What is the difference between a soaker and a flashing?

Author: Salvatore Breitenberg  |  Last update: Thursday, November 6, 2025

Lead soakers and step flashings are two types of lead flashing that are used to protect buildings from water damage. Lead soakers are used to protect roof penetrations, such as chimneys and vents, while step flashings are used to protect steps and other vertical surfaces.

What are soakers for on lead flashing?

Lead soakers are an integral part of virtually any tiled roof. Not only do they prevent any water ingress at the abutment to a wall, but also provide a professional aesthetic. Using standard lead rolls to form soakers can be time-consuming.

Do roofers still use flashing?

Among these, wall flashing stands out as a critical component, especially with asphalt shingle roofs. Wall flashing is not just an add-on; it's an essential part of ensuring the longevity and effectiveness of your roof.

Why do you need soakers?

Roof soakers are weather and waterproof products you can use to prevent water from entering a roof space. When fitted underneath a tile, a roof soaker ensures the water runs down the joint where the roof meets the soaker and the tiles.

What are the two general types of flashings?

You'll find that some types of flashing correspond to a specific technique.
  • Step flashing: Step flashing is best for where the roof face meets a wall, for example, where a dormer projects out of the roof. ...
  • Counter-flashing: Counter-flashing is often used to flash chimneys.

How to fit Lead Soakers - Lead soakers for a Wall or Chimney stacks

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.

Does flashing have to be stepped?

Stepped flash- ing is usually preferred to gutter flashing due to the large area being drained. In some cases, the brick may be supported on a steel lintel that is sloped to follow the pitch of the roof. In this situation, sliding of the brickwork along the lintel may be a concern.

What is the difference between flashing and soaker?

In summary

A cover flashing can be used in addition to the secret gutter for added protection against excess water flow and build-up of debris. Traditional soakers are used with double lapped plain tiles and slates. They are not suitable for use with single lapped flat tiles.

What is the purpose of soakers?

Their main function is to absorb moisture from the blades after your skating session. It is crucial to wipe the bottom part of your skates including the blades after each skating workout.

What is a soaker?

a person who drinks alcohol to excess habitually. synonyms: alcoholic, alky, boozer, dipsomaniac, lush, souse. drunk, drunkard, inebriate, rummy, sot, wino. a chronic drinker. noun.

What is the problem with roof flashing?

Seasonal temperature fluctuations can cause roof flashing to warp. Flashing can also bend as the building settles, and it can rust with age. Old flashing experiencing any of these issues is likely to fail the materials it is designed to protect. If the flashing is aged, the entire roof probably is as well.

Does flashing go over or under shingles?

Flashing should overlap the roof-covering material, but on asphalt shingle roofs, for aesthetic reasons, the part of the headwall flashing that extends down over asphalt shingles is often covered with a course of shingle tabs.

Where is flashing most typically found?

Flashing often appears as a piece of metal trim (sealed with caulk or rubber) that covers the seams surrounding various penetrations in your roof. Penetrations include things like chimneys, skylights, roof vents, dormers, and walls.

What is the code for lead soakers?

Code 4 is generally the industry-standard for sealing and waterproofing soakers, pitched valley gutters, dormers, and vertical cladding. Aside from codes 3 and 4, there are additional codes for lead flashing coils and sheets that vary in thickness and are used to seal different roofing systems.

Do we 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.

Can I use WD40 on lead flashing?

The best solution is not to paint it and to use an oil to treat the lead; this will keep it supple and stop it from cracking. The best oil's to use are one of the following, Patination Oil, WD40 or 3in1 oil, all are widely available from hardware shops or builders merchants.

Where do soakers go on a roof?

This can be anything from a chimney stack to a ventilation pipe, with the soaker being installed at the point the roof meets the protrusion.

What is the difference between sprinkler and soaker hose?

Sprinklers are better for larger areas, while soaker hoses are great for targeting the foot of plants in flower beds and vegetable gardens. A sprinkler is always going to be the best option for foliage, grass, and larger areas where you need wide coverage.

What is the purpose of a lead soaker?

Place lead soakers between each tile and against the wall or chimney. These help in directing water away from the joint.

Are lead soakers required?

"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."

What is the minimum height for flashing?

The completed base flashing should extend between 8" (203 mm) and 24" (610 mm) above the level of the roof, and shall extend onto the roof mem- brane a minimum of 4" (102 mm).

What are the rules for lead flashing?

lead flashings should have a minimum upstand of 75mm and minimum lap of 100mm. flashings should be tucked 25mm into a bed joint and wedged in place at not more than 450mm centres, or a minimum of one per step for stepped flashings.

Where is flashing required?

Most of the cracks that require flashing are found where dissimilar materials meet — for example, where a chimney meets roofing, where roofing meets a wall, or where siding meets a window — or at the exposed perimeter of surfaces like roofs and walls.

What is the best drip edge?

The best roof drip edge depends on your specific roof, climate, and budget. However, a Type D or T-style roof drip edge in galvanized steel is an excellent choice for many roofs. For expert advice tailored to your needs, consult a qualified roofing professional.

Do interlocking tiles need soakers?

Soakers or a secret gutter should be installed at abutments where plain or flat interlocking tiles are used. Cover flashings alone can only be used where they discharge over a roll on a profiled tile.

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