Impact of Heating and Cooling of Expanded Polystyrene and Wool Insulations on...RDH Building Science
The thermal expansion and contraction of insulation products within conventional roof assemblies has been identified as a potential performance concern in the roofing industry. This movement can create gaps between insulation boards, which can short-circuit the insulation with respect to heat flow, and in conventional roof assemblies where the insulation also provides the substrate for the roofing membrane, insulation movement can also adversely affect the durability and integrity of the membrane and roofing system. Problems with creasing and ridging of membranes have been observed in the field, along with stress concentrations and holes around fixed penetrations. In particular, field observations have indicated that shrinkage of expanded polystyrene (EPS) insulation products may put undue stress on the roof membranes and could potentially affect the durability of styrene-butadiene-styrene (SBS) roof membranes.
To investigate these industry concerns regarding the potential effect of dimensional movement of EPS insulation on the performance of SBS membranes, laboratory testing was performed on conventional roof specimens in a purpose-built climate chamber. The roof assemblies were cooled and heated to evaluate the amount of insulation movement, and to then observe the impact of these temperature cycles on the roof assembly. This portion of the investigation in to this issue focused on recreation of the observed field condition (e.g., wrinkled membrane), and direct comparison of the relative performance of different insulation types as a first step towards determining the cause of the observed in-service wrinkling.
Presented at the 15th Canadian Conference on Building Science and Technology.
The Tradition and Science of Window Installations - Where are We Headed with ...Graham Finch
Presentation on the impact of more highly insulated and passive house wall designs and practices on the installation of windows. Presented at the 2016 Euroline technology forum.
Overview:
- Background
- Net Zero Building Enclosure Targets & Potential Savings
- Interior and Exterior Building Enclosure Retrofit Strategies
- Hygrothermal Considerations & Risk Assessment Evaluation Methodology
- Economics of Net Zero Building Enclosure Retrofits
Achieving the Passive House criteria on a high-rise, concrete-framed building located in Vancouver, BC.
Presented at the 2017 NAPHN Conference and Expo by Eric Catania, M.Eng., BEMP, CPHD, LEED AP BD+C, PHI Accredited Passive House Certifier.
Airtightness of Large Buildings - Where We're At and Where We're GoingLorne Ricketts
Whole building airtightness performance and testing standards are gaining traction throughout North America with various jurisdictions now including them as part of the energy codes and standards. This presentation looks at the state of the industry with respect to airtightness based on a database of over 500 airtightness tests, and provides information on industry trends.
Ever increasing thermal performance requirements for wood-frame walls have had a dramatic impact on how we build walls. To meet these targets, exterior insulation is becoming more and more common, and methods to support the cladding are required that are strong and rigid, yet do not create significant thermal bridging through the insulation. This presentation discusses the results of recent structural testing of various different arrangements on long fasteners through exterior insulation as a method of supporting cladding while limiting thermal bridging.
Window Standards Compared: NFRC, ISO and Passive House RatingsRDH Building Science
This slide deck was presented by Brittany Hanham at Passive House North Conference 2013.
Outline:
- North American and Passive House window rating systems
- Example simulation results
- What this means and things to be aware of
Impact of Heating and Cooling of Expanded Polystyrene and Wool Insulations on...RDH Building Science
The thermal expansion and contraction of insulation products within conventional roof assemblies has been identified as a potential performance concern in the roofing industry. This movement can create gaps between insulation boards, which can short-circuit the insulation with respect to heat flow, and in conventional roof assemblies where the insulation also provides the substrate for the roofing membrane, insulation movement can also adversely affect the durability and integrity of the membrane and roofing system. Problems with creasing and ridging of membranes have been observed in the field, along with stress concentrations and holes around fixed penetrations. In particular, field observations have indicated that shrinkage of expanded polystyrene (EPS) insulation products may put undue stress on the roof membranes and could potentially affect the durability of styrene-butadiene-styrene (SBS) roof membranes.
To investigate these industry concerns regarding the potential effect of dimensional movement of EPS insulation on the performance of SBS membranes, laboratory testing was performed on conventional roof specimens in a purpose-built climate chamber. The roof assemblies were cooled and heated to evaluate the amount of insulation movement, and to then observe the impact of these temperature cycles on the roof assembly. This portion of the investigation in to this issue focused on recreation of the observed field condition (e.g., wrinkled membrane), and direct comparison of the relative performance of different insulation types as a first step towards determining the cause of the observed in-service wrinkling.
Presented at the 15th Canadian Conference on Building Science and Technology.
The Tradition and Science of Window Installations - Where are We Headed with ...Graham Finch
Presentation on the impact of more highly insulated and passive house wall designs and practices on the installation of windows. Presented at the 2016 Euroline technology forum.
Overview:
- Background
- Net Zero Building Enclosure Targets & Potential Savings
- Interior and Exterior Building Enclosure Retrofit Strategies
- Hygrothermal Considerations & Risk Assessment Evaluation Methodology
- Economics of Net Zero Building Enclosure Retrofits
Achieving the Passive House criteria on a high-rise, concrete-framed building located in Vancouver, BC.
Presented at the 2017 NAPHN Conference and Expo by Eric Catania, M.Eng., BEMP, CPHD, LEED AP BD+C, PHI Accredited Passive House Certifier.
Airtightness of Large Buildings - Where We're At and Where We're GoingLorne Ricketts
Whole building airtightness performance and testing standards are gaining traction throughout North America with various jurisdictions now including them as part of the energy codes and standards. This presentation looks at the state of the industry with respect to airtightness based on a database of over 500 airtightness tests, and provides information on industry trends.
Ever increasing thermal performance requirements for wood-frame walls have had a dramatic impact on how we build walls. To meet these targets, exterior insulation is becoming more and more common, and methods to support the cladding are required that are strong and rigid, yet do not create significant thermal bridging through the insulation. This presentation discusses the results of recent structural testing of various different arrangements on long fasteners through exterior insulation as a method of supporting cladding while limiting thermal bridging.
Window Standards Compared: NFRC, ISO and Passive House RatingsRDH Building Science
This slide deck was presented by Brittany Hanham at Passive House North Conference 2013.
Outline:
- North American and Passive House window rating systems
- Example simulation results
- What this means and things to be aware of
The Problem With and Solutions for Ventilated AtticsGraham Finch
Presentation from 30th RCI Annual Convention and Tradeshow in San Antonio, TX - March 9, 2015.
Peer reviewed paper and presentation covers review of current issues with ventilated attics in the Pacific Northwest with case studies, the latest research and potential solutions to address mold growth and other moisture issues.
The building envelope is physical separator between the exterior and the interior of the building and fenestration systems.
Envelope design strongly affects the visual and thermal comfort of the occupants, as well as energy consumption in the building.
Conventional Roofing - Impacts of Insulation Strategy and Membrane ColorGraham Finch
Presentation given at the Philadelphia BEC luncheon in September 2014 on a multi-year field study looking at the performance of conventional insulated roofing assemblies and the impacts of different roof membrane colors and insulation types. Full report and papers available at www.rdh.com
The definition of a "Super-Insulated" building, with a problem and solution based look at thermal bridging. The energy codes in the Pacific Northwest are some of the most stringent, but are also the best implemented in North America. Effective R-values are considered in the Energy codes and include the impacts of insulation installation and thermal bridges. A look into the other drivers behind Super-insulation such as comfort, passive design and mold-free enclosures.
Walls and Windows for Highly Insulated Buildings in the Pacific NorthwestRDH Building Science
Presentation Outline:
- Design Objectives, Durability Considerations, and the Pros & Cons for Alternate Highly Insulated Wall Assemblies in the Wet Pacific Northwest
- Basics of North American, European and Passivhaus Window Rating Standards and Window Selection Guidelines
The presentation looks at how the Ontario Building Code’s requirements for durability is to be interpreted and applied within the roles and responsibilities of the design team. It covers issues related to design service life of buildings and systems, the need for clarification of expectations within the durability process, and how to create a Durability Plan.
- Why care about concrete balconies and exposed slab edges?
- Impacts of uninsulated slab edges and balconies
- Comparison of alternate solutions
- Benefit of balcony thermal breaks
The Problem With and Solutions for Ventilated AtticsGraham Finch
Presentation from 30th RCI Annual Convention and Tradeshow in San Antonio, TX - March 9, 2015.
Peer reviewed paper and presentation covers review of current issues with ventilated attics in the Pacific Northwest with case studies, the latest research and potential solutions to address mold growth and other moisture issues.
The building envelope is physical separator between the exterior and the interior of the building and fenestration systems.
Envelope design strongly affects the visual and thermal comfort of the occupants, as well as energy consumption in the building.
Conventional Roofing - Impacts of Insulation Strategy and Membrane ColorGraham Finch
Presentation given at the Philadelphia BEC luncheon in September 2014 on a multi-year field study looking at the performance of conventional insulated roofing assemblies and the impacts of different roof membrane colors and insulation types. Full report and papers available at www.rdh.com
The definition of a "Super-Insulated" building, with a problem and solution based look at thermal bridging. The energy codes in the Pacific Northwest are some of the most stringent, but are also the best implemented in North America. Effective R-values are considered in the Energy codes and include the impacts of insulation installation and thermal bridges. A look into the other drivers behind Super-insulation such as comfort, passive design and mold-free enclosures.
Walls and Windows for Highly Insulated Buildings in the Pacific NorthwestRDH Building Science
Presentation Outline:
- Design Objectives, Durability Considerations, and the Pros & Cons for Alternate Highly Insulated Wall Assemblies in the Wet Pacific Northwest
- Basics of North American, European and Passivhaus Window Rating Standards and Window Selection Guidelines
The presentation looks at how the Ontario Building Code’s requirements for durability is to be interpreted and applied within the roles and responsibilities of the design team. It covers issues related to design service life of buildings and systems, the need for clarification of expectations within the durability process, and how to create a Durability Plan.
- Why care about concrete balconies and exposed slab edges?
- Impacts of uninsulated slab edges and balconies
- Comparison of alternate solutions
- Benefit of balcony thermal breaks
Designing For Improved Semicon Equipment PerformanceBSEmarketing
Designing semiconductor equipment that maintains high levels of precision, speed, and uptime is one difficult job. With interference and contamination constantly threatening the success of your designs, selecting the right electrical conducting and EMI/RFI shielding components is critical.
Diana Hamilton of Delcan presents an industrial retrofit project to LEED silver standard.
Presented at the 5th annual Green Building Festival in Toronto, Canada, 2009.
Technical details of Energy Efficient HVAC Systemjayeshmahajan24
PowerPoint Presentation Of project:-
https://www.youtube.com/watch?v=QFU-OVw4YNc
In this Handout, you will get all the technical details of all parts of HVAC and its calculations.
Technical Paper of this project:-
https://www.slideshare.net/jayeshmahajan24/technical-paper-of-hvac-for-commercial-building?qid=f74b02bf-3b80-4731-9c08-091d198a386c&v=&b=&from_search=7