Bentley Communities
Bentley Communities
  • Site
  • User
  • Site
  • Search
  • User
Hevacomp
  • Product Communities
  • Building
  • Hevacomp
  • Cancel
Hevacomp
Hevacomp Wiki Glazing Light Transmittance in Part L Results
    • Sign In
    • +Hevacomp General Information
    • +Hevacomp Dynamic Simulation
    • +Hevacomp Electrical Designer
    • -Hevacomp Mechanical Designer
      • +Design Database - Hevacomp Mechanical Designer
      • +Mechanical Design - Hevacomp Mechanical Designer
      • +Netsys - Hevacomp Mechanical Designer
      • -PartL - Hevacomp Mechanical Designer
        • Actual Emission Rate (BER) displayed as zero
        • Alpha Values and Thermal Bridging
        • An important note on the PartL calculation
        • Auxiliary Energy - an explanation
        • BRUKL and ENE01 Compliance Checker differences
        • BRUKL Compliance Report Project Name
        • Calculating hot water demand
        • Cannot lodge XML - Insurer details are missing
        • Cannot select Display Lighting
        • CHP will not connect to an HWS sysytem
        • Consideration of shading factors
        • Considering ground floor U-values
        • Defining air permeability
        • Defining Door Types
        • Defining solar collectors
        • District heating is displayed in BRUKL report, none selected
        • Energy Consumption on BRUKL report
        • Entering non-standard HVAC systems
        • EPBD Recast - Specifying alternative forms of energy
        • EPC and Recommendations menus
        • EPCGEN Error, no compliance report and blank results
        • EPCgen.net Activation Code
        • Excessive thermal bridging
        • External doors missing from BRUKL report
        • Fuel Heating Type
        • General Lighting output in compliance report
        • Glazing area differences
        • Glazing Light Transmittance in Part L Results
        • Heating System Controls greyed out
        • Inputting DHW Generator Seasonal Efficiency
        • Inputting SFP for fan coils
        • Internal Surfaces appearing in PartL U-Value checks
        • Keyword out of range: Heat SSEFF error
        • Lighting results do not match input data
        • Notional Auxiliary Energy requirements increase when using HEPA filters
        • Occupancy gains may appear different
        • Omitted Recommendations shown in Recommendations Report
        • Partition Centre Lines
        • Potential Measures for Scottish EPC's
        • Power Factor and Lighting Controls
        • Project data changing after loading project into different software versions
        • Renewable fuel sources
        • Room Types and the NCM Database
        • Shell and Core Building Services can cause an error
        • The BRUKL document is listing an unexpected building type
        • The NCM modelling guide
        • Thermal Bridging/PSI values
        • Usage of Biofuels
        • U-value check in Compliance Report
        • U-Value checks not carried out
        • XML document is not produced
      • +System Builder - Hevacomp Mechanical Design
    • +Installation and activation
    • +Troubleshooting
    • +Windows tips and tricks
    • Working From Home with Hevacomp

     
     Questions about this article, topic, or product? Click here. 

    Glazing Light Transmittance in Part L Results

      Product(s): Hevacomp Mechanical Designer
      Version(s): V8i (N/A)
      Environment: N/A
      Area: N/A
      Subarea: N/A

    Overview

    The Light Transmittance figures used in a Part L calculation come from two separate locations in Hevacomp. The best resource to distinguish the difference between these is the Data Reflection Report.

    Method

    The first location Transmittance is entered is the Design Database Glazing menu - if this type of glazing is used in the building then this will be displayed in the list of Window/Rooflight constructions as below:

    The Transmission factor can also be entered into Part L under the Miscellaneous > Additional Surface tab. Changing this will not affect the Window/Rooflight constructions above, but only the individual Window in that has been selected from the list of surfaces. This will then be displayed in the Zone (Room) properties, as below:

    • SBEM
    • Hevacomp Mechanical Designer
    • PartL
    • Light transmittance
    • Share
    • History
    • More
    • Cancel
    • Shane Regan Created by Bentley Colleague Shane Regan
    • When: Thu, Dec 10 2015 6:54 AM
    • Shane Regan Last revision by Bentley Colleague Shane Regan
    • When: Mon, Aug 24 2020 5:13 AM
    • Revisions: 3
    • Comments: 0
    Recommended
    Related
    Communities
    • Home
    • Getting Started
    • Community Central
    • Products
    • Support
    • Secure File Upload
    • Feedback
    Support and Services
    • Home
    • Product Support
    • Downloads
    • Subscription Services Portal
    Training and Learning
    • Home
    • About Bentley Institute
    • My Learning History
    • Reference Books
    Social Media
    •    LinkedIn
    •    Facebook
    •    Twitter
    •    YouTube
    •    RSS Feed
    •    Email

    © 2023 Bentley Systems, Incorporated  |  Contact Us  |  Privacy |  Terms of Use  |  Cookies