7

So I've built a metal frame that is going to be used as my outdoor bbq. I am ready to install siding on it and I was told to use HardiBacker.

I googled it and apparently it isn't for use outdoors. What is a good cement board or other material that I can use as the sidings for my bbq?

It is on the edge of a patio and lawn so the sprinklers WILL get it wet about every other day. I am open to other suggestions

enter image description here

Ronnie
  • 327
  • 2
  • 6
  • 14

2 Answers2

1

Edited to remove ANY subjectivity:

HardieBacker is made from wood (cellulose fibers) and cement and carries a limited warranty for exterior use and only in certain climate zones. See HardieBacker's 10-Year Limited Warranty for Exterior Use

Durock is made from cement and fiberglass mesh. Wonderboard and others are made similar to Durock.

Subjectivity Here:

Obviously, there is a reason for the substantial difference in warranty between interior and exterior applications. My belief is that the cellulose will eventually break down from the shifting between warm humidity/ and freezing temperatures, especially in applications that would limit the ability for the product to appropriately air out. Durock is cement and fiberglass, and while both products will react to hot/cold like poured concrete, I would prefer the product that does not use wood. Given that they cost about the same, I would rather use something that the manufacturer expects to be able to withstand the 10-year warranty, over one that doesn't expect it to in nearly half the U.S.

But again, that is my subjective opinion.

Jacob S
  • 871
  • 6
  • 9
0

I would use Durock, a concrete board product of USG (United States Gypsum Company). It is very durable and works for exterior or interior applications. Here is the installation guide, and more information on their 10 year warranty for exterior installations.

John Smith
  • 826
  • 3
  • 8
  • 15