Leeds & District Roofing Blog

Is lead best for a chimney stacks.

Updated: Jul 19

Lead is put around the base of your chimney stack to keep it watertight. There are a few components of lead that make up the lead on the chimney stack.

  • Lead apron

  • Lead soakers

  • Lead flashing

  • Lead Gutter back

Each of the above is typically installed in phases, and each component may be repaired independently. For safety reasons, you should have a professional fit the lead since it might leak.

There are several reasons why lead is utilised around chimney stacks.

I've seen houses with lead chimney stacks that have been there for more than 90 years, so the lifespan is very substantial.

There is loads of lead alternatives on the market today but non will out perform lead. The only advantage i see that these substitutes have over lead is there is a lot of lead that is being stolen lately as of the high scrap price. These new alternatives have no value when removed, so people tend not to remove them.

Should i use a lead alternatives on my chimney

I have tried and tested most brands on the market, but when it comes to leading chimney stacks, i believe they just dont have the benifits lead does.

They can be used as flashings and soakers, but when it comes to the gutter back they dont handle the volume of water like lead. I have seen other roofers in Leeds use stuff like alto for the gutter back and they have leaked badly.

What are lead alternatives

Alternatives to lead are, well, alternatives to lead. Instead of using lead flashing, these rolls of materials may be utilised to save money, time, and the need for a specialised lead worker. Roofers have utilised lead in the past to erect and preserve ancient or listed structures, but it's a costly and easily stolen substance!

Roofing contractors may still accomplish the desired appearance by using lead replacements, which are available in a variety of thicknesses.

What is the life expectancy of lead on roofs

Lead flashing has a life expectancy in excess of 100 years if allowed to expand and contract freely. However, lead roofing repairs should only be performed by a skilled and experienced roofing firm like Leeds & District Roofing Ltd to ensure that your house or business is protected for many years to come.

What code lead should i use on my roof

Code 3

Perfect for soakers

Code 4

Flashings, soakers, pitched valley gutters, dormers and vertical cladding

Code 5

Pitched and tapered valley gutters, dormers, flashings, vertical cladding, flat roofs

Code 6

Flashings, pitched and tapered valley gutters, dormers and flat roofs

Code 7

Pitched and tapered valley gutters, dormers and flat roofs

Code 8

Pitched and tapered valley gutters, dormers and flat roofs

When should i replace my lead

It might take a few months or even a few years before any flaws in the lead flashing become apparent. Failure of lead flashings may result in a number of different types of deterioration, including dry and wet rot, insect infestation, and other types. The homeowner should be on the lookout for splits and cracks in the lead flashing to assess whether or not it needs to be changed. If these circumstances are not handled, the waterproofing protection will be rendered ineffective. If more investigation is conducted, it will be possible to determine whether or not the lead flashing has deteriorated as a result of heat expansion and contraction. The presence of mould or water leakage in the attic space of a property should be checked first, and then a roof inspection should be carried out. This is due to the fact that problems with lead flashing are the most probable reason.

Is it costly to replace lead on a chimney stack

The cost to replace the leadwork that surrounds a chimney may range anywhere from £450 to £900, depending on the location of the chimney, whether or not scaffolding is necessary, and the height of your property (one story or two).


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