Thompson's Water Seal - 1L 
Bond It Bitumen Primer - Black 1L 
Everflex Premium+ 450 Builders Silicone – Brown 300ml (Box of 25) 
Everbuild EB25 Ultimate Sealant & Adhesive – Anthracite 300ml (Box of 12) 
Bora Workhorse Single Piece Stand with Folding Legs PM-3350 
Lead Flexi Slate Pipe Flashing - Pitched 
Ronseal Diamond Hard Floor Varnish - Clear Satin 5L 
Everbuild Exact Gap Foam - 750ml (Box of 12) 
ALM Code 3 Milled Lead - 1200mm x 6m 
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Everbuild Triple Action Wood Treatment – 25 Litre 
Everbuild Dual Purpose Foam Cleaner – 500ml (Box of 12) 
ALM Code 8 Milled Lead - 850mm x 3m 
Ronseal One Coat Damp Seal - White 750ml 
Code 6 Cast Lead - 850mm x 3m 
Hambleside Danelaw Double Plain Tile Vent, TV10/9 - Black (Box of 5) 
Ronseal Stays White One Coat Non-Drip Paint - Satin 2.5L 
Klober 15x9 Tile Vent - Brown KG9690-0247 (Box of 10) 
Siroflex SX Contractors LMN Silicone OAK 300ml 
OX Tuff Carbon Marking Pencil Value Pack 
Everbuild Opti-Mix Mortar Plasticiser - 1 Litre (Box of 12) 
Code 3 Cast Lead - 240mm x 6m 
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ALM Code 6 Milled Lead Flashing - 300mm x 3m 
Armatool Flooring Kneepads 
Everbuild External Frame Sealant - White 290ml (Box of 12) 
Code 5 Cast Lead - 600mm x 3m 
Klober Throat Adaptor - KG8000-3 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.
