Material Details

Used to view and manipulate material details including physical and thermal properties, and adding and removing material definitions.

The Materials Manager Material Details panel displays physical and thermal properties of selected material definitions with options for changing these values, and for adding/removing materials from the materials database.

Setting	Description
Material Details	Each material contains a list of physical and thermal properties data. This data can be edited to suit your project’s needs. A typical material may have the following physical and thermal properties: Density — The material density or mass per unit volume. Conductivity — The property of a material that indicates its ability to conduct heat. Specific heat — The amount of heat required to change a material's temperature by a given amount. Vapor resistivity — The time and pressure needed to force a unit amount of water vapor through the material layer. Inner Surface Emissivity — The measure of the efficiency in which an inner surface emits thermal energy. It is defined as the fraction of energy being emitted relative to that emitted by a thermally black surface (a black body). A black body is a material that is a perfect emitter of heat energy and has an emissivity value of 1. A material with an emissivity value of 0 would be considered a perfect thermal mirror. Outer Surface Emissivity — The measure of the efficiency in which an outer surface emits thermal energy. It is defined as the fraction of energy being emitted relative to that emitted by a thermally black surface (a black body). A black body is a material that is a perfect emitter of heat energy and has an emissivity value of 1. A material with an emissivity value of 0 would be considered a perfect thermal mirror.
Material Details for Glass	When a glass material is selected from the Materials tab, additional glass lighting properties are enabled. Density — The material density or mass per unit volume. Conductivity — The property of a material that indicates its ability to conduct heat. Specific heat — The amount of heat required to change a material's temperature by a given amount. Vapor resistivity — The time and pressure needed to force a unit amount of water vapor through the material layer. Light transmittance — Displays the amount of daylight striking the glass glazing that passes through to the inside as a ratio. Glass containing glazing with a high light transmittance appear relatively clear and provide sufficient daylight and unaltered views; however, they can create glare problems. Glass containing glazing with low light transmittance are best used in highly glare-sensitive conditions, but can create gloomy interiors under some weather conditions and diminished views. Average solar transmission — Displays Average solar transmission for the selected glass material. Solar transmission refers to the ratio of the amount of total solar energy in the full solar wavelength range (300-2,100 nanometers) that is allowed to pass through a glazing system to the amount of total solar energy falling on that glazing system. An average is computed using the glazing database solar transmission data for solar transmission angles between 0° and 90°. Average solar reflection — Displays Average solar reflection for the selected glass material. Solar reflectance refers to the ratio of total solar energy which is reflected outward by the glazing system to the amount of total solar energy falling on the glazing system. On filmed windows this reflectance is a function of the side of the film facing the window surface. An average is computed using the glazing database solar reflection data for solar reflection angles between 0° and 90°. Transmission/Reflection data — Displays transmission and reflectance values for angles between 0° and 90° in a tabular form. The table columns are: Angle – Displays incident light angles between 0° and 90° in 5° increments. Transmission – Displays the amount of light transmitted through the glass for each of the angle measurements. Reflection – Displays the amount of light reflected by the glass for each of the angle measurements. Graph — Displays the transmission and reflectance data for angles between 0° and 90° with two curves on a graph. The transmission curve is colored red and the reflectance curve is colored blue. The graph axes are: Angle – The graph’s X axis plots the angles between 0° and 90°. Value – The graph’s Y axis plots the values for transmittance and reflection for angles between 0° and 90°.

Setting

Description

Material Details

Each material contains a list of physical and thermal properties data. This data can be edited to suit your project’s needs. A typical material may have the following physical and thermal properties:

Density — The material density or mass per unit volume.
Conductivity — The property of a material that indicates its ability to conduct heat.
Specific heat — The amount of heat required to change a material's temperature by a given amount.
Vapor resistivity — The time and pressure needed to force a unit amount of water vapor through the material layer.
Inner Surface Emissivity — The measure of the efficiency in which an inner surface emits thermal energy. It is defined as the fraction of energy being emitted relative to that emitted by a thermally black surface (a black body). A black body is a material that is a perfect emitter of heat energy and has an emissivity value of 1. A material with an emissivity value of 0 would be considered a perfect thermal mirror.
Outer Surface Emissivity — The measure of the efficiency in which an outer surface emits thermal energy. It is defined as the fraction of energy being emitted relative to that emitted by a thermally black surface (a black body). A black body is a material that is a perfect emitter of heat energy and has an emissivity value of 1. A material with an emissivity value of 0 would be considered a perfect thermal mirror.

Material Details for Glass

When a glass material is selected from the Materials tab, additional glass lighting properties are enabled.

Density — The material density or mass per unit volume.
Conductivity — The property of a material that indicates its ability to conduct heat.
Specific heat — The amount of heat required to change a material's temperature by a given amount.
Vapor resistivity — The time and pressure needed to force a unit amount of water vapor through the material layer.
Light transmittance — Displays the amount of daylight striking the glass glazing that passes through to the inside as a ratio. Glass containing glazing with a high light transmittance appear relatively clear and provide sufficient daylight and unaltered views; however, they can create glare problems. Glass containing glazing with low light transmittance are best used in highly glare-sensitive conditions, but can create gloomy interiors under some weather conditions and diminished views.
Average solar transmission — Displays Average solar transmission for the selected glass material. Solar transmission refers to the ratio of the amount of total solar energy in the full solar wavelength range (300-2,100 nanometers) that is allowed to pass through a glazing system to the amount of total solar energy falling on that glazing system. An average is computed using the glazing database solar transmission data for solar transmission angles between 0° and 90°.
Average solar reflection — Displays Average solar reflection for the selected glass material. Solar reflectance refers to the ratio of total solar energy which is reflected outward by the glazing system to the amount of total solar energy falling on the glazing system. On filmed windows this reflectance is a function of the side of the film facing the window surface. An average is computed using the glazing database solar reflection data for solar reflection angles between 0° and 90°.
Transmission/Reflection data — Displays transmission and reflectance values for angles between 0° and 90° in a tabular form. The table columns are:
- Angle – Displays incident light angles between 0° and 90° in 5° increments.
- Transmission – Displays the amount of light transmitted through the glass for each of the angle measurements.
- Reflection – Displays the amount of light reflected by the glass for each of the angle measurements.
Graph — Displays the transmission and reflectance data for angles between 0° and 90° with two curves on a graph. The transmission curve is colored red and the reflectance curve is colored blue. The graph axes are:
- Angle – The graph’s X axis plots the angles between 0° and 90°.
- Value – The graph’s Y axis plots the values for transmittance and reflection for angles between 0° and 90°.