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do not over-wet
It can be fitted retrospectively after increased loft insulation
Using either an electric sander or a 120-grit sandpaper
If there is any loose paint or plaster
oil and grease using White Spirit and a cloth
Ulti-mate Hybrid Black Delta Vent Duck Egg do not over-wetUlti mate Hybrid Black Delta Vent The built in downpipe allows direct ventilation path into the roof space if required under BS5250, the airflow for the Vent is 10,000mm space at Eaves 1. 0m intervals for 10,000mm and at ridge 2. 0m intervals for 5,000mm Roof Space Ventilation and minimum pitch of 22, this only applies to Interlocking vent versions. It can also be used as a terminal for soil and ventilation pipes and mechanical extraction systems.
