There are 23 files


  Glazing Frame Evidence Required for Passivhaus.pdf
» 97.9 KiB - 1,622 hits - added: August 15, 2016
Glazing and frame evidence required for certification of Passivhaus buildings. Window suppliers, please upload the requested reports to your website for download.

  Glazing Frame Specifications for Passivhaus.xls
» 87.0 KiB - 1,464 hits - added: August 15, 2016
Sheet for window manufacturers to provide glazing and frame specifications. Also denotes the evidence requirements for these specifications.

  Housing Association Air Test Report
» 1.5 MiB - 149 hits - added: April 20, 2018
Report on housing association existing stock, showing air tightness before and after installation of external insulation.

Thermal Bridge Calculation

  Additional files used to setup THERM
» 97.7 KiB - 4,290 hits - added: May 4, 2011

Boundary libary 2.4
Material library 2.5
Inital THERM file for set up
Set up file to produce report from THERM

  PSI calculation from Therm using excel v36
» 650.0 KiB - 5,374 hits - added: February 24, 2015

PSI calculation from Therm using excel v36
V24 clarification added to window installation case
v25 Formula changed to work with open office
v27 All party walls now to be analysed both sides to cope with asymmetric constructions, all outputs now reported to 2 decimal places, but result to 3 visible, Isotherm scale added to all bases
v28 Added suspended floor check that Internal L2D is being used. Added Flux scale to each sheet.
V29 correct internal conditional formatting in susp floor (see 28). Correct wall /void height definition
V30 corrected formula in ground and party ground sheet P27 replace 0.427 with 0.457 (thanks andrew lundberg)
V31 Window installation N35 IF command added
V34 New sheets and fixes
V35 Renamed most sheets and added different sheets for party and partition use
V36 Updated WARM company address and provided space for end-user company address/logo

  Setup Instructions for Using THERM
» 5.1 MiB - 5,821 hits - added: November 5, 2014

Setup instructions for using THERM V208

Or follow our free Moodle course on setting up THERM:
Click on "Log in as a guest"

  THERM quick reference sheet
» 128.2 KiB - 4,628 hits - added: February 18, 2011
THERM quick reference sheet (covers THERM and the PW excel sheet)


  Coheating testing A4 info
» 337.7 KiB - 5,817 hits - added: November 12, 2010
A brief overview of Coheating - what, why and how.


  Training Resources  » Please log in or register to download.
» 4.0 KiB - 0 hits -added: July 31, 2017

All training resources are now located on


  Additional Shading Sheet v2.1.0
» 1.7 MiB - 207 hits - added: September 10, 2018
An add-in sheet for PHPP 9, which allows you to easily model shading objects that are discontinuous and/or which have transparency. These include trees, tower blocks, brise-soleils, juliet balconies and plant-on glazing bars.

  How to Enter Multiple Compact Units in One PHPP
» 97.0 KiB - 797 hits - added: January 27, 2017
Shows you how to enter multiple compact units in one PHPP.

  Intake Location Calculation
» 314.9 KiB - 762 hits - added: April 23, 2018
On many projects we need to decide how close we can locate an air intake to a polluting exhaust or boiler flue. This workbook is for calculating the minimum recommended distances between intake and exhaust openings and boiler flues using the equation provided in ‘Annex A of BS EN 13779 Ventilation for non-residential buildings-Performance requirements for ventilation and room-conditioning systems’. Note that this calculation does not take into account directional louvres.

  PHPP analysis - compare two PHPPs
» 40.0 KiB - 1,435 hits - added: November 27, 2012
A tool for comparing the outputs of different PHPP sheets that are both open. V8 and V9 now supported.

  PHPP Formulae to Make Shading Transparent (DEPRECATED)
» 220.1 KiB - 2,070 hits - added: November 9, 2015
DEPRECATED - please use the Additional Shading Sheet instead. Guide to giving transparency to PHPP shading objects that are not opaque, such as trees, some fences, and brise-soleils.

  PHPP WARM Results Sheet v6.06
» 169.0 KiB - 4,028 hits - added: June 24, 2011
A graphical results sheet that can be added to any v8 or v9 PHPP.

  SEDBUK conversion of boiler efficiencies from GROSS to NET for use in PHPP
» 22.5 KiB - 3,374 hits - added: October 4, 2011
SEDBUK conversion of boiler efficiencies from GROSS to NET for use in PHPP

  Shape Tool
» 365.5 KiB - 1,454 hits - added: May 13, 2016
The Shape tool doesn't reflect the changes in internal gains within calculations on PHPP9, but still generally applicable.

  Ventilation Commissioning Guidance and Design/Commissioning Worksheet
» 112.0 KiB - 3,121 hits - added: July 21, 2014
As Sally's presentation at the PHI conference 2106: An updated Final Protocol Worksheet and Commissioning Instructions. These are based on the difficulties we have found with ventilation systems in the the UK, and make specific suggestions about how the commissioning process should be carried out, including: *the ability to declare the system "un-commissionable" if noise and airflow measurements cannot find acceptable values *the list of suitable types of anemometers for various measurements *Noise estimation for high background noise sites. *Testing where duct leakage needs to be established.

  WARM U-Value Corrections Calculator v1.0.0
» 70.9 KiB - 799 hits - added: March 17, 2017
Calculates corrections for insulation moisture uptake in inverted roofs and for metal fixings passing through the insulation layer.

  Window Comparison Sheet
» 18.6 KiB - 647 hits - added: June 7, 2017
An add-in sheet for the PHPP. When you are comparing the impact on your PHPP of windows/doors from different manufacturers, use this sheet to save you from copying and pasting new specifications into the Components sheet every time you wish to switch to a different window manufacturer. Simply use the drop-down box in this sheet instead.


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