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

Exterior Insulation and Window Replacements

user-6978760 | Posted in General Questions on

Hello!

I am currently working on an exterior renovation of a kitchen addition. The kitchen has a large Bay window that I will be replacing. I am also planning on replacing the existing lap siding and adding 2”of Rockwool insulation to the outside of the sheathing followed by strapping and James Hardie lap siding.

The bay window I have quoted has 6” side jambs which I am told are fairly standard. However, with the addition of the exterior insulation I am worried that 6” jambs will not be deep enough to allow the siding to butt into it correctly (1/2” drywall + 3.5” stud-wall + 1/2” sheathing + 2” Rockwool + 1/2”strapping + 1/2” lap siding = approx. 7.5”).

Should I be ordering a bay window with a deeper jamb? Or is there a good way to detail where the bay window and the siding/insulation meet that I am not thinking of?

Rob

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

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |