In an effort to help elevate the building envelope profession, this page brings together a wealth of knowledge by respected industry professionsals. If you are interested in becoming a contributor please contact us. We are currently interested in gaining additional perspective from contractors.

CONTRIBUTOR - Patrick Roppel, M.A.Sc., P.Eng. 

BIO

Patrick manages the Building Performance Analysis (BPA) department at Morrison Hershfield with over 15 years of consulting experience related to building science and building envelope energy efficiency.  Patrick’s focus in recent years has been providing tools and guidance to industry to help practitioners make design decisions related to constructability, thermal, structural, energy, and hygrothermal performance.  His field experience, monitoring and investigations of existing buildings, computer analysis of building envelopments components and systems, and development work is leveraged on new-construction projects to set realistic and practical expectations for building envelope performance. 

Patrick has led several successful landmark projects related to providing timely industry guidance, such as ASHRAE RP-1365 Thermal Performance of Building Envelope Details for Mid- and High-Rise Buildings, Building Envelope Thermal Bridging (BETB) Guide, the Attic Ventilation and Moisture Research Study, and Guide to Low Thermal Energy Demand for Large Buildings (Low TEDI Guide). 

Patrick Roppel, M.A.Sc., P.Eng. 
Principal Building Scientist Specialist and Department Head
at Morrison Hershfield

WORK

Thermal Breaks and Energy Performance in High-Rise Concrete Balconies
(2013)


Patrick Roppel, Morrison Hershfield
Dieter Hardock, International Product Manager, Schock Bauteile GmbH

Original Publication: CTBUH Journal, 2013 Issue 4
                

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THERMAL PERFORMANCE OF THREE DIMENSIONAL BUILDING ENVELOPE ASSEMBLIES AND DETAILS FOR IMPROVING THE ACCURACY OF WHOLE BUILDING PERFORMANCE SIMULATION

Christian Cianfrone, Neil Norris, Patrick Roppel
Morrison Hershfield Limited, Vancouver, BC

Medgar Marceau
Morrison Hershfield Corporation, Seattle, WA
 

                

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EVALUATING CONDENSATION RESISTANCE FOR THE DESIGN OF WALL ASSEMBLIES


Patrick Roppel, P.Eng., Mark Lawton, P.Eng.



27th International Convention and Trade Show, Dallas, Texas

 

                

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Setting Realistic Design Indoor Conditions for Residential
Buildings by Vapor Pressure Difference
 

Patrick Roppel, P.Eng., Mark Lawton, P.Eng.. William C Brown


Journal of ASTM International, Vol. 6, No. 9
Paper ID JAI102052
Available online at www.astm.org 
 

 

                

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Balancing the Control of Heat, Air, Moisture, and Competing Interests.

Patrick J. Roppel, M.A.Sc., Mark D. Lawton, P.Eng., Brian Hubbs, P.Eng.

11th Canadian Conference on Building Science and Technology Banff, Alberta.
2007
 

 

                

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Modeling of Uncontrolled Indoor Humidity for HAM Simulations of Residential Buildings


Patrick Roppel, PEng William C. Brown, PEng Mark Lawton, PEng
Member ASHRAE
 

 

Thermal Performance of the Exterior Envelopes of Whole Buildings X International Conference, 2007
               

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Developing a Design Protocol for Low Air and Vapour Permeance
Insulating Sheathing in Cold Climates



William C. Brown, PEng Patrick Roppel, PEng Mark Lawton, PEng

ASHRAE 2007             

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Building Envelope Thermal Bridging Guide
VERSION 1.2


Patrick Roppel, P. Eng, (contributor through Morrison Hershfield (Building Envelope Consultants)


2018 Edition         

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