Insulate or not to Insulate, that is the question.

Anything to do with mechanical, construction etc

Insulate or not to Insulate, that is the question.

Postby Larry.Reel » Thu Nov 10, 2016 1:36 pm

Guys,

I have seen many different styles, Makes and Models. I am debating whether I need to insulate the walls. I am using 3/4" plywood on the walls. I live in Missouri and plan to camp most of the year with the winter months not so much if not at all. I see many manufactures who do not, so it got me to thinking. Is this mainly to keep down on condensation?

I'm a newb, so please be kind.

Cheers

Larry
Larry.Reel
Teardrop Inspector
 
Posts: 2
Joined: Sun Oct 30, 2016 5:14 pm

Re: Insulate or not to Insulate, that is the question.

Postby Pmullen503 » Thu Nov 10, 2016 1:59 pm

Insulation will reduce condensation but it also helps in the heat of summer. A plywood box gets hot in the sun!

For the time and money it takes, I believe you'll be glad you did.

Good Luck!
Pmullen503
Teardrop Master
 
Posts: 220
Images: 57
Joined: Sun Nov 23, 2014 1:33 pm

Re: Insulate or not to Insulate, that is the question.

Postby KCStudly » Thu Nov 10, 2016 2:20 pm

If you will be camping in park like settings with other people close by, or along travel routes with traffic, insulation will also act as a sound deadener.
KC
My Build: The Poet Creek Express Hybrid Foamie

Poet Creek Or Bust
Engineering the TLAR way - "That Looks About Right"
TnTTT ORIGINAL 200A LANTERN CLUB = "The 200A Gang"
Green Lantern Corpsmen
User avatar
KCStudly
Donating Member
 
Posts: 8835
Images: 8051
Joined: Mon Feb 06, 2012 10:18 pm
Location: Southeastern CT, USA
Top

Re: Insulate or not to Insulate, that is the question.

Postby yrock87 » Thu Nov 10, 2016 2:37 pm

on top of what has already been said, using foam as a structural member allows you to use thinner plywood, making a wall that is lighter at a given strength than ply alone.
The SJ Cruiser, my 5x10 Benroy build http://www.tnttt.com/viewtopic.php?f=50&t=64944
User avatar
yrock87
Teardrop Master
 
Posts: 285
Images: 97
Joined: Sat Oct 31, 2015 2:32 pm
Top

Re: Insulate or not to Insulate, that is the question.

Postby QueticoBill » Thu Nov 10, 2016 2:44 pm

yrock87 wrote:on top of what has already been said, using foam as a structural member allows you to use thinner plywood, making a wall that is lighter at a given strength than ply alone.


With ply on both sides, or perhaps another skin like pmf. Stressed skin panels imply stress in both skins. You probably know that but seemed odd alone.
QueticoBill
Silver Donating Member
 
Posts: 333
Images: 22
Joined: Sun Apr 14, 2013 7:22 am
Top

Re: Insulate or not to Insulate, that is the question.

Postby yrock87 » Thu Nov 10, 2016 3:35 pm

QueticoBill wrote:
yrock87 wrote:on top of what has already been said, using foam as a structural member allows you to use thinner plywood, making a wall that is lighter at a given strength than ply alone.


With ply on both sides, or perhaps another skin like pmf. Stressed skin panels imply stress in both skins. You probably know that but seemed odd alone.



you are right of course. I should have specified but doubt most on this forum would leave the foam entirely uncovered on the inside or outside, so I didn't mention it. plus I would argue that the foam itself can act as a "relatively weak" skin. bonding a sheet of foam to a single sheet of ply will be stronger than either alone, although significantly less strong than adding a second sheet of ply to create a full torsion box.
The SJ Cruiser, my 5x10 Benroy build http://www.tnttt.com/viewtopic.php?f=50&t=64944
User avatar
yrock87
Teardrop Master
 
Posts: 285
Images: 97
Joined: Sat Oct 31, 2015 2:32 pm
Top

Re: Insulate or not to Insulate, that is the question.

Postby QueticoBill » Thu Nov 10, 2016 6:44 pm

You are likely right. I'm too new to this bulletin board to know if this kind of caution is warranted. And partly I'm as fascinated with stressed skin design today as I was when studying it in grad school 50+ years ago.
QueticoBill
Silver Donating Member
 
Posts: 333
Images: 22
Joined: Sun Apr 14, 2013 7:22 am
Top

Re: Insulate or not to Insulate, that is the question.

Postby Larry.Reel » Tue Nov 15, 2016 4:28 pm

Thanks everyone,

A lot of good points, I believe I'll insulate. Sound deadening, really good point and better for the AC during the summer.

Cheers everyone

Larry
Larry.Reel
Teardrop Inspector
 
Posts: 2
Joined: Sun Oct 30, 2016 5:14 pm
Top

Re: Insulate or not to Insulate, that is the question.

Postby Andrew Herrick » Wed Nov 16, 2016 12:33 pm

If you don't want to finagle with composite walls, just insulate the roof and put curtains over your doors and windows. Those are the two most effective ways to insulate your teardrop. Insulating your walls is less effective; insulating your floor less effective still (assuming you have a foam mattress).

As for the A/C ... If you use a 5000 BTU unit, you'll find you'll have to open windows/vents while the A/C is running to prevent condensation. So you'll always be cycling air in and out of the camper, which means insulation isn't as effective as you might think.
User avatar
Andrew Herrick
Teardrop Master
 
Posts: 180
Images: 1
Joined: Mon Apr 25, 2016 5:39 pm
Location: Rolla, Missouri
Top

Re: Insulate or not to Insulate, that is the question.

Postby rowerwet » Mon Nov 21, 2016 1:13 pm

The simplest way to insulate is to glue foam or carpet to the inside of the teardrop after it is built. THe CLC 1/4" plywood stitch and glue teardrop kit insulates this way. they glue foam similar to what you find in cheap roll up camping mattresses to the inside wall to get rid of the drum like noise inside, and to prevent condensation. THey claim it works in their video.
An older idea is to buy pile carpet remnants and glue them to the inside walls. The carpet will absorb some moisture, but should avoid any major condensation problems. During the day, with the windows fully open (if they are large enough) the moisture will evaporate from the carpeting.
Either one will quiet the inside, and provide relief from solar gain, or heat loss.
User avatar
rowerwet
Gold Donating Member
 
Posts: 2044
Images: 518
Joined: Mon Apr 20, 2009 12:52 am
Location: Merrimack River Valley
Top

Re: Insulate or not to Insulate, that is the question.

Postby ae6black » Mon Nov 21, 2016 1:59 pm

I camp mostly in the winter. I've found that frost build up is always where the walls are only wood. Where there is insulation behind my wall skin, no frost builds up at all.

Art
User avatar
ae6black
Silver Donating Member
 
Posts: 219
Images: 19
Joined: Sat Jul 19, 2014 4:13 am
Location: Western Pennsylvania
Top


Return to Teardrop Construction Tips & Techniques

Who is online

Users browsing this forum: No registered users and 1 guest