Table of contentsNo headers
- Revit Architecture
- Revit MEP
A Construction is a combination of layers, such as a wall or a roof. If the “Export Defaults” under Energy Settings in Project Information is not checked, this element is not exported.
|Attribute ||Description |
|Id ||Unique identifier for the layer. Normally prefixed with mat-. |
|Element ||Description |
|Name || |
|R-value ||A measure of the thermal resistance (or resistance to heat loss) through a material layer of a given thickness. R-value = Thickness / Conductivity. |
NoteIn cases where a specific material layer relates to an air gap, a material of non-uniform thickness (such as metal decking or an I beam) or combination of materials (such as a metal stud partition - air and steel) manual adjustments to layer thickness and/or thermal conductivity is required in order for the R-value to be calculated correctly. This is not to be confused with the R-value for an entire wall, floor, or roof element which is the sum of the resistances of each material layer that makes up each element.
|Thickness ||The distance across which heat loss occurs through a material. In most cases, this will be the face to face dimension of each material layer. The thickness of a material divided by its conductivity determines the resistance or R-value of that material. |
|Conductivity ||A measure of a materials ability to conduct heat. |
|Density ||A measure of a materials mass per unit volume. |
|Specific Heat ||A measure of the amount of heat required to heat an object per unit mass by one degree (°C/°F). |
<Name>CMU LW 12in ConcFill (CB57)</Name>
<Description>Concrete Filled 30.5 cm</Description>