| Product(s): | OpenBuildings Energy Simulator | |
| Version(s): | CONNECT Edition | |
| Environment: | N/A | |
| Area: | Part L | |
| Subarea: | N/A | |
Overview
In certain circumstances, external doors will not appear on the BRUKL document.
Method
The following scenarios can cause doors to be missing:
- HVAC system set to "No heating or cooling"
If a zone has no HVAC system then the SBEM calculation engine has no requirements to consider the U-value of external surfaces in that zone.
From the current iSBEM user guide, page 127:
"NB: Note that the Building Regulations compliance check regarding U-values will be applied by the tool to all envelopes which are not adjacent to a ‘Conditioned adjoining space’ or ‘Same space’. Also note that the tool will not check the U-values of elements in unconditioned zones for compliance."
- Door has been defined with 50% or more glazing
Any door with 50% or more glazing will be treated as a window by the SBEM calculation engine.
From the current iSBEM user guide, table, page 26:
"When doors have more than 50% glazing, then the light/solar gain characteristics must be included in the calculation. This is achieved by defining these doors as windows. (Otherwise, they are defined as opaque doors.)"
- Door has been set to the incorrect type in Surface Data
Check that you have defined your project data correctly.