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Author: Publisher: ISBN: 9780660484433 Category : Buildings Languages : en Pages : 0
Book Description
"This condensed guide builds upon knowledge obtained through ever-evolving sources, including case studies, private sector consultation, and work done in Canada's Parliamentary Precinct and other buildings in the National Capital Region. The target audience for this condensed Guide is project managers working on heritage rehabilitation projects that involve improving the thermal performance of a heritage building envelope. This guide is a condensed companion to the more detailed guide entitled Insulating Heritage Mass Masonry Buildings from the Interior: Best Practice Guide to Mitigate Risk of Freeze-Thaw Damage, authored by the National Research Council (NRC)"--Purpose, page 2.
Author: Publisher: ISBN: 9780660484433 Category : Buildings Languages : en Pages : 0
Book Description
"This condensed guide builds upon knowledge obtained through ever-evolving sources, including case studies, private sector consultation, and work done in Canada's Parliamentary Precinct and other buildings in the National Capital Region. The target audience for this condensed Guide is project managers working on heritage rehabilitation projects that involve improving the thermal performance of a heritage building envelope. This guide is a condensed companion to the more detailed guide entitled Insulating Heritage Mass Masonry Buildings from the Interior: Best Practice Guide to Mitigate Risk of Freeze-Thaw Damage, authored by the National Research Council (NRC)"--Purpose, page 2.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
?There are many existing buildings with load-bearing mass masonry walls, whose energy performance could be improved with the retrofit of insulation. However, adding insulation to the interior side of walls of such masonry buildings in cold (and wet) climates may cause performance and durability problems. Some concerns, such as condensation and freeze-thaw have known solutions. But wood members embedded in the masonry structure will be colder (and potentially wetter) after an interior insulation retrofit. Moisture content and relative humidity were monitored at joist ends in historic mass brick masonry walls retrofitted with interior insulation in a cold climate (Zone 5A); data were collected from 2012-2015. Eleven joist ends were monitored in all four orientations. One limitation of these results is that the renovation is still ongoing, with limited wintertime construction heating and no permanent occupancy to date. Measurements show that many joists ends remain at high moisture contents, especially at north- and east-facing orientations, with constant 100 percent RH conditions at the worst cases. These high moisture levels are not conducive for wood durability, but no evidence for actual structural damage has been observed. Insulated vs. non-insulated joist pockets do not show large differences. South facing joists have safe (10-15 percent) moisture contents. Given the uncertainty pointed out by research, definitive guidance on the vulnerability of embedded wood members is difficult to formulate. In high-risk situations, or when a very conservative approach is warranted, the embedded wood member condition can be eliminated entirely, supporting the joist ends outside of the masonry pocket.
Author: K. Ueno Publisher: ISBN: Category : Architecture and energy conservation Languages : en Pages : 32
Book Description
The Building Science Consortium held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011, at the Westford Regency Hotel in Westford, MA. This report outlines the extensive information that was presented on assessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce such risks.
Author: Publisher: ISBN: Category : Languages : en Pages : 39
Book Description
This Measure Guideline describes a deep energy enclosure retrofit (DEER) solution for insulating mass masonry buildings from the interior. It describes the retrofit assembly, technical details, and installation sequence for retrofitting masonry walls. Interior insulation of masonry retrofits has the potential to adversely affect the durability of the wall; this document includes a review of decision criteria pertinent to retrofitting masonry walls from the interior and the possible risk of freeze-thaw damage.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
In this project, the Building Science Corporation team studied a historic brick building in Lawrence, Massachusetts, which is being renovated into 10 condominium units and adding insulation to the interior side of walls of such masonry buildings.
Author: Publisher: ISBN: Category : Languages : en Pages : 41
Book Description
The Building Science Consortium held an Expert Meeting on Interior Insulation Retrofit of Mass Masonry Wall Assemblies on July 30, 2011 at the Westford Regency Hotel in Westford, MA. This report outlines the extensive information that was presented on assessment of risk factors for premature building deterioration due to interior insulation retrofits, and methods to reduce such risks.
Author: J. Carmeliet Publisher: CRC Press ISBN: 1000151298 Category : Technology & Engineering Languages : en Pages : 1044
Book Description
This text provides a broad view of the research performed in building physics at the start of the 21st century. The focus of this conference was on combined heat and mass flow in building components, performance-based design of building enclosures, energy use in buildings, sustainable construction, users' comfort and health, and the urban micro-climate.
Author: Nastassja Pearson Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Insulating historic masonry buildings will improve thermal performance. However, heritage requirements often limit the addition of insulation to the interior surface. This can lead to colder and wetter walls. Freezing temperatures coupled with high moisture levels in the brick leave the walls susceptible to frost damage. Current retrofit designs attempt to control condensation of interior moisture. However, these designs do not consider exterior moisture sources, nor do they allow for interstitial moisture to be easily removed. This thesis presents an innovative, ventilated masonry retrofit that utilizes drainage and drying to address moisture accumulation issues. Computer simulations are used to assess and compare the hygrothermal performance of typical and ventilated masonry retrofits. The results show masonry moisture contents are reduced when ventilation drying is provided. Further, these simulations show it may be possible to increase thermal insulation levels in historic masonry buildings without damaging the very façade to be preserved.
Author: David Pickles Publisher: ISBN: 9781848024366 Category : Languages : en Pages : 28
Book Description
This guidance note provides advice on the principles, risks, materials and methods for improving the thermal performance of buildings built with early forms of masonry cavity walls dating from before the Second World War. Builders and architects started to experiment with cavity or 'hollow walls' from early in the Victorian period. By the first decade of the 20th century, most pattern books for houses included examples of outer walls with two separate leaves of brickwork. Initially the development of the hollow wall was to provide as much protection as possible from the elements, especially driving rain, together with enhanced stability and economy of materials. These types of wall first appeared in exposed areas, particularly coastal locations. Since the energy crisis of the early 1970s it has become common to fill or partially fill the cavity with a variety of insulation materials to reduce the heat loss through the wall. Modern cavity walls (post-Second World War) often provide a good opportunity to improve thermal performance with cavity insulation. Such insulation is invisible, cheap and quick to install, with no reduction to room sizes. However, cavity insulation is not generally suitable for all cavity walls particularly those classed as 'early cavity walls'. The performance of early cavity walls will differ from that of later cavity walls and these differences need to be taken into account when considering the addition of insulation. However, some early cavity walls can be insulated using cavity insulation and this guidance discusses how to determine whether any particular wall is suitable. For some early cavity walls, cavity fill insulation will always be unsuitable and the construction needs to be treated as a solid wall, insulated either internally or externally or not at all. This guidance forms one of a series of thirteen guidance notes covering the thermal upgrading of building elements such as roofs, walls and floors.
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Author: K. Ueno
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Author: J. Carmeliet
Author: Nastassja Pearson
Author: David Pickles
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