What are the codes for lead flashing?
Find Out Which Lead Code you Need
| Code | Thickness (mm) | Recommended use(s) |
|---|---|---|
| Code 6 | 2.65 | Flashings, pitched and tapered valley gutters, dormers and flat roofs |
| Code 7 | 3.15 | Pitched and tapered valley gutters, dormers and flat roofs |
| Code 8 | 3.55 | Pitched and tapered valley gutters, dormers and flat roofs |
Should lead flashing go over or under tiles?
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.
How wide should lead flashing be?
For a standard 30 degree lean-to roof, against a brick wall, the lead on the roof should be minimum 150mm. The vertical lead should be minimum 75mm (incidentally this is the height of a brick) and the lead tucked into the chase should be a minimum of 30mm. This gives an overal minimum width to the lead of 255mm.
How far should lead flashing go in Brick?
The minimum recommended depth for lead roof flashing to be set into a chase is 25mm, but remember that this is roughly a quarter of the width of the remaining mortar. This is fine unless the brickwork becomes unstable, which may result in a need to reduce the depth.
What is code 5 lead flashing used for?
Code 5 lead is by far the most versatile and can be used in the same fashion as code 4 except for as a soaker. This lead can also be used for flat and pitched roofs.
What is code 3 lead flashing?
Code 3 lead is the thinnest gauge of lead used in commercial roofing and is suitable for light applications such as soakers at the abutment..
Do I need soakers and flashing?
“Generally, lead flashing would be the recommended choice, but in either case, lead flashing or lead soakers need to be completely sealed. Without correct sealing this can cause issues like damp, leaks or possibly the likes of your wall leak.
What is the difference between Code 3 and 4 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 is Code 3 lead flashing?