Specification History

SWS Version Created Specification ID Title Specification Objective Supporting Materials Rationale Status
Version 2020 14/08/2020 - 14:23 4.0188.2e Ventilation screens

All attic ventilation sources with holes greater than 1/4" will have corrosion-resistant wire mesh screens installed with openings of 1/16" to 1/4"

Existing vents that are not screened will be covered with corrosion-resistant wire mesh with openings of 1/16" to 1/4"

Prevent pest entry

 Black Line
Version 2020 14/08/2020 - 14:23 4.0188.2e Ventilation screens

All attic ventilation sources with holes greater than 1/4" will have corrosion-resistant wire mesh screens installed with openings of 1/16" to 1/4"

Existing vents that are not screened will be covered with corrosion-resistant wire mesh with openings of 1/16" to 1/4"

Prevent pest entry

 Black Line