What are the codes for lead flashing

CodeThickness (mm)Recommended use(s)Code 62.65Flashings, pitched and tapered valley gutters, dormers and flat roofsCode 73.15Pitched and tapered valley gutters, dormers and flat roofsCode 83.55Pitched and tapered valley gutters, dormers and flat roofs

What is lead code?

The lead code refers to the thickness of the lead used to construct your roof, and choosing the wrong lead code for your construction will result in issues further down the line.

What is Code 3 lead?

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..

What's the difference between Code 3 and Code 4 lead flashing?

Code 4 lead has a much wider range of applications than code 3. Other than also being suitable for use as a soaker, it can also be used as: Flashing, pitched valley gutters, parapet, box and tapered valley gutters, dormers as well as vertical cladding.

What is Code 5 lead flashing used for?

Code 5 roofing lead is suitable for applications such as flashings, valley gutters, porches, dormers, cladding, box gutters, flat and pitched roofs. Important: The recommended maximum size for each thickness or code of lead will vary – the thicker the lead, the larger the laid piece can be.

Why is lead used for flashing?

Lead possesses a number of attributes that make it ideal for use in flashing. It is inherently resistant to corrosion, making it highly durable in exterior settings exposed to the elements. Another significant benefit of lead is its malleability.

What Colour is code 3 lead?

Code 3 LeadCode 4 LeadCode 5 LeadGREENBLUERED

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.

Do you need lead flashing?

“Lead flashing is essential where slates/tiles either meet a wall/chimney to ensure a water tight roof. Soakers will do their job but the lead work is needed. Also makes it look complete, and professional.”

Can felt underlay be fixed with stainless steel nails?

Stainless steel nails can be used for installing cladding, fascia, securing tiles, slate and other roofing materials, and are particularly useful in industrial areas or coastal areas where chemicals and salt are present – where aluminium nails wouldn’t be suitable.

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How much lead flashing do I need?

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.

How long can Code 5 lead be?

The increased thickness also means that, like code 4 lead, code 5 lead has increased resistance to thermal movement and therefore the maximum length of flashing can be increased by 50% over code 3 lead to 1.5metres. It isn’t advisable to use any flashing in longer than 1.5m lengths.

What is the thinnest lead flashing?

Code 3 Lead Flashing is the thinnest and lightest of all roofing lead. Measuring just 1.32mm in thickness, it is typically used to create lead soakers on slate or tile roofs.

What does lead patination oil do?

Patination Oil is white spirit based surface treatment that prevents white carbonate from forming on the surface of newly fitted Lead Sheet and reduces the risk of staining to adjacent materials.

How long should lead flashing last?

Lead flashing has a life expectancy in excess of 100 years if allowed to expand and contract freely.

What is a roof Soaker?

A soaker is a weatherproofing product that has been designed to sit between a tile and an object that protrudes from the roof. … The soaker will be fitted underneath the tile but will rise up the edge of the object to prevent water from entering the roof space and causing damage to the roof structure.

What is Valley Code lead?

Lead CodeThicknessUsesCode 73.15mmFlat roofing, parapet and tapered valley gutters, pitched roofing, dormers, and bay roofs and canopiesCode 83.55mmFlat roofing, parapet and tapered valley gutters, dormers, and bay roofs and canopies

What code is blue lead?

Code 4 – BLUE The code 4 lead weighs 4lbs per square foot with metric measurements of 20kg per square meter which equates to a standard thickness of 1.8mm.

Does lead flashing change Colour?

A lead roof will usually start out as quite a dark shade, but will turn lighter over time due to its exposure to the elements. The colour change isn’t too severe; long term colour change varies between differing shades of grey, all of which are in-keeping with the familiar lead aesthetic.

How wide should flashing be?

The flashing shall be a minimum of 4 inches (102 mm) high and 4 inches (102 mm) wide. At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and/or gutter.”

Is lead flashing safe?

Working with lead can put your health at risk, causing symptoms such as headaches and anaemia. These symptoms can result in other serious health effects too, including brain damage. Therefore, you should take precaution when working with lead.

What are the different types of flashing?

Continuous flashing: Also known as “apron flashing”. …
Drip edges: Often installed under the roofing felt along the eaves of a roof. …
Step flashing: Step flashing is a rectangular piece of flashing bent 90 degrees in the center. …
Valley flashing: A W-shaped piece of metal flashing.

Why is it called flashing?

The origin of the term flash and flashing are uncertain, but may come from the Middle English verb flasshen, ‘to sprinkle, splash’, related to flask. … Strips of lead used for flashing an edge were sometimes called an apron, and the term is still used for the piece of flashing below a chimney.

Do you need lead flashing on a flat roof?

Flashings on flat roofs Flashing is of the utmost importance on flat roofs as the potential for water pooling on the surface of the roof and seeping through the membrane is much greater, so proper defences are required to protect the roof materials.

What can be used instead of lead?

Ecomass Compounds are an ideal lead replacement material. Eco-friendly and injection moldable, our thermoplastic composites achieve the density of lead without any toxic concerns.

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 milled lead?

Milled lead is manufactured by passing a solid slab of lead back and forth on a rolling mill between closing rollers. Machine cast lead, on the other hand, is produced by dipping a rotating water- cooled drum into a bath of molten lead.

What is a slate nail?

Slate Copper nails are the preferred option for use in natural slating. They are available in a wide range of lengths and shank sizes to accommodate different fixing methods and slate thicknesses. Copper clout nails are made specifically for the job and comply with the current BS1202 part 2 for their manufacture.

What is a shank nail?

What is a Ring Shank Nail? Ring shank nails are those with ridges or spirals around the shank; those little ridges can increase the holding power of the nail by 40 percent or more. The ridges on the ring shank nails act as little barbs or wedges that lock the nails firmly into the wood once it’s driven.

Do they make ring shank roofing nails?

Ring shank roofing nails, sometimes called deformed shank roofing nails, are nails with ridges or grooves along the shank, so it is easy for holding shingles in place. They can made of galvanized, copper, stainless steel and aluminum. They are perfect for nailing ridge straps and flashing cleats.