A1 Roofing Bracknell

As a homeowner in Windsor and Maidenhead, you understand the importance of maintaining a secure and watertight roof. One crucial aspect of this is the installation of lead flashing on pitched roofs. In this article, we will walk you through the step-by-step process of installing lead flashing, highlighting the key considerations and best practices to ensure a successful outcome.

Lead flashing is a type of weatherproofing material used to prevent water from entering the roof at vulnerable areas, such as chimneys, vents, and skylights. It is a popular choice due to its durability, flexibility, and resistance to corrosion.

• Lead flashing sheets (code 4 or 5)
• Lead flashing rolls (for larger areas)
• Lead welding kit
• Silicone sealant
• Roofing nails
• Flashing clips
• Measuring tape
• Pencil and marker

Before starting the installation, ensure the roof is clean and clear of debris. Check the brickwork and rendered wall surfaces for any cracks or damage, and repair them as necessary.

Measure the area where the flashing will be installed, taking into account the overlap required (typically 150mm). Cut the lead flashing sheets to the required size using a lead cutter or a hacksaw.

Using a lead former or a hammer and stake, shape the lead flashing to fit the contours of the roof. Ensure the flashing is smooth and even, with no creases or wrinkles.

Begin by installing the lead flashing at the lowest point of the roof, working your way up. Use flashing clips to secure the flashing to the roof, ensuring a tight seal. Apply silicone sealant to the edges of the flashing to prevent water ingress.

Overlap the lead flashing sheets by 150mm, ensuring a watertight seal. Use lead welding to secure the overlap, applying heat to the lead to create a strong bond.