FloPlast Square Line External Stop End Black – 114mm 
FloPlast Half Round External Stop End, Black – 112mm 
Soudal Roof & Gutter Sealant – Black 290ml (Box of 12) 
Everflex Premium+ 450 Builders Silicone – Brown 300ml (Box of 25) 
Klober Profile-Line Limarech Tile Vent - Terracotta KG9859-3-0152 (Box of 10) 
Everbuild Showerproof Bathroom Silicone - Clear 280ml 
FloPlast Half Round Internal Stop End, White – 112mm 
Timloc Plastic Insulation Retaining Discs - 80mm Red (Pack of 250) 
Ronseal Crystal Clear Outdoor Varnish - Matt 2.5L 
FloPlast Round Shoe - White 
ALM Code 8 Milled Lead - 800mm x 3m 
Everbuild B1 Hand Held Expanding Fire Rated Foam - Pink 750 ml 
Cromar Roofing Felt Adhesive - Black 5 Litre 
Timloc Plain Tile Vent Red (Box of 14) 
ALM Code 5 Milled Lead - 1200mm x 3m 
Everbuild Everflex Premium+ 500 Bath & Sanitary Silicone - Clear 295ml (Box of 25) 
FloPlast Half Round Fascia Bracket, White – 112mm 
Easy-Trim Over Fascia Vent - 10mm x 1m 
Everbuild Lumberjack 5 Minute PU Wood Adhesive Gel – 310ml 
Klober Double Pantile Vent - Brown KG9858-3-0247 (Box of 10) 
Ronseal Ultra Tough Hardglaze Clear Varnish - 750ml 
Timco Lithium EP2 Grease - 400g 
FloPlast Half Round Downpipe Shoe, Black – 68mm 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.
