Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-31-2009, 12:01 PM   #1
Newbie
 
Join Date: Jan 2009
Posts: 1
Share |
Default

HUGE Icicle problem & Heat Loss


I've had major problems with heat loss on this 1950s bungalow. As you can see from the attached pictures, it is all over the roof. I just refinished the upstairs, putting some R30 insulation along the roof and R15 along the walls. unfortunately, I didn't think about insulating the heat vents that run in the eves, under the 2nd floor windows (see pics).

On the back of the house, the underside of the roof is still accessible, as it isn't finished.

I need major help in the best approach to solving this head loss.
Attached Thumbnails
HUGE Icicle problem & Heat Loss-dsc03699.jpg   HUGE Icicle problem & Heat Loss-dsc03702.jpg  

zaibas is offline   Reply With Quote
Old 01-31-2009, 12:53 PM   #2
Member
 
Join Date: Dec 2008
Location: South Western Ontario
Posts: 955
Default

HUGE Icicle problem & Heat Loss


Try this website www.buildingscience.com to understand what's going on in there

Chemist1961 is offline   Reply With Quote
Old 01-31-2009, 12:53 PM   #3
Member
 
Join Date: Dec 2008
Location: South Western Ontario
Posts: 955
Default

HUGE Icicle problem & Heat Loss


Sorry ,review ice dams on that site
Chemist1961 is offline   Reply With Quote
Old 02-01-2009, 10:48 AM   #4
Newbie
 
Join Date: Feb 2009
Posts: 1
Question

HUGE Icicle problem & Heat Loss


I'm experiencing similar problems. I just added R-30 over the existing (albeit old and compressed) insulation. I'm wondering if I should further install rigid foam to the roof rafters. There would still be adequate ventilation from the soffit to the ridge vent, and I'm thinking rigid insulation would enhance the R-30 that I just put down. Any thoughts on this?
Thanks!
Retired Flyboy is offline   Reply With Quote
Old 02-01-2009, 12:08 PM   #5
Electric Radiant Heating
 
warmsmeallup's Avatar
 
Join Date: Apr 2008
Posts: 205
Default

HUGE Icicle problem & Heat Loss


The truth is that there are just going to be winters, like this one, that product ice dams more severely than others. We have installed many ice melting systems in gutters and on/under roofs that were designed to be 'cold roofs' yet still have ice damming. The heat from your home will escape no matter how much you insulate it. It will radiate through the walls, windows, ceilngs and roofs. No matter how much you insulate, it will, eventually, make it's way out and will melt the snow on your roof (along with the sun), the water will run down to a point where it is no longer warmed from escaping heat and refreeze. That is usually at the drip edge or in valley's. Then it just depends on the winter and how many times this is allowed to occur whether-or-not it's going to be able to build up far enough to get under the ice/water shield (if you have any at all) and cause damage.

You can throw 12 more inches of insulation on top of the 12 you and have.. heat will still seek the cold.

P.S. I am in no way saying not to insulate. By all means, insulate your heart out. I did. It helps to keep the heat in as long as possible to make the most use of it. But it will have little effect on the melting snow during winters like this one.
__________________
www.comfortradiant.net

Last edited by warmsmeallup; 02-01-2009 at 12:11 PM.
warmsmeallup is offline   Reply With Quote
Old 02-01-2009, 03:33 PM   #6
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Default

HUGE Icicle problem & Heat Loss


I have an R38 sunroom roof that faces south, properly vented
Gutters have been frozen pretty much for the past month due to snow storms. Snow fell without wind & covered the roof. Just enough sun every day to melt the stuff in the gutters & refreeze.
No leaks inside, I used ice shield all the way up the roof - well worth the added cost

Scuba_Dave is offline   Reply With Quote
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
New Thermostat- Heat comes on when on "Cool" daviar HVAC 3 06-29-2008 05:24 PM
2 stage heat thermostat problem W1 AND w2 wires whatdoIdonow HVAC 6 11-26-2006 12:04 AM
Exterior brick wall has cracks and moves...is this a huge problem? ConstantChange Building & Construction 3 06-16-2006 09:09 AM
Heat pump problem trprider HVAC 1 07-21-2005 11:15 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.