Once Cask Conditioned ale is delivered to a pub it must be set up in its serving position and then left undisturbed until the cask is empty. The publican must also 'vent' the cask - allowing the cask to breathe and secondary fermentation to take place. Secondary fermentation of the beer in a closed cask ensures that the beer becomes completely satu... Found on http://www.encyclo.co.uk/local/20652
The process of installing roof vents in a roof assembly to relieve vapor pressure. The process of water in the insulation course of the roof assembly evaporating and exiting via the roof vents. Found on http://www.encyclo.co.uk/local/20933
The release of excessive internal pressure from a cell in a manner intended by design to preclude explosion.
Found on http://www.mpoweruk.com/glossary.htm
A method of self adjusting a garment in order to release moisture, eg with mesh areas, or pit zips. This prevents the need to remove layers, whilst allowing hot air to escape in minimal amounts. Found on https://www.encyclo.co.uk/local/23307