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Lead Underlay

Lead Underlay

Lead underlay is an essential part of your roof structure which provides a uniform, flat surface for your lead work, further eliminating concerns about exposed nail heads, uneven edges, or rough wood knots. 

Not only does lead underlay separate the lead sheet from the substrate, but it also minimises the resistance between the two, enabling thermal expansion and contraction. Furthermore, lead underlay prevents roof condensation. By decreasing the possibility of trapped moisture between the lead and substrate, underlay helps maintain the longevity of the lead by protecting it from corrosion.

Not only does lead underlay separate the lead sheet from the substrate, but it also minimises the resistance between the two, enabling thermal expansion and contraction.

Furthermore, lead underlay prevents roof condensation. By decreasing the possibility of trapped moisture between the lead and substrate, underlay helps maintain the longevity of the lead by protecting it from corrosion.

At JJ Roofing Supplies, we stock Geotec lead underlay, ensuring an adequate amount of airflow between the roof elements. With the airflow ventilating the layers in the roof, any moisture that may have formed is dried effectively, preventing the detrimental effects of dampness. 

Shop lead underlay at JJ Roofing Supplies, today!

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