Should durarock be installed under granite for my outdoor grill area?
I have a table top made of plywood and it was covered with tiles. The tiles have fallen off and the plywood is rotted. I’m having it redone and the contractor wants to install granite. Do I need to have durarock under the granite?
Should not need durarock in your application. I would recommend using 3/4 CDX plywood under neath to give support to the granite. As suggested in other answers, the sides and ends should be sealed in a manner the prevent water getting in and causing rot. I would not recommend the use of treated plywood because the chemicals in it may not allow the glue used for adhering the hold for long.
If this is a natural looking table, you could tun a trim board of cedar to hide the edges of the plywood.
Hope this helped with your question. Good luck with your project
Do not install durarock under a solid granite countertop. If the granite is 3cm or 1-1/4" thick granite then underlayment will not be required however if the granite is 2cm or 3/4" thick you will need to a underlayment. I suggest either 3/4" plywood or MDF. I would also prime and paint all sides of the underlayment to prevent rotting. Hope this helps.
References :
Custom home builder 25+ yrs
I would use Hardibacker. Probably the best for wet environment gives good adhesion and thinner than durarock. That is what we use for installing creamic tile murals for outdoor kitchens.
References :
ideally yes for a long life, you could also use hardy panel I think they are both around the same price
References :
Should not need durarock in your application. I would recommend using 3/4 CDX plywood under neath to give support to the granite. As suggested in other answers, the sides and ends should be sealed in a manner the prevent water getting in and causing rot. I would not recommend the use of treated plywood because the chemicals in it may not allow the glue used for adhering the hold for long.
If this is a natural looking table, you could tun a trim board of cedar to hide the edges of the plywood.
Hope this helped with your question. Good luck with your project
References :
Almost 25 years in construction – commercial and residential