sealed soffits near fan exhaust

sealing some soffits to fix ice damming

Views: 634

Comment

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

Comment by Adin Maynard on July 30, 2011 at 4:47am
Bryce, thanks for the comment. Yes the flat was fully airsealed and brought up to R-60 with cellulose.  Each standard chute vent was improved, as can be seen in far left bay in image above. The few soffits near the bath fan were sealed to prevent exhaust air from bring brought back into the attic.  THere was plenty of 'low/high' ventilation, so this approach was taken. 
This past winter was crazy for ice damming. As a result, for attic retrofits, we are careful to improve and maintain soffit vents whenever possible.
Comment by Bryce Cramer on July 29, 2011 at 10:52am
Not sure if I understand how sealing the flow of air through the soffit will reduce ice damns. The better approach would be to stop the heat loss through the attic floor with a better insulation job. Then provide proper ventilation so that the roof deck remains cold and does not therefore melt snow that refreezes over a cold soffit. If the bathroom vent is just vented into the soffit area, I would think this would cause additional issues. The warm air (moist) air will hang inside the soffit area since the soffit is now sealed from the rest of the atiic....this should lead to moisture, mold and other problems in the roof deck above this soffit area.

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Shashank Kirloskar posted a blog post

Top 8 Solar Panel Manufacturers in India

Non-Renewable resources are reducing rapidly. Powering homes and offices through other means,…See More
1 hour ago
Avi Yashchin posted a blog post
3 hours ago
Laura Langham posted an event
Thumbnail

Residential Home Energy Efficiency Workshop - Greensboro, NC at Kathleen Clay Edwards Library – 1420 Price Park Drive, Greensboro, N.C. 27410

March 3, 2015 from 6:30pm to 8pm
Free Home Energy Conservation Workshop: Greensboro – 3/5/15Register for the Greensboro workshop…See More
8 hours ago
EnergyLogic Academy posted an event
Thumbnail

RESNET Rater Training Phase II at Denver, CO

May 11, 2015 to May 14, 2015
Join us in Beautiful Denver, CO!The field portion of HERS Rater Training is 4 days of field…See More
8 hours ago
Jim Gunshinan replied to Jim Gunshinan's discussion When your shower is in your kitchen...
"With more and more builders in crowded, expensive-to-rent-in cities like New York creating…"
8 hours ago
Home Energy Magazine's blog post was featured
8 hours ago
Profile IconBilly Ray Griffin and Lee Blanchard joined Home Energy Pros
9 hours ago
Home Energy Magazine posted a discussion
9 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service