FloPlast Round Line Downpipe Clip, White 
Chesterfelt Shed Roofing Felt - Green Standard 10m 
Bond It Contractors Grade PVA - White 500ml 
Universal Hip Support System Tray - 1.2m 
Ronseal Multi Purpose Powder Smooth Finish Filler - 500g + 50% 
Timloc Multi Stepped Duct Adaptor (Fits 100/110/125/150mm Duct) 
Easy-Trim Universal Dry Verge System - Brown 
Ronseal Wet Rot Wood Hardener - 250ml 
Resiblock Indian Sandstone Sealer Invisible - 5 Litre 
Klober Profile-Line Twin Plain Tile Vent - Terracotta KG9861-0152 (Box of 10) 
ALM Code 6 Milled Lead Flashing - 150mm x 3m 
Timco 25 Spanner Set 
Ronseal Ultra Tough Mattcoat Clear Varnish - 2.5L 
Timloc Underlay Felt Lap Vent (Box of 50) 
Hedgehog Gutterbrush Clips (Pack of 20) 
OB41 Electrical Contact Cleaner - 400ml 
TIMCO Precision Screwdriver Bit Set -18 Pieces 
Code 4 Cast Lead - 390mm x 6m 
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Thompson's One Coat Damp Seal - White 250ml 
Leather Roofers Tool & Nail Pouch, Dark Brown 
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Bond It Monster Water Resistant Tape - 48mm x 11m (Black) 
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Bond It Superglue Activator Accelerator Spray Cyanoacrylate Aerosol - 200ml 
Everbuild 502 Wood Adhesive – 5 Litre 
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10 x Permavent Black Breather Membrane – 1m x 50m Geotec Felt
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Geotec Felt
Where your lead protects your roof from the weather, Geotec felt protects the lead from the roof. It does this in three ways. Firstly, lead laid nakedly on materials like concrete or stone may be at risk of corrosion, while lead on timber may slowly be leached away by moisture. This may start to damage and destroy the lead layer. Geotec felt serves as an intermediate layer that will guard the lead from moisture or corrosion.
Secondly, Geotec felt decreases drag arising from thermal movement. Lead expands and contracts as the temperature changes it. However, often the materials it is laid on do not. In addition, they may be rough or have an uneven surface. This causes damage as the lead strains against the material holding it up. Geotec felt provides a gentle, smooth surface for lead to thrive on, letting it expand and contract safely.
Thirdly, geotec felt is porous and permits airflow. This allows moisture to be dried out and ventilates the underside of the lead and the topside of the materials the lead would otherwise rest on. This reduces damp, and therefore the chance of rotting or mould. Geotec felt can therefore be an important asset in reducing roof condensation.
