What does Code 4 lead flashing mean?
What does Code 4 lead flashing mean?
Code 4 lead flashing is used for a range of roofing applications, including soakers, flashings, and vertical cladding. It’s 1.8mm thick and weighs 20.41 kg/m2. This makes it a malleable and workable product that can be used easily in a wide range of settings.
What size does Code 4 lead come in?
Code 4 Lead Flashing can be supplied in widths between 150mm and 2440mm, with both 3m and 6m rolls being available. At 1.80mm thick and weighing 20.410kg/m2, Code 4 Lead Sheets can be used on a handful of applications whilst still providing superb durability and remaining easy to fit.
What is the difference between Code 4 and Code 5 lead flashing?
Lead codes are actually very simple. Ranging from Code 3 to Code 8 they separate lead into different thickness and weight….What Are Lead Codes?
| Lead Code | Thickness (mm) | Weight (kg per square metre) |
|---|---|---|
| Code 3 | 1.32mm | 14.97kg |
| Code 4 | 1.80mm | 20.41kg |
| Code 5 | 2.24mm | 25.40kg |
| Code 6 | 2.65mm | 30.10kg |
What size lead flashing do I need?
Normally, lead flashings should not exceed 1.5m in length, with laps of not less than 100mm. Flashing should be tucked into a mortar joint 25mm deep and at least 75mm above the tiling level and lead wedged into place. The joint should then be pointed with mortar or using suitable exterior grade sealant .
What code lead should I use?
What are the thicknesses of each roofing lead code?
| Lead Code | Thickness | Uses |
|---|---|---|
| Code 7 | 3.15mm | Flat roofing, parapet and tapered valley gutters, pitched roofing, dormers, and bay roofs and canopies |
| Code 8 | 3.55mm | Flat roofing, parapet and tapered valley gutters, dormers, and bay roofs and canopies |
How long should lead flashing last?
Flashings can be made from a number of materials: lead is often the best material for flashings being flexible, capable of being welded and long lasting – a correctly installed lead flashing should last at least 60 years.
What size should valley boards be?
The valley boards should be at least 225mm wide each side of the valley to allow for a 125mm wide open valley, with timber upstands set 150mm from the centre line of the valley and enough width left to support the ends of the tile battens.
What is code 6 lead?
Code 6 Lead is 2.65mm thick (a 18% increase over code 5 lead) and weighs 30.05kg/m2 (Thickness to BS EN12588 tolerances of +/- 5%) Whether the roof you are working on is sheltered or is exposed to more severe weather, code 6 lead can be used for every aspect of pitched roofing or flat roofing.
Is there an alternative to lead flashing?
Many recognisable big-name brands offer alternatives to lead flashing, including Ubbink, Icopal, Deks and Cromar.
What does codes mean in lead?
Lead codes determine the weight (and hence the thickness) of lead sheet. The number in the code simply equates to the weight in lbs, per square foot of lead.
What are the types of lead flashing?
There are three main types of flashing that are typically used in roofing applications and are discussed in our lead flashing installation guide: Apron flashing, Chimney flashing and Step flashing.
Do roofers still use lead flashing?
As long as appropriate safety precautions are taken, lead flashing is still the recommended choice for large residential, commercial or industrial builds.
