What is this interior ceiling and soffit material?


We have an older building at church and need to know what the material is that is on the soffit and interior ceilings. It appears to be the same thing. The flat roof area has gravel on top. The soffit and interior ceilings look like some kind of fiberglass but is hard. I have a couple of photos if that helps.


Looks like Tectum deck panels. Made by Armstrong. Not real uncommon.


Thank you. Appreciate the information.


keepitlow is right, that’s Tectum. I heard once they are made of seaweed but not sure if that’s true. Does look like some kind of compressed natural product. Used to see it over gymnasiums a lot.