Timloc Double Roman Tile Vent Red (Box of 6) 
Everbuild All Purpose Ready Mixed Filler - 1kg 
Code 7 Cast Lead - 180mm x 3m 
Everbuild Maximum Torque - White 290ml (Box of 12) 
Bond It B3 Fill And Fix Expanding Foam Aerosol - Beige 500ml 
Soudal Aquafix All Weather Sealant – Clear 300ml Geotec Felt
Best Sellers
-
12 x Knauf Insulation Loft Roll 44 – Combi Cut
From: £415.20 Incl VAT £346.00 Excl VAT Select options This product has multiple variants. The options may be chosen on the product page -
Soudal Pro 45P Superfast Wood Glue – 750g
£8.99 Incl VAT £7.49 Excl VAT Add to basket -
ALM Code 6 Milled Lead Flashing – 1000mm x 3m
£254.88 Incl VAT £212.40 Excl VAT Add to basket -
JCB Trade Zip Thru Hoodie
From: £31.77 Incl VAT £26.47 Excl VAT Select options This product has multiple variants. The options may be chosen on the product page -
Soudal Trade PU Construction Adhesive – Beige 290ml
£6.99 Incl VAT £5.83 Excl VAT Add to basket -
ALUKAP-XR Endstop Bar, White or Brown
From: £41.69 Incl VAT £34.74 Excl VAT Select options This product has multiple variants. The options may be chosen on the product page
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.
