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Featured researches published by M. Nicholls.


Journal of Building Physics | 2015

Energy retrofit using vacuum insulation panels: An alternative solution for enhancing the thermal performance of wood-frame walls

Hamed H. Saber; W. Maref; Ganapathy Gnanamurugan; M. Nicholls

Field monitorings of thermal performance of residential 2 x 6 wood-frame wall systems that had been retrofitted using vacuum insulation panels (VIPs) and extruded polystyrene foam (XPS) panels were undertaken in May 2011 – May 2012 at the Field Exposure of Walls Facility (FEWF) of NRC-Construction. The main objective of this research was to measure the steady-state and transient thermal performance of three wall assemblies (4 ft x 6 ft), two of which incorporated VIPs within an XPS Tongue and Groove (T&G) configuration and VIPs within an XPS Clip-On (C-O) configuration, and a third assembly incorporating only XPS. The three wall assemblies were installed in the FEWF for 1-year cycle of exposure to outdoor natural weather conditions. The hygIRC-C model was used in this study. The results of the model calculations were in good agreement with the experimental data. Given that the VIPs could be punctured during the installation process or could fail during normal operating conditions, additional model calculations were used to predict the thermal resistance in cases where one or more VIPs failed. The model was also used to predict the yearly cumulative heat losses across these wall systems. It is important to point out that the aging effect and the effect of the thermal bridging due to envelope (i.e. skin) of the VIPs are not accounted for in this study. However, sensitivity analysis of the thickness and thermal conductivity of the VIP envelope was conducted to investigate the effect of these parameters on the effective thermal resistance of VIP.


Archive | 2002

Final report from task 8 of MEWS Project (T8-03) - Hygrothermal response of exterior wall systems to climate loading: methodology and interpretation of results for stucco, EIFS, masonry and siding-clad wood-frame walls

Pascal Beaulieu; Mark Bomberg; S. M. Cornick; W. A. Dalgliesh; G. Desmarais; Reda Djebbar; M.K. Kumaran; M. A. Lacasse; John Lackey; W. Maref; Phalguni Mukhopadhyaya; M. Nofal; Nicole Normandin; M. Nicholls; T. O'Connor; J. D. Quirt; M. Z. Rousseau; M. N. Said; M. C. Swinton; F. Tariku; D. van Reenen


Archive | 2002

Drying experiment of wood-frame wall assemblies performed in the climatic chamber EEEF: Specification of equipment used in EEEF-environmental exposure envelope facility

W. Maref; D. G. Booth; M. A. Lacasse; M. Nicholls


Archive | 2012

Field energy performance of an insulating concrete form (ICF) wall

W. Maref; M. M. Armstrong; Hamed H. Saber; M. Z. Rousseau; M. Nicholls; M. C. Swinton


Archive | 2009

A field monitoring study of interstitial condensation in wood-frame walls in cold climate

M. M. Armstrong; W. Maref; M. Z. Rousseau; W. Lei; M. Nicholls


Archive | 2002

Report from task 8 of MEWS project - MEWS methodology for developing moisture management strategies - application to stucco clad wood-frame walls in north america

Pascal Beaulieu; Mark Bomberg; S. M. Cornick; W. A. Dalgliesh; G. Desmarais; Reda Djebbar; M.K. Kumaran; M. A. Lacasse; John Lackey; W. Maref; Phalguni Mukhopadhyaya; M. Nofal; Nicole Normandin; M. Nicholls; T. O'Connor; J. D. Quirt; M. Z. Rousseau; M. N. Said; M. C. Swinton; F. Tariku; D. van Reenen


Archive | 2011

Field hygrothermal performance of retrofitted wood-frame wall assemblies in cold climate

W. Maref; M. M. Armstrong; M. Z. Rousseau; C. Thivierge; M. Nicholls; W. Lei


Archive | 2010

Effect of wall energy retrofit on drying capability

W. Maref; M. M. Armstrong; M. Z. Rousseau; M. Nicholls; W. Lei


Archive | 2010

Effect of the air and vapor permeance of exterior insulation on the flow of moisture in wood frame walls in a cold climate

M. M. Armstrong; W. Maref; M. Z. Rousseau; W. Lei; M. Nicholls


Archive | 2002

Automated weighing and moisture sensor system to assess the hygrothermal response of wood sheathing and combined membrane-sheathing wall components

W. Maref; M. A. Lacasse; D. G. Booth; M. Nicholls; T. O'Connor

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W. Maref

National Research Council

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M. M. Armstrong

National Research Council

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M. C. Swinton

National Research Council

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Hamed H. Saber

National Research Council

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M. A. Lacasse

National Research Council

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D. G. Booth

National Research Council

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Rock Glazer

National Research Council

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F. Tariku

National Research Council

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John Lackey

National Research Council

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