Christa built her design wall.
Learn more from Christa here at TQS in Show 2409.
(The quilt on the wall is from Christa's Rainbow Weave quilt kit.)
"produced from non-toxic organic material and natural wood fibers that are wax impregnated"
So how is THAT not flammable? It does pass "surface burn" tests, but that's not a concern unless you start ironing on your design board!
PLUS, it carries a health warning that it contains Crystalline Silica, the dust of which can cause cancer when breathed in (check out "playground sand"). Pushing and pulling pins in and out is certainly going to be a dust concern.
The stuff is designed to be put behind drywall where it won't be disturbed (same way asbestos is safe until you try to move it.) I don't know if covering it with fabric is good enough.
We had a fire and my foam design board was covered with felt. We lost the house, but the board did not burn. It was covered with soot, so not useful anyway.
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