Insulation Information and Data

From how heat transfer works to recommended levels of building INSULATION, the links below point to documents that provide useful information on INSULATION.

Definitions of Common Heat Transfer and Insulation Terms
This document provides the definitions to terms that are commonly used in discussions and explanations of how heat transfer and insulation work.

How Heat Transfer Works
The more difficult it is to transfer heat into or out of a structure the less energy required to maintain the desired temperature. This document discusses the three types of heat transfer.

How Insulation Properties are Measured
This document discusses the methods used to measure and communicate the insulating property of a material or a construction assembly.

Effect of Moisture on Building Systems
This document discusses how moisture enters and leaves a structure and the problems that insulation can create in this changing process using typical insulation methods. In addition, it covers six things that should be considered to avoid moisture problems.

Types of Building Insulation
This document discusses several types of building insulation materials that can be use to insulate a building and basic information such as the insulation material R-values and thickness needed to achieve the recommended insulation level.

R-Values of Common Building Materials
The R-value of a material determines its ability to retard the flow of heat across it. This document contains several tables that provide the R-value of some of the more common surfaces found on buildings in the U.S. for walls, doors, windows, ceilings and roofs.

Recommended Levels of Building Insulation
R-value, established by the U.S. Dept. of Energy for walls, ceilings, floors, and other areas of a home are provided in this document by the area in which the home is located.

The Thermal Envelope
The document discusses a new approach to building insulation in hot and humid climates. This method is called the thermal envelope or closed attic approach.

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