GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter 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 shingle siding installation over a window

user-7061227 | Posted in Green Building Techniques on

Hi,
My builder insists that the shingles over a window and door should touch the flashing. The Maibec instructions insist that there be a 1/4″ gap between the siding and the flashing. I would appreciate any thoughts.
Thanks
Andy

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
    Akos | | #1

    Your builder is wrong.

    There is always be a gap between the head flashing the the siding and the head flashing needs to be lapped by the WRB (it needs to go behind the house wrap). The head flashing should also be sloped to drain outside. The idea is to channel any water flowing down along the WRB from above the window out.

    With painted cedar, adding a spacer mat (ie Home Slicker) makes a big difference on the durability of the finish.

  2. user-7061227 | | #2

    I thought so.
    We used siga majvest
    We used Tyvek rain drain
    We taped the top of the head flashing to the majvest
    After all that I didn't want to fail at the siding stage.
    Thanks
    A

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |