• Building Products
• Lead Related Products
• Underlays
• Geotec

• Geotec
• Building Paper

Geotec Underlay

Prevents wear due to thermal movement.

• Geotec 220PY underlay is used to isolate sheet metal roofing from substrates allowing metal sheet to expand and contract with temperature changes.
• Geotec 220PY is a non-woven, needle punched, polyester textile underlay, weighing 220g/m2, conforming to the Lead Sheet Association’s requirements.

Geotec is found to be particularly useful on existing traditional timber boards to prevent ridges and fractures forming on the lead sheet where the lead ridges over the edges of the boards.