Go Back   BuildingHomes.ca - Building your community! > General > Building and Construction

Building and Construction General topics of building a home and the home construction industry.


Reply
 
Thread Tools Display Modes
  #1  
Old 2020-10-01, 06:00 PM
Trepex Trepex is offline
Senior Member
Regular User
 
Join Date: May 2008
Location: Navan (Ottawa), Ontario
Posts: 1,648
Default Exterior Cladding, CanExel, Rigid insulation, R-value, Etc.

Hi all! Iím back after a long hiatus! Weíre building a new custom home in Ottawa, and itís quite the different adventure from my previous tract builds.

Given the big increase in lumber costs since the onset of COVID-19, with our builder we seriously considered a complete switch to ICF for the above-ground floors. Our basement is already ICF. In the end we couldnít justify the increased costs for two above-ground floors in ICF, including the engineering and architecture costs to revise plans, the delay going back to revise permits, etc. So weíre sticking with an ICF foundation and then traditional wood construction.

Iím wondering at this point though if there are some upgrades we can easily make to the cladding, from an energy efficiency perspective. Weíre going with CanExel composite siding, and cladding will be standard OSB (not insulated panels). Our windows and doors have all been sized with a jam extension to account for the added thickness from the exterior strapping for the CanExel siding.

Is there an option at this point to still add some rigid foam extension on the exterior before the CanExel? I had already read a lot of mixed reviews about using insulated panels for cladding, where the foam is sandwiched between the exterior OSB and the studs. I get the advantages in terms of eliminating thermal bridging, but there seem to be other questions as to whether you really want the foam on the inside. Iím not even certain we could opt for that cladding at this point without it screwing up the depth of all of our windows and doors.

In any case, mainly looking at this from an energy efficient perspective and wondering whether itís even worth these efforts at this point to try to increase the R-values of our walls beyond what will be around R-20 as it stands.

Thanks Iím advance for any ideas or advice and guidance!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Best Place to purchase Rigid Foam Insulation Sarah Y Ottawa 10 2014-06-11 09:02 AM
Rigid Insulation on exterior walls.. House wrap? Alaspan Building and Construction 5 2012-03-01 02:00 PM
Rigid Insulation Dilemma Sarah Y Ottawa 6 2011-09-28 10:23 PM
Rigid Foam Insulation question for basement reno Sarah Y Ottawa 5 2011-09-28 09:48 AM
Holes in Exterior Rigid Foam DigbyTheDog Ottawa 2 2008-06-20 02:16 PM



All times are GMT -4. The time now is 03:22 AM.



Copyright © PHAND Corporation
This document may not be used elsewhere without the expressed written consent of PHAND Corporation.
*** There is no association between this website and any builder. ***

Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2020, vBulletin Solutions, Inc.