CM 2112 INSULATION FINAL VERIFIED STUDY GUIDE
Abrasion Resistance: - Answers - The ability of a material to withstand abrasion without
appreciative erosion.
Absorption: - Answers - The process of drawing fluid or gas into a porous material, such
as a sponge soaking up water.
Abuse Coverings and Finishes: - Answers - Jackets, mastics, or films used to protect
insulation from mechanical and personnel abuse.
Added R-value: - Answers - Thermal resistance added to a construction element by
insulation.
Adhesive: - Answers - A substance used to bond materials by surface attachment.
Aerogel: - Answers - A homogeneous, low-density solid-state material derived from a
gel, in which the liquid component of the gel has been replaced with a gas.
Air Space: - Answers - The area between insulation facing and the interior of exterior
wall coverings. Normally a 1-inch air gap.
Aluminum Foil: - Answers - Thin sheet of rolled aluminum (0.15 mm thick and under).
Anti-Abrasive Coating: - Answers - Cushioning material applied where insulation
contacts pipe, duct, vessel, or adjacent insulation to prevent eroding of either or both.
Asbestos: - Answers - The generic name for those silicate minerals that cleave naturally
into fibers, the three important forms being chrysotile (white), crocidolite (blue), and
amosite.
Bands: - Answers - Strapping used to fasten insulation and/or jacketing in place.
Binder: - Answers - Substance contained in insulation material that stabilizes the fibers
(sometimes called a thermal setting resin).
Blanket Insulation, Metal Mesh: - Answers - Blanket insulation covered by flexible metal-
mesh facings attached on one or both sides.
Blanket Insulation: - Answers - Insulation of flexible type, formed into sheets or rolls,
usually with a vapor barrier on side and with or without a container sheet on the other
side.
, Block Insulation: - Answers - Semi-rigid insulation formed into sections, rectangular both
in plan and cross section, usually 90-120 cm (3 - 4 ft) long, 15-60 cm wide (0.5 - 2 ft),
and 2.5-15 cm (1-6 in) thick.
Blocking: - Answers - A material used to retain the insulation in place in open areas.
Board Insulation: - Answers - Semi-rigid insulation formed into sections, rectangular
both in plan and cross section, usually more than 120 cm (4 ft) long, 60-75 cm (2 - 2.5
ft) wide, and up to 10 cm (4 in )thick.
Breather Coating: - Answers - A weather barrier coating designed to prevent water (rain,
snow, sleet, spillage, wash water, etc.) from entering the insulation system, while still
allowing the escape of small quantities of water vapor resulting from heat applied to the
moisture entrapped in the insulation.
Butt Joints (insulation): - Answers - The end joints of pipe insulation.
Butt Strip: - Answers - Strips of similar jacket material applied around pipe insulation
butt joints.
Calcium Silicate Insulation: - Answers - Insulation composed principally of hydrous
calcium silicate, and which usually contains reinforcing fibers.
Canvas: - Answers - A closely woven fabric of cotton, flax, hemp, or jute characterized
by strength and firmness.
Cavity: - Answers - Empty space between studs/joists in which insulation is placed.
Cellular Elastomeric Insulation: - Answers - Insulation composed principally of natural or
synthetic elastomers, or both, processed to form a flexible, semi-rigid, or rigid foam that
has a closed-cell structure.
Cellular Glass (Foamed Glass): - Answers - A lightweight expanded glass with small
cells, preferably nonintercommunicating (i.e., small, individual cells separated from each
other), produced by a foaming process.
Cellular Insulation: - Answers - Insulation composed of small, individual cells separated
from each other. The material may be glass or plastic such as polystyrene,
polyurethane, polyisocyanurate, or elastomeric.
Ceramic Fiber: - Answers - Fibrous material, loose or fabricated into convenient forms,
mainly intended for use at appropriate elevated temperatures. The fibers may consist of
silica (SiO2) or of an appropriate metal silicate, e.g., aluminosilicate. Alternatively, they
may be formed synthetically from appropriate refractory metal oxides, e.g., alumina,
zirconia.
Abrasion Resistance: - Answers - The ability of a material to withstand abrasion without
appreciative erosion.
Absorption: - Answers - The process of drawing fluid or gas into a porous material, such
as a sponge soaking up water.
Abuse Coverings and Finishes: - Answers - Jackets, mastics, or films used to protect
insulation from mechanical and personnel abuse.
Added R-value: - Answers - Thermal resistance added to a construction element by
insulation.
Adhesive: - Answers - A substance used to bond materials by surface attachment.
Aerogel: - Answers - A homogeneous, low-density solid-state material derived from a
gel, in which the liquid component of the gel has been replaced with a gas.
Air Space: - Answers - The area between insulation facing and the interior of exterior
wall coverings. Normally a 1-inch air gap.
Aluminum Foil: - Answers - Thin sheet of rolled aluminum (0.15 mm thick and under).
Anti-Abrasive Coating: - Answers - Cushioning material applied where insulation
contacts pipe, duct, vessel, or adjacent insulation to prevent eroding of either or both.
Asbestos: - Answers - The generic name for those silicate minerals that cleave naturally
into fibers, the three important forms being chrysotile (white), crocidolite (blue), and
amosite.
Bands: - Answers - Strapping used to fasten insulation and/or jacketing in place.
Binder: - Answers - Substance contained in insulation material that stabilizes the fibers
(sometimes called a thermal setting resin).
Blanket Insulation, Metal Mesh: - Answers - Blanket insulation covered by flexible metal-
mesh facings attached on one or both sides.
Blanket Insulation: - Answers - Insulation of flexible type, formed into sheets or rolls,
usually with a vapor barrier on side and with or without a container sheet on the other
side.
, Block Insulation: - Answers - Semi-rigid insulation formed into sections, rectangular both
in plan and cross section, usually 90-120 cm (3 - 4 ft) long, 15-60 cm wide (0.5 - 2 ft),
and 2.5-15 cm (1-6 in) thick.
Blocking: - Answers - A material used to retain the insulation in place in open areas.
Board Insulation: - Answers - Semi-rigid insulation formed into sections, rectangular
both in plan and cross section, usually more than 120 cm (4 ft) long, 60-75 cm (2 - 2.5
ft) wide, and up to 10 cm (4 in )thick.
Breather Coating: - Answers - A weather barrier coating designed to prevent water (rain,
snow, sleet, spillage, wash water, etc.) from entering the insulation system, while still
allowing the escape of small quantities of water vapor resulting from heat applied to the
moisture entrapped in the insulation.
Butt Joints (insulation): - Answers - The end joints of pipe insulation.
Butt Strip: - Answers - Strips of similar jacket material applied around pipe insulation
butt joints.
Calcium Silicate Insulation: - Answers - Insulation composed principally of hydrous
calcium silicate, and which usually contains reinforcing fibers.
Canvas: - Answers - A closely woven fabric of cotton, flax, hemp, or jute characterized
by strength and firmness.
Cavity: - Answers - Empty space between studs/joists in which insulation is placed.
Cellular Elastomeric Insulation: - Answers - Insulation composed principally of natural or
synthetic elastomers, or both, processed to form a flexible, semi-rigid, or rigid foam that
has a closed-cell structure.
Cellular Glass (Foamed Glass): - Answers - A lightweight expanded glass with small
cells, preferably nonintercommunicating (i.e., small, individual cells separated from each
other), produced by a foaming process.
Cellular Insulation: - Answers - Insulation composed of small, individual cells separated
from each other. The material may be glass or plastic such as polystyrene,
polyurethane, polyisocyanurate, or elastomeric.
Ceramic Fiber: - Answers - Fibrous material, loose or fabricated into convenient forms,
mainly intended for use at appropriate elevated temperatures. The fibers may consist of
silica (SiO2) or of an appropriate metal silicate, e.g., aluminosilicate. Alternatively, they
may be formed synthetically from appropriate refractory metal oxides, e.g., alumina,
zirconia.
