Join Early Retirement Today
Reply
 
Thread Tools Search this Thread Display Modes
Old 09-11-2011, 11:03 AM   #21
Thinks s/he gets paid by the post
DFW_M5's Avatar
 
Join Date: Sep 2003
Posts: 4,982
Quote:
Originally Posted by TromboneAl View Post
Well, the objective is to not have to get ice as often (dig out the cooler, pour off the water, repack). Also, sometimes getting ice might mean an extra trip into town or an extra stop on the highway. Sometimes ice simply isn't available.
But if that extra trip into town is done on your bicycle, that would be a good thing
__________________

__________________
DFW_M5 is online now   Reply With Quote
Join the #1 Early Retirement and Financial Independence Forum Today - It's Totally Free!

Are you planning to be financially independent as early as possible so you can live life on your own terms? Discuss successful investing strategies, asset allocation models, tax strategies and other related topics in our online forum community. Our members range from young folks just starting their journey to financial independence, military retirees and even multimillionaires. No matter where you fit in you'll find that Early-Retirement.org is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with our members, see fewer ads, upload photographs, create a retirement blog, send private messages and so much, much more!

Old 09-11-2011, 05:06 PM   #22
Give me a museum and I'll fill it. (Picasso)
Give me a forum ...
Moemg's Avatar
 
Join Date: Jan 2007
Location: Sarasota,fl.
Posts: 10,039
Quote:
Originally Posted by donheff View Post
I never thought I could think such a thing but I believe it is time for you to go back to work Al.
Now let's not be hasty . It's a step up from his super powered electric toothbrush which doubled as a vibrator !
__________________

__________________
Moemg is offline   Reply With Quote
Old 09-15-2011, 11:52 AM   #23
Moderator Emeritus
Nords's Avatar
 
Join Date: Dec 2002
Location: Oahu
Posts: 26,620
Quote:
Originally Posted by TromboneAl View Post
Consider the TromboneAl supercooler, which has an outer layer of reflectorized bubble wrap:
If the cooler is covered with something opaque, such as a sleeping bag, does the shiny aluminum material make any difference for keeping the interior cold? IOW, does the reflector help, even if the cooler isn't in the direct rays of the sun?
Here in Hawaii we wrap our reflective foil in roofing materials.

The foil both reflects the IR (from wherever it originates and propagates) while the quilted-bubble design provides an air-insulation buffer.

We're getting ready to put a new roof on our familyroom. The ceiling will be plywood cleverly routed to look like tongue & groove planks. Above that will be a two-inch layer of icynene foam. Above that will be a layer of plywood with radiant-foil insulation integrated into it. We're hoping for about R-15 to R-19.

I've crawled through our attics installing the rolls of radiant foil, and the difference is an immediate 10-15 degrees just underneath the foil.

As for that Internet source on IR propagation, consider that an IR imaging device can see through walls and other very non-transparent materials like black smoke. So either IR can penetrate through those objects or the Internet is somehow mistaken.
__________________
*
*

The book written on E-R.org, "The Military Guide to Financial Independence and Retirement", on sale now! For more info see "About Me" in my profile.
I don't spend much time here anymore, so please send me a PM. Thanks.
Nords is offline   Reply With Quote
Old 09-15-2011, 12:19 PM   #24
Recycles dryer sheets
IBWino's Avatar
 
Join Date: May 2006
Posts: 423
Quote:
Originally Posted by Nords View Post
Here in Hawaii we wrap our reflective foil in roofing materials.

The foil both reflects the IR (from wherever it originates and propagates) while the quilted-bubble design provides an air-insulation buffer.

We're getting ready to put a new roof on our familyroom. The ceiling will be plywood cleverly routed to look like tongue & groove planks. Above that will be a two-inch layer of icynene foam. Above that will be a layer of plywood with radiant-foil insulation integrated into it. We're hoping for about R-15 to R-19.

I've crawled through our attics installing the rolls of radiant foil, and the difference is an immediate 10-15 degrees just underneath the foil.

As for that Internet source on IR propagation, consider that an IR imaging device can see through walls and other very non-transparent materials like black smoke. So either IR can penetrate through those objects or the Internet is somehow mistaken.
I've often considered adding a radiant barrier to our attic, but I've read that after a few years of dust accumulation, the radiant barrier is no longer effective. Have you had any issues with dust accumulation?
__________________
IBWino is offline   Reply With Quote
Old 09-15-2011, 01:38 PM   #25
Moderator Emeritus
Nords's Avatar
 
Join Date: Dec 2002
Location: Oahu
Posts: 26,620
Quote:
Originally Posted by IBWino View Post
I've often considered adding a radiant barrier to our attic, but I've read that after a few years of dust accumulation, the radiant barrier is no longer effective. Have you had any issues with dust accumulation?
Apparently not. We've had the stuff up in some of our attics for over five years, and there's no reduction in performance.

The early reflective foil was silver on one side and white on the other. It turned out that the white plastic would embrittle after a few years and flake down from the ceiling. That was a hellacious mess, but we've had no problems with the silver-on-both-sides version.
__________________
*
*

The book written on E-R.org, "The Military Guide to Financial Independence and Retirement", on sale now! For more info see "About Me" in my profile.
I don't spend much time here anymore, so please send me a PM. Thanks.
Nords is offline   Reply With Quote
Old 09-15-2011, 03:38 PM   #26
Recycles dryer sheets
IBWino's Avatar
 
Join Date: May 2006
Posts: 423
Quote:
Originally Posted by Nords View Post
I've crawled through our attics installing the rolls of radiant foil, and the difference is an immediate 10-15 degrees just underneath the foil.
Nords,
I'm very interested in this. Was the radiant foil rolled out over the top of existing attic insulation, or stapled to the rafters overhead?
__________________
IBWino is offline   Reply With Quote
Old 09-15-2011, 06:05 PM   #27
Moderator Emeritus
Nords's Avatar
 
Join Date: Dec 2002
Location: Oahu
Posts: 26,620
Quote:
Originally Posted by IBWino View Post
Nords,
I'm very interested in this. Was the radiant foil rolled out over the top of existing attic insulation, or stapled to the rafters overhead?
"Over the top of existing attic insulation". That's pretty funny. We try to keep the heat from coming down through the attic from the roof into the house rather than rising up from below.

Our house was built in 1989 using "modern" double-wall construction yet it had no insulation. None. (Some newer-- and very expensive-- homes have insulation to lower the A/C bills, but A/C isn't necessary for most of the island.) Over the years as we've opened various walls, we've stuck sheets of the radiant foil into the stud bays.

In the attics I staple the foil to the rafters as close to the roof as I can. The idea is to stop it at the roof and keep it from coming into the attic or warming up the ceilings of the rooms below. I'd start at sunrise (when the attic was still around 70 degrees). The hardest part of the job was making sure that you didn't fall through the attic floor/house ceiling.

Our renovated familyroom is going to have insulation in the walls (hopefully shredded denim or icynene) as well as the ceiling, and double-pane windows. Again this is all designed to keep the heat out (we don't use A/C). It'll also have two ceiling fans to move the air across the peaked ceiling, but we're hoping that it'll stay too cold to turn them on...
__________________
*
*

The book written on E-R.org, "The Military Guide to Financial Independence and Retirement", on sale now! For more info see "About Me" in my profile.
I don't spend much time here anymore, so please send me a PM. Thanks.
Nords is offline   Reply With Quote
Old 09-15-2011, 07:16 PM   #28
Recycles dryer sheets
IBWino's Avatar
 
Join Date: May 2006
Posts: 423
@Nords,
Thanks. Here in the Sonoma Co. CA, I need to do both: keep heat in during winter, keep heat out during summer. Therefore, our attic has blown-in loose-fill fiberglass insulation (truly awful stuff to work in, BTW) on the attic floor. The easiest way for me to install a radiant barrier would be to roll it out over the top of the existing insulation. But I believe the best way is to do what you did (staple to the rafters), although I'd have to recruit some help to do it that way. It's definitely a winter project.
__________________

__________________
IBWino is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
It's only Physics...But I'm Confused mickeyd Other topics 27 07-30-2011 12:32 PM

 

 
All times are GMT -6. The time now is 11:01 AM.
 
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.