Sorption
The SuDS Manual (C753), published by CIRIA in 2015 defines sorption as: ‘A physical and chemical process by which one substance becomes attached to another. It includes adsorption and absorption.’
Assessing risks in insulation retrofits using hygrothermal software tools, Heat and moisture transport in internally insulated stone walls, by Joseph Little, Calina Ferraro and Beñat Arregi, published by Historic Environment Scotland in 2015, defines sorption as: ‘The process in which a material takes up a liquid or vapour, usually moisture. Sorption is a combined term that includes both absorption and adsorption: whilst spelt similarly these are very different. In the context of a porous material, absorption is the uptake of moisture from the environment into the volume of the solid material, combining with its molecular structure. Adsorption is the adhesion of a very thin layer of liquid to the surface of the pore wall, drawn by molecular forces. Desorption (the opposite of sorption) refers to the release of moisture from the porous material, and is often caused by a rise of temperature.’
[edit] Related articles on Designing Buildings
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Households living near new pylons to save on bills.
ECA warns growth must not outpace grid capacity or skills.
The role of the client and decision making
CIOB response to built environment professions call for evidence.
Construction's sustainability reporting revolution
Tracking upfront embodied carbon with digital tools.
ECA welcomes procurement reforms
Public spending must back British jobs and skills.
Campaigning for Edinburgh: the Cockburn Association 1875-2049
The role of the civic voice in protecting character. Book review.
CIOB photography competition is open for entries.
ECA Edmundson apprentice of the year award
Finalists announced.
Major new study exposes serious knowledge gaps.
Generating energy from internal light as well as sunshine.
ECA welcomes plans to strengthen subcontractor quality control.
Combining mid-career qualifications with experience broadens career opportunities.