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INTERIORS of BUILDINGS ASBESTOS IDENTIFICATION in BUILDINGS ATTIC LEAKS, CONDENSATION & ATTIC MOLD BLOWER DOORS & AIR INFILTRATION ENVIRONMENTAL HAZARDS HEAT LOSS CALCULATIONS HUMIDITY LEVEL TARGET ICE DAM PREVENTION INSULATION INSPECTION & IMPROVEMENT Asbestos Identification in Buildings Asbestos Pipe Insulation Asbestos-Free Insulation Materials Balsam Wool Batt Insulation Cotton Insulating Batts Cellulose loose fill insulation Fiberglass Insulation Foam Board Insulation Foam Insulation Types - Visual Id Homasote & Other Insulating Board Icynene Foam Spray Insulation Insects & Foam Insulation Mineral Wool - Rock Wool Insulation Mold in Fiberglass Insulation Mold in Foam Insulation Paper Duct Insulation Perlite Insulation PHENOLIC FOAM INSULATION POLYISOCYANURATE FOAM INSULATION POLYISOCYANURATE FOAM BELOW SLABS POLYSTYRENE FOAM INSULATION PASCAL CALCULATIONS RADIANT BARRIERS RIGID FOAM USE INDOORS Urea Formaldehyde Foam Insulation UFFI URETHANE FOAM Deterioration, Outgassing Vermiculite Insulation HEAT LOSS CALCULATIONS INSULATION LOCATION for BASEMENT FLOORS INSULATION LOCATION for BRICK VENEER WALLS INSULATION LOCATION for CAPES, CRAWLSPACES INSULATION LOCATION for CATHEDRAL CEILINGS INSULATION LOCATION for GREENHOUSE or SOLARIUM INSULATION R-Values & Properties Mold Growth Resistance of Foam Insulation More Information InspectAPedia ® Home & Site Map |
This page illustrates and describes balsam wool and wood product insulation materials. I've added these examples because of frequent questions about these materials. This document assists building buyers, owners or inspectors who need to identify various insulation materials in buildings by simple visual inspection. We provide photographs and descriptive text of balsam wool insulation and other wood insulating products to permit identification of these materials in buildings. © Copyright 2010 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use links at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. BALSAM WOOL - Balsam Wool Insulation is a wood product and does not contain asbestos
The wood product insulating batts shown in these photos was produced by Weyerhauser corporation. In the right hand (and page top) photo of this insulation (basically chopped wood fibers, probably treated with a fire retardant), you can see the brown/tan fibers of insulating material. We advise against cutting the kraft paper covering these insulation batts as if the paper is cut a large amount of the insulating material is likely to simply fall out. If you must make a cut to test or confirm the material or its condition, the cut should be just an inch or so, and you should tape the cut closed after your inspection. "Balsam Wool" is also a wood product or "cellulose" insulation that was widely used in homes in the U.S. in the 1940's and possibly earlier. We estimate that balsam wool has an R value of about 2 to 3.5 in loose fill and about 2 to 3.25 in batts, and we've seen some estimates of an R value of 3.4 per inch for versions of insulation that contain a mixture of wood fibers and chopped paper. To compare insulating material R-values see our Table of Properties of Insulating Materials ... Technical Reviewers & References
Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. ASBESTOS IDENTIFICATION IN BUILDINGS
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01/28/2010 - 01/07/2006 - InspectApedia.com/interiors/Balsam_Wool_Insulation.htm - © 2010 - 1988 Copyright Daniel Friedman All Rights Reserved - InspectAPedia® is a Registered U.S. Trademark