GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter X Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

Cedar or PVC as threshold

arnoldk | Posted in General Questions on

Hi,

I need to raise my front door by an inches because the slab that was poured in spring of 2022 is not level with the foundation. This does not leave me much room to install the finish flooring without not being able to open the door.

I will remove the door and install 1 inch (5/4″) threshold on top of the foundation and reinstall the door on top of that. Is it better to use PVC or cedar board?

Thank you,
Arnold

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Replies

  1. Expert Member
    MALCOLM TAYLOR | | #1

    Arnold,

    PVC or pt wood. Cedar is both soft, and despite its reputation doesn't do well in confined spaces where it may get damp.

    1. arnoldk | | #2

      Good point on the softness of cedar. Any issues with sealant for PVC against concrete?

      Thanks,
      Arnold

      1. Expert Member
        BILL WICHERS | | #3

        I've used good quality silicones before with no problems. I suspect you could use polyurethane too, but I haven't tried it (if you tried it, just put a test blob on some scrap PVC first and check that it doesn't do anything to the PVC). The masonry won't care what sealant you use, it's only the PVC that could potentially react with the sealant.

        Bill

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |