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stack vent |
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stack vent [′stak ‚vent]
(engineering) An extension to the atmosphere of a waste stack or a soil stack above the highest horizontal branch drain or fixture branch that is connected to the stack. Also known as soil vent; waste vent. stack vent stack vent, 1 1. The extension (to the open air) of a soil or waste stack above the highest horizontal branch drain or fixture branch connected to the stack. Also called a soil vent or waste vent. 2. In built-up roofing systems, a vertical outlet permitting water vapor, which is entrapped within the insulation, to escape. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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