Code 7 Cast Lead - 360mm x 6m 
OX Pro Brick Trowel Philadelphia Pattern - 10"/250mm 
Timco Pozi C2 Strong-Fix Twin Cut Screws - 4.0mm x 40mm (Box of 200) 
Premium Stainless Steel Fixing Strips - 20m x 50mm x 0.4mm 
Klober Plain Roof Tile Vent Adaptor - KG990500 
ALM Code 8 Milled Lead - 1000mm x 3m 
Sika Multi-Use Biodegradable Wonder Wipes (60 Wipes) 
ALM Code 5 Milled Lead - 240mm x 3m 
84 x ERidge Dry Fix Ridge System + DeWalt XR Combi Drill & Impact Driver Twin Pack 
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Code 8 Cast Lead - 1200mm x 6m 
Everbuild Firefoam B2 Gun Grade - Pink 750ml 
Klober Double Roman Roof Tile Vent - Slate Grey KG9857-3-0429 (Box of 10) 
Soudal Insulating Foam Genius Gun 750ml - Champagne (Box of 12) 
Klober 20K Slate Vent KG9795-0429 Slate Grey 
Klober Profile-Line Twin Plain Tile Vent - Terracotta KG9861-0152 (Box of 10) 
FloPlast Half Round Downpipe Socket, Black 
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Azpects EASYSeal Sandstone Enhancer and Sealer 5L 
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Everbuild Bath & Kitchen Sealant - 200ml 
BORA - PM-4550 Adjustable Speedhorse XT 
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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.
