Name that insulation

This is a new form of insulation I've not seen before, clinging under the attic rafters of a 1902 home in Berkeley, Calif. Can you name the bird or other critter that's developed this unique form of insulation? The white lines are plaster "keys" poking through the lathe between the ceiling joists.

Comment

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

Join Home Energy Pros

Comment by Chris Heenan on December 1, 2011 at 4:26pm

this one is creating a buzz

Comment by Guy DuBois on August 20, 2011 at 8:07am
I dare you to poke it with a stick!
Comment by hollis micklon on July 6, 2011 at 6:58am
I recently removed honeycomb with honey in it-20 lbs-have pictures too!
Comment by Bruce A. Bailey on June 30, 2011 at 8:17am
I agree with Ed. Looks like an old Hornets nest.
Comment by Barry Zeeuw on June 27, 2011 at 11:41am
Is Berkeley anywhere near the Mission of San Juan Capistrano?
Comment by George Kopf on June 20, 2011 at 10:28am
What are the dimensions (roughly)?
Comment by Ed Ballard on June 9, 2011 at 5:28pm
Looks like a hornet's nest to me.

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

Stacy Hunt posted events
1 hour ago
Rob Madden, Solar Home Broker posted blog posts
1 hour ago
Rob Madden, Solar Home Broker posted a photo
1 hour ago
Kerry Haglund posted a blog post

Efficient Windows Collaborative Releases Window Selection Tool Mobile App

The Efficient Windows Collaborative (EWC) has released a mobile app based on it web-based Window…See More
2 hours ago
Casey Gesell posted a video

Home Comfort Pays for Itself | Ideas Worth Sharing

http://www.myhomescience.com There are 88 million homes in the U.S. and Canada alone that burn twice as much fuel for heating and electricity for cooling tha...
6 hours ago
Profile IconRob Madden, Solar Home Broker, Alicia Hobbs, Rachel Scott and 2 more joined Home Energy Pros
6 hours ago
Don Fitchett posted a video

HVAC AC Compressors Training

This HVAC training sample is from the HVAC section of the Online Industrial Training Video Library (http://bin95.com/Industrial-Training-Videos/HVAC-Training...
6 hours ago
Sean Lintow Sr replied to Robert Cameron's discussion Air duct testing questions.
"#1 - outside "conditioned" space & really should not be allowed #2 - up to the AHJ if…"
9 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service