Best Way To Insulate Plank Construction? - Insulation - Page 2 - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Insulation

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Like Tree3Likes
Reply
 
Thread Tools Search this Thread
Display Modes
Old 01-27-2019, 08:37 PM   #16
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


Also would like to say thank you to everyone that chipped in their .02 cents. It's much appreciated for someone who will be doing changes like this room by room. Keep the info coming if you find anything. I will talk to my coworker who mentioned it tonight when I see him. I'm thinking he may have run into this when he renovated his house.
MKCoconuts is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-28-2019, 06:38 AM   #17
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 25,989
Rewards Points: 766
Blog Entries: 41
Default

Re: Best Way to Insulate Plank Construction?


I would definitely NOT fill anything between those two planks. You will change the way that they dry out and that could be catastrophic in the long run. I think you best bet is as was mentioned previously. A framed wall in front of the plank wall.



I would put a thin layer of foam board that is attached to the wall and air sealed. I would thing frame the wall in front of it and fill with normal batt insulation. Wall can still dry to the exterior and the foam board will nearly totally eliminate any drying to the inside.
Windows on Wash is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-28-2019, 07:06 AM   #18
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


Quote:
Originally Posted by Windows on Wash View Post
I would definitely NOT fill anything between those two planks. You will change the way that they dry out and that could be catastrophic in the long run. I think you best bet is as was mentioned previously. A framed wall in front of the plank wall.



I would put a thin layer of foam board that is attached to the wall and air sealed. I would thing frame the wall in front of it and fill with normal batt insulation. Wall can still dry to the exterior and the foam board will nearly totally eliminate any drying to the inside.
I wasn't planning on filling inbetween, exactly for the reason you mentioned. There is no rotted wood, so it is obvious that any moisture that does make it's way there doesn't stick around for long.

I really hate putting a framed wall and losing that space, it would seem there is no other option unless someone who's an expert in this rare construction pops up and can point another direction. I am still going to explore the idea of pulling one plank at a time and installing a 2x4 in it's place. And then when time/money permits, remove the outer ones and replace them with OSB, wrap, insulation and new siding.
MKCoconuts is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-28-2019, 08:46 AM   #19
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 25,989
Rewards Points: 766
Blog Entries: 41
Default

Re: Best Way to Insulate Plank Construction?


Remember that the space we are talking about is about 8" of length and width respectively. To insulate the home and allow for the exterior cladding to last another lifetime, that isn't that punitive in my opinion. That said, you are definitely the boss here with regards to your own home.
Windows on Wash is offline   Reply With Quote
Old 01-28-2019, 06:54 PM   #20
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


The bigger benefit to adding the frame is I have somewhere to run the electrical, as mentioned. And leaving one outlet in the room just won't do the trick.

I may go the route you mentioned with the foam board and air sealed and then the framing with bat insulation.
MKCoconuts is offline   Reply With Quote
Old 01-28-2019, 07:56 PM   #21
Member
 
Join Date: Mar 2005
Location: Charleston SC
Posts: 1,988
Rewards Points: 22
Default

Re: Best Way to Insulate Plank Construction?


See if you can find this magazine. OLD - HOUSE JOURNAL Vol XX1 , # 3 HOUSES WITHOUT FRAMES.
Technique of Plank Construction by Stephen B. Jordan page # 36 thru page # 41 this article should help you under plank framing.
Windows on Wash likes this.
ClarenceBauer is offline   Reply With Quote
Old 01-28-2019, 08:23 PM   #22
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


That was an excellent read. I can't believe that never popped up in any of my searches. It does answer a few questions and looks like I'm going to have to give up a few inches to put in insulation, which, I suppose is worth it if it helps keep the house warmer/cooler and saves some money on the energy bills. I will have to take the articles suggestion too and super insulate the attic, once all the knob and tube wiring is replaced with romex.
Windows on Wash likes this.
MKCoconuts is offline   Reply With Quote
Old 01-29-2019, 05:59 PM   #23
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


So, after adding up cost of everything, I think I'd decided my plan. I'm going to put 2" rigid foam up (giving me a Rvalue of 12.9), some 1x3 furring strips to allow room for wiring and 1/2" drywall. This will require me to buy MC wire but this way will certainly warm that room up, give me the extra outlets I want, while sacrificing the least amount of space. Any one have objections or concerns with this route?
MKCoconuts is offline   Reply With Quote
Old 01-29-2019, 06:23 PM   #24
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 37,836
Rewards Points: 282
Default

Re: Best Way to Insulate Plank Construction?


Quote:
Originally Posted by MKCoconuts View Post
So, after adding up cost of everything, I think I'd decided my plan. I'm going to put 2" rigid foam up (giving me a Rvalue of 12.9), some 1x3 furring strips to allow room for wiring and 1/2" drywall. This will require me to buy MC wire but this way will certainly warm that room up, give me the extra outlets I want, while sacrificing the least amount of space. Any one have objections or concerns with this route?
It is a strange house, pretty hard for anyone to tell you something is wrong.
Nealtw is online now   Reply With Quote
Old 01-29-2019, 07:18 PM   #25
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


That it is. Odd enough, I am pretty sure my grandparents house is older but has normal stud walls and it's only 2 miles away! Haha. And while I do like the house, if money were no object, I'd tear it all down, dig out a full basement (right now half the house has a dirt floor basement, other half a crawlspace), and rebuild it nearly the same....just more modern and better insulated.

I'd just like to have everything I change as close to code as possible, though with such a house, could I be considered a gray area?
MKCoconuts is offline   Reply With Quote
Old 01-29-2019, 07:38 PM   #26
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 37,836
Rewards Points: 282
Default

Re: Best Way to Insulate Plank Construction?


Quote:
Originally Posted by MKCoconuts View Post
That it is. Odd enough, I am pretty sure my grandparents house is older but has normal stud walls and it's only 2 miles away! Haha. And while I do like the house, if money were no object, I'd tear it all down, dig out a full basement (right now half the house has a dirt floor basement, other half a crawlspace), and rebuild it nearly the same....just more modern and better insulated.

I'd just like to have everything I change as close to code as possible, though with such a house, could I be considered a gray area?
Your parents house is balloon framed and there are enough around that people know the pitfalls and the few improvement that should be made but with yours, you will just have to discover them as you go.


We did some work on a house where the whole house was built with solid 2x4s all nailed together. Electricians where making room for wires with a chain saw and we had too get a steel frame built for the HVAC register holes in the floor.
The inspectors all just walked around, shaking there head, smiling at each little way some one figured out some way of doing something and past everything first time.
Nealtw is online now   Reply With Quote
Old 02-22-2019, 09:39 PM   #27
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


So I got pretty far insulating with rigid foam and got the wiring figured out. I had a friend who is an architecture engineer look at it and said I would be okay taking the inner planks out and studding the wall out.

Given that I got almost two walls done with just putting the rigid foam over the inner planks, I hate to back track. But I was wondering, does anyone see an issue if I were to remove the inner planks, put the rigid board against the outside planks (sheathing) and then stud out and use fiberglass insulation. Do so would eliminate thermal bridging and give a more proper way of running my electrical.

If I stud out, I do not want to leave the interior planks. Reason being that doing so will require me to move the current doorway over and if I can avoid that, I'd be a happy camper. It will also making window molding easier and keep the room a good size.
MKCoconuts is offline   Reply With Quote
Old 02-22-2019, 09:58 PM   #28
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 37,836
Rewards Points: 282
Default

Re: Best Way to Insulate Plank Construction?


I think the outer planks are balloon from bottom to top of the house, so they are the structure, I don't see a problem with just adding a wall instead. Much like building wall in front of a brick wall . But at best I too am just guessing at what the builders had in mind.
__________________
Do not use flat bottom gables with scissor trusses.
https://www.fema.gov/media-library-d...6/chapter7.pdf
figure 7-14
Nealtw is online now   Reply With Quote
Old 02-22-2019, 10:06 PM   #29
Newbie
 
Join Date: Jan 2019
Posts: 18
Rewards Points: 36
Default

Re: Best Way to Insulate Plank Construction?


I'm more concerned with using the rigid foam on the interior side of it. I don't want it cause a moisture problem and rotting the wood since, like you said, that is the supporting area of the house.

If I had the money, I'd tear this down and rebuild with modern framing almost exactly the way it is now
MKCoconuts is offline   Reply With Quote
Old 02-22-2019, 10:21 PM   #30
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 37,836
Rewards Points: 282
Default

Re: Best Way to Insulate Plank Construction?


Quote:
Originally Posted by MKCoconuts View Post
I'm more concerned with using the rigid foam on the interior side of it. I don't want it cause a moisture problem and rotting the wood since, like you said, that is the supporting area of the house.

If I had the money, I'd tear this down and rebuild with modern framing almost exactly the way it is now
The trick is to seal the inside so no house air can get back in there. Moisture condenses at the dew point and the dew point will be somewhere in the wall so just don't let moisture get to that spot.
Air leaks that let air travel right thru the wall are the worst.
__________________
Do not use flat bottom gables with scissor trusses.
https://www.fema.gov/media-library-d...6/chapter7.pdf
figure 7-14
Nealtw is online now   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Luxury Vinyl Plank Flooring OutbackAnnie Flooring 11 06-26-2018 08:22 PM
Plank subfloor not breaking on joist mizquierdo31 Building & Construction 1 03-06-2018 07:06 AM
Plank flooring for new construction DidjaDewit Flooring 3 10-17-2012 04:56 PM
Books that teach the basics of construction - recommend them to me? costafinkel Building & Construction 13 08-04-2011 11:32 PM




Top of Page | View New Posts