<ul>
	<li>Operatives to apply protective sheeting to work routes and working areas.</li>
	<li>To gain access via man anchor system and harness.</li>
	<li>To unscrew the top of the vent and remove the cover.</li>
	<li>To remove all the damaged seal / silicone.</li>
	<li>To re-seal all the edges and joints.</li>
	<li>To paint the wood frame with acrypool.</li>
	<li>To reinstall the vent cover.</li>
	<li>Site to be left clean and tidy.</li>
</ul>
