Code 8 Cast Lead - 240mm x 6m 
Code 7 Cast Lead - 300mm x 3m 
Klober Double Roman Roof Tile Vent - Brown KG9857-3-0247 (Box of 10) 
Soudal Soudalead PB Lead Sealant - Grey 300ml 
Code 4 Cast Lead - 800mm x 6m 
Bond It Mould Stop - Clear 2.5L 
Timloc Castellated Tile Vent Terracotta (Box of 8) 
Manthorpe Felt Lap Vent is a refurbishment product designed to increase the amount of ventilation into existing roof spaces. Furthermore, Manthorpe Felt Lap Vent is usually fitted retrospectively to properties with additional loft insulation recently installed. To add, Felt Lap Vent helps to combat the problem of condensation builds up in any roof space with a lapped felt/membrane construction.
The specifier should ensure that the opening of felt laps on the property will not adversely increase the wind uplift load on the tiles/slates or the driving rain resistance of the roof
