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.

Views: 208

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

Laurie DiDonato posted an event
Thumbnail

HERS Rater Training at Online and United Illuminating Company

June 1, 2015 at 9am to June 18, 2015 at 4pm
The Northeast HERS Alliance is offering a NEW Hybrid Rater training course designed to prepare…See More
23 minutes ago
Paul Raymer's blog post was featured

Shades of Gray in Residential Construction Morality

I was called in to perform a last minute duct test for a modular home builder.  He was all in a…See More
1 hour ago
Charlie Hewitt's blog post was featured

Residential Electric Load Disaggregation

“What gets measured gets managed” is a quote often attributed to the venerable management expert…See More
1 hour ago
Paul Haasz joined Evan Mills's group
Thumbnail

Home Energy Ratings

Calculating them; visualizing them; explaining them; selling them .... there is a lot to discuss…See More
19 hours ago
Paul Haasz joined James Sayers's group
Thumbnail

Marketing Energy Efficiency

Sharing ideas, tools and examples of promoting energy efficiency to consumersSee More
20 hours ago
Paul Haasz joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
20 hours ago
Paul Haasz joined Leslie McDowell, BPI's group
Thumbnail

Building Performance Institute (BPI)

BPI is the nation's premier standards development, quality assurance and credentialing organization…See More
20 hours ago
Paul Haasz joined Sean Lintow Sr's group
Thumbnail

Best Practices (Residential)

Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what…See More
20 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service