A measure of the warmth or coldness of a substance, object, or environment with reference to some standard value

An instrument for measuring temperature, consisting typically of a glass tube with a numbered scale and a bulb containing a liquid that rises and falls with changes in temperature

The transfer of heat from the warmer to the color particles of a medium or of two bodies in direct contact, occurring without perceptible displacement of the particles themselves

The transfer of heat by the circulatory motion of the heated parts of a liquid or gas owing to a variation in density and the action of gravity

The process in which energy in the form of waves or particles is emitted by one body, passed through an intervening medium or space, and absorbed by another body

The time rate of heat flow through a unit area of a given material of unit thickness when the temperature difference across the thickness is one unit of temperature

The time rate of heat flow through a unit area of a given material when the temperature difference across a specified thickness of the material is one unit of temperature

The reciprocal of thermal conductance, expressed as the temperature difference required to cause heat to flow through a unit area of a material of given thickness at the rate of one unit per unit time

The time rate of heat flow through a unit area of a building component or assembly when the difference between the air temperatures on the two sides of the component or assembly is one unit of temperature

A measure of thermal resistance of a given material, used esp. to specify the performance of thermal insulation

A measure of thermal resistance of a building component or assembly

An element of low thermal conductivity placed in an assembly to reduce the flow of heat between highly conductive materials

The flow of outside air into an interior space through cracks around windows and doors or other openings in the envelope of a building

A strip of metal, felt, vinyl, or foam rubber, placed between a door or window sash and its frame to provide a seal against windblown rain and air infiltration

Any of the various lightweight, inorganic, fibrous materials used esp. for thermal and sound insulation

Spun glass fibers resembling wool and used for thermal insulation and air filters

Mineral wool made by blowing steam or air through molten slag or rock

Fine wood shavings, usually of pine or chemically treated wood fibers, used as an insulating material, as a binder in plaster, and for packing

Flexible, fibrous thermal insulation of glass or mineral wool. Also used as a component in sound-insulating construction

A preformed, nonstructural insulating board of foamed plastic or cellular glass. It is fire-resistant, impervious to moisture, and dimensionally stable, but has a lower thermal-resistance value.

Thermal insulation in the form of a foamed plastic, such as polyurethane, that is sprayed or injected into a cavity where it adheres to the surrounding surfaces

Thermal insulation in the form of mineral wool fibers, granular vermiculite or perlite, or treated cellulosic fibers, poured by hand or blown through a nozzle into a cavity or over a supporting membrane

Thermal insulation in the form a material of high reflectivity and low emissivity used in conjuction with a dead-air space to reduce the transfer of heat by radiation

A material providing high resistance to heat flow

A material consisting of extremely fine filaments of glass, woven into fabric, massed for use as a thermal and acoustical insulator, or embedded to reinforce various materials

Cellular glass made by foaming softened glass and molding it into boards or blocks for use as thermal insulation

An insulating board made of wood or cane fibers compressed and cemented into rigid sheets, used as an inexpensive wall finish or as ceiling tiles

Insulating fiberboard treated or impregnated with asphalt for water resistance and used primarily for sheathing light wood frame walls

A strong, usually brown paper, processed from wood pulp and sized with resin

Trademark for a brand of fiberglass

Trademark for a brand of foamed plastic made from polystyrene

Plastic made light and cellular by the introduction of pockets of gas or air and used as thermal insulation

A rigid expanded polyurethane having a closed-cell structure and used as thermal insulation

A rigid polystyrene foam having an open-cell structure and used as a thermal insulation

A rigid polystyrene foam having an closed-cell structure and used as a thermal insulation

The passageway required for the circulation of air between batt insulation and roof sheathing

To make a house or building secure against cold or stormy weather, as by adding thermal insulation or storm windows, or by sealing joints

An unventilated air space in which the air does not circulate

The ability of a surface to emit heat by radiation, equal to the ratio of the radiant energy emitted to that emitted by a black body at the same temperature

Human comfort as determined by the ability of the body to dissipate the heat and moisture it produces by metabolic action

The range of dry-bulb temperature, relative humidity, mean radiant temperature, and air movement judged to be comfortable

Heat energy transmitted by the radiation of electromagnetic waves in contrast to heat transmitted by conduction or convection

A pipe by which products of combustion are carried from a furnace or other appliance to the outside

The air required for combustion of fuel in a furnace

An apparatus in which heat is produced

A device that automatically responds to changes in temperature and activates switches controlling such equipment