The 7 step stairway to my back door did not survive the winter (truly cannot be patched) When they were poured decades ago they were poured with the stoop at the back door.

They need to be replaced, I would prefer concrete but my funding is limited.

I do not want wood as it requires maintaining (I have chemical sensitivities so regular painting, etc is not a good idea)

Question one

Best way to take the old ones down?

Question Two

Experiences with composite treads: pros and cons
Do they offgass in the summer?

Question Three

Has anyone used concrete board to make exterior steps?