1-20 of 111
Keywords: moisture
Close
Sort by
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2023
ISBN: 978-0-8031-7747-5
.... Although this research did not provide definitive answers to all the questions initially proposed, much was learned, including that the original hypothesis was wrong. Major issues involved the calibration of the wood moisture data, the corrosion of moisture pins, and confusion about the location...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2021
ISBN: 978-0-8031-7704-8
... is placed outboard of the air and water barrier in most wall assemblies, which means it will generally be exposed to higher levels of moisture than insulation placed within an interior wall cavity. When the thermal resistance value of insulation materials is determined using standardized laboratory testing...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2020
ISBN: 978-0-8031-7680-5
... envelope failures, we have found that air barrier, roofing, and waterproofing perfection is challenging to achieve. The goal of this paper is to outline strategies to reduce or evacuate moisture from building envelopes without extensive replacement of components or systems. This paper presents case studies...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2020
ISBN: 978-0-8031-7688-1
... In recent years, the roofing industry has undergone another major change with the introduction of underlayment products that have significant moisture retention and permeability differences from the traditional ASTM D226, Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2019
ISBN: 978-0-8031-7675-1
... The design and construction industry is increasingly interested in the effects of air leakage and how it relates to mechanical system efficiency, thermal comfort issues for building occupants, condensation, moisture accumulation, and concealed deterioration of building materials within wall...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7647-8
... to intentional controlled wetting events to the exterior surfaces of the structural oriented strand board sheathing to simulate various construction defects and determine the relative rates of drying for the two assemblies. The test walls were compared using measured RH, measured wood moisture content...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7647-8
... Data has been generated for performing moisture modeling on roof systems for a set of key materials used on commercial low slope roofs in North America. The data were used to generate a sensitivity analysis, comparing the amount of variation in the results based on known and assumed variation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7647-8
... and construction of energy-efficient and durable building envelopes. Conclusions and recommendations for further research also are offered. moisture condensation water vapor permeance retarder insulation ratio hygrothermal performance assessment 362 ADVANCES IN HYGROTHERMAL PERFORMANCE...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2016
ISBN: 978-0-8031-7615-7
... Standard 160, Design Criteria for Moisture Control in Buildings. Two specific criteria were extracted from the simulations to assess the hygrothermal properties of the wall systems. The average monthly heat flow into the building interior was used to evaluate the energy efficiency, and the average monthly...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2014
ISBN: 978-0-8031-7595-2
... and biodegradability. Biodegradable fluids are often employed in ecologically sensitive areas; moisture contamination is difficult to avoid in these places. Moisture is a concern because water contamination causes premature wear in machinery and degradation of lubricants. One means of remediating water contamination...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2011
ISBN: 978-0-8031-4471-2
... Many of our current recommendations for moisture and condensation control are not based on quantitative analysis under a consistent set of design assumptions, even though a growing number of computer tools are beginning to make such analysis practical. To address this issue, the American Society...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7505-1
... A method based on ASTM E96/E96M-05 is described for testing the comparative effect of seams and closure types on the water vapor transmission properties of low permeance materials typically applied as moisture vapor retarders. The baseline performance of two materials with water vapor permeance...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7505-1
... Moisture is critical to the weathering of stone buildings and almost all weathering processes in building stones are influenced by the presence of moisture—especially the cyclic process of repeated ingress and egress of moisture that promotes their decay. Therefore, monitoring the moisture...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7505-1
... appropriate moisture reference years and specify the amount of water that is assumed to intrude into the wall. Weather data used as input for modeling purposes is generally assumed to be reliable, but recent work has shown that there may be considerable uncertainty in the rainfall data. A small study...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7505-1
... with vapor retarders to help control the build up of destructive moisture levels within the roof. This article presents the results of numerical case studies created in WUFI® that demonstrate the need for venting in unvented asphalt shingle roof systems with a variety of insulation and vapor retarder...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7505-1
... moisture content of the assembly was measured using a weighing system, and as well, measurements of local moisture content of oriented strand board (OSB) sheathing were taken with the use of electrical resistance moisture pin pairs. The local moisture content of the OSB was based on the relationship...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7505-1
... of the degree to which membranes may retain moisture and affect moisture migration. On this basis, the drying responses of mid-scale specimens of approximately (0.8×1 m 2 ) and full-scale specimens (2.44×2.44 m 2 ) were assessed in a series of experiments undertaken in a controlled laboratory setting...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-3417-1
... of building materials to indicate wet or dry materials. Often, the readings may be falsely interpreted as an indication of elevated moisture levels when metal is present in the region of the readings. Infrared thermography is successfully being used to detect and trace leakage in building envelopes. Its...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2004
ISBN-10: 0-8031-3480-0
ISBN: 978-0-8031-3480-5
... The paper explores the relationship between elevated moisture in sealant substrates and the ability of sealants to develop and maintain adequate bond strength. Documented sealant adhesive failures, due to moisture conditions of substrates, and the use of various sealant primers and surface...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3457-6
ISBN: 978-0-8031-3457-7
... Solution for the prevention of penetration of moisture into a building that will cause undue dampness or damage to the building deals only with generic materials such as timber weather boards, brick veneer and stucco on light timber framing. The Verification Method contains test methods to be carried out...