Better Sealing & Support at Roof Fixings

The screw does the fastening, but what happens directly beneath its head can determine how well an exposed fixing handles water. Bremick Seals & Plates For Self Drilling Screws include EPDM sealing washers, roofing seals, specialised sheet seals & plates for compatible roofing, cladding & sheet-fastening assemblies.

Look beyond outside diameter when choosing these components. Screw gauge, seal opening, plate dimensions, roofing material, fixing position, substrate & exposure all influence what belongs at the penetration. Bremick's range includes EPDM seals, cyclone/roofing seals, fibreglass seals, polycarbonate seals & cyclone plates, giving different roof-sheet applications their own fastening solutions.

Starting with the fastener itself? Self-Drilling Screws provides the broader screw range. Working with translucent fibreglass roofing? Bremick Fibreglass Screws covers specialised fixings for that material.

Before the driver touches the screw, check the whole fixing stack. A seal or plate needs to suit the fastener, sheet & installation detail rather than simply fit over the thread.

What Are Bremick Seals & Plates For Self Drilling Screws?

Small components can carry an important responsibility at a weather-exposed fixing.

Bremick's range includes products such as:

► EPDM seals & sealing washers
► Cyclone/roofing seals
► Fibreglass seals
► Polycarbonate seals
► Cyclone plates
► Cyclonic plate & seal arrangements
► Components used with specialised roofing fixings

Each component has its own role.

EPDM sealing washers & seals provide a resilient interface around compatible screw penetrations.

Plates provide a larger bearing area where the specified fixing arrangement requires one.

Specialised fibreglass & polycarbonate seals address fastening situations where ordinary steel roof-sheet details shouldn't simply be copied across.

Why Choose Bremick Seals & Plates For Self Drilling Screws?

Help Seal Exposed Screw Penetrations

Rain doesn't need much space to find a path through roofing.

A correctly selected EPDM sealing washer compresses beneath a compatible fastener head to help seal the penetration through suitable roofing or cladding.

Correct seating matters just as much as component selection.

Spread Load Where the Fixing Detail Requires It

Certain roofing assemblies use plates to increase the bearing area around the fixing point.

That larger footprint can form part of specialised high-wind or cyclonic fastening arrangements.

Plate dimensions & installation should follow the required roof-system detail rather than guesswork.

Give Different Sheet Materials Their Own Solution

Steel, fibreglass & polycarbonate aren't interchangeable roof sheets.

Bremick identifies dedicated fibreglass seals & polycarbonate seals, making material type an important part of product selection.

Complete the Fastening Assembly

One screw penetration can involve several interacting components.

The fastener, sealing washer, plate, roof sheet, support material & installation method all contribute to the finished fixing.

Treat them as an assembly rather than unrelated hardware.

Common Applications

Metal Roofing & Cladding

Picture a hex-head self-drilling screw passing through profiled steel into a metal purlin.

Where the fixing calls for an EPDM seal, the sealing washer sits beneath the screw head & needs to contact the sheet correctly without being excessively crushed.

For related roof hardware, browse Roofing Nails & Fasteners.

Shed Roofs

A machinery shed can contain hundreds or thousands of exposed screw penetrations.

Consistency matters at that scale.

Using the specified seal, screw & installation method across the roof helps avoid creating a mixture of differently seated fixings.

Wall Cladding

Vertical sheet still needs attention around exposed penetrations.

Fastener type, seal configuration & fixing location should suit the cladding system rather than being copied automatically from the roof above it.

Fibreglass Roof Sheeting

Translucent fibreglass introduces its own fastening considerations.

Bremick includes fibreglass seals within its range, providing a material-specific option where the complete fixing arrangement calls for one.

Polycarbonate Roofing

Polycarbonate can expand & contract as temperatures change.

Bremick identifies dedicated polycarbonate seals, including self-drilling screw products supplied with EPDM polycarbonate seals for compatible applications.

Follow the sheet & fastener requirements rather than treating polycarbonate like ordinary steel roofing.

Cyclonic Roofing Assemblies

High-wind roof systems can involve specialised fastening arrangements.

Bremick offers products incorporating universal cyclonic plates & seals for specified roofing applications.

A cyclone plate isn't a universal upgrade. It needs to form part of the correct roof-system detail.

Roof Maintenance & Re-Roofing

Replacing a deteriorated washer?

Use the old fixing as evidence.

A cracked seal may be the obvious fault, but the screw, coating, fixing hole, sheet & support underneath should also be inspected before the replacement goes in.

Product Selection Guide

Start With the Roof Material

What's being fixed?

That first answer can narrow the accessory choice considerably.

► Steel roofing & cladding
► Fibreglass sheeting
► Polycarbonate roofing
► Specialised high-wind roofing systems
► Existing roof requiring replacement fixings

Once the sheet material is known, check the screw & sealing arrangement required for that system.

EPDM Seals & EPDM Sealing Washers

EPDM is commonly used as the resilient sealing component beneath compatible roofing screw heads.

Bremick identifies EPDM seals within its self-drilling screw range & also supplies self-drilling screws incorporating EPDM sealing components.

The seal needs to match the fixing rather than simply resemble the old washer.

Sealing Washer vs Ordinary Flat Washer

They aren't doing the same job.

Don't replace a purpose-selected roofing seal with a generic flat washer because the diameters happen to match.

Cyclone/Roofing Seals

Some roofing systems require a more specialised sealing arrangement.

Bremick lists cyclone/roofing seals alongside its EPDM, fibreglass & polycarbonate products.

Choose them around the documented roof fixing rather than treating “cyclone” as a description for any oversized roofing washer.

What Does a Cyclone Plate Do?

A cyclone plate increases the bearing area around a compatible fixing.

Bremick also supplies cyclonic assemblies incorporating a universal cyclonic plate & seal for specified roofing profiles & substrates.

The plate works as part of that assembly.

It shouldn't be selected independently from the fastener, roofing profile & project requirements.

Cyclone Plate vs Sealing Washer

These components solve different parts of the fixing problem.

Some specialised assemblies can incorporate both plate & sealing functions.

Polycarbonate Seals

Translucent polycarbonate roofing requires more thought than simply choosing a longer roofing screw.

Bremick supplies self-drilling products with EPDM polycarbonate seals for compatible polycarbonate-to-metal applications.

The company's PolyCut range also uses a dedicated polycarbonate seal as part of a system designed around expansion of the sheet.

That makes the correct seal only one part of the installation.

Fibreglass Seals

A fibreglass roof sheet can call for a different fixing detail from metal roofing.

Bremick specifically identifies Fibre Glass Seal products within its seals & plates range.

Match the seal to the relevant screw & roofing system rather than substituting by appearance.

Match the Seal Opening to the Fastener

A washer that slides over the thread hasn't necessarily passed the compatibility test.

Before ordering, check:

► Screw gauge
► Fastener head
► Seal opening
► Seal outside diameter
► Plate opening
► Plate dimensions
► Screw length
► Required penetration
► Supporting material

Compatibility should be established before installation begins.

Allow for the Complete Fixing Stack

Adding a plate or specialised seal changes the material beneath the screw head.

That can affect the effective length available for the fastener to penetrate & engage with the substrate.

Check screw length against the complete assembly rather than considering roof-sheet thickness alone.

Screw Length Still Matters

Too short & the fastener may not develop the required engagement.

Unnecessarily long isn't automatically better either.

Choose the screw around the roof system, sheet profile, accessory thickness & supporting substrate.

For the wider family of screw fastening options, browse Screws & Anchors.

Watch the Washer While Driving

The impact driver can tell you plenty through sound.

The washer tells you more through shape.

A properly selected sealing component should seat according to the relevant fastener & roofing-system requirements without being severely distorted.

What Does Overdriving Look Like?

If the sealing material is squeezed dramatically out from beneath the screw head, stop & inspect the fixing.

Excessive driving can deform the washer, distort the sheet or compromise the sealing component.

More torque isn't the same thing as a better weather seal.

Underdriving Creates the Opposite Risk

A loose-looking washer deserves attention too.

Insufficient seating can leave inadequate contact around the penetration.

Correct installation sits between those two extremes.

Keep the Fastener Square

An angled screw can load the sealing washer unevenly.

Where the fixing detail requires perpendicular installation, keeping the driver square to the fixing surface helps the seal seat more consistently.

Technique matters before the trigger reaches full speed.

Roofing Profile Changes the Fixing Detail

Corrugated & ribbed roofing profiles don't necessarily place every screw in the same position.

Follow the roof manufacturer's fixing requirements for the particular profile.

Don't relocate a screw merely because another part of the sheet looks easier to drill.

An Enlarged Hole Needs More Than a New Washer

Pulled an old screw & found the fixing hole damaged?

That's a mechanical problem as well as a sealing problem.

A fresh EPDM washer won't restore thread engagement in an enlarged or stripped fixing point.

Repair the underlying fixing detail first.

Replacing a Failed Roof Seal

A deteriorated washer can tell a useful story.

Inspect for:

► Splitting
► Hardening
► Excessive flattening
► Uneven compression
► Corrosion around the fixing
► Loose screws
► Damaged roof sheet
► Enlarged holes
► Misaligned fasteners

Finding the reason for failure is more useful than simply replacing what failed.

Should the Screw Be Replaced Too?

Sometimes, yes.

A corroded, damaged or poorly engaging self-drilling screw can remain a weak point even after a new seal is fitted.

Assess the fastener & sealing component together.

Coated Roofing Needs Compatible Components

Colour matching is only one consideration around coated roof sheet.

Fastener finish, sealing material, plate material & environmental exposure all need to suit the specified roofing system.

A matching colour doesn't prove technical compatibility.

Coastal & Industrial Sites Need Extra Attention

Salt exposure, persistent moisture & industrial contaminants can increase demands on external fasteners.

Consider the screw coating, plate, sealing component & roof material together.

Don't judge environmental suitability from appearance alone.

Seal & Sealant Are Different Products

The names are similar.

The jobs aren't.

A roofing screw seal or EPDM sealing washer sits mechanically beneath the fastener head.

A roof sealant is an applied compound used around compatible joints, laps & other details.

If the project needs applied sealing products as well, Roof Sealants & Adhesives covers that separate requirement.

Don't Upsize a Plate Without Checking the Detail

A larger plate can look like an obvious solution around a questionable fixing.

Roofing assemblies don't work on appearance alone.

Where a particular plate forms part of the required fixing arrangement, use the specified configuration rather than improvising with a larger component.

Driver Setup Can Protect the Seal

A worn socket, poorly controlled impact driver or angled approach can make consistent installation difficult.

Set up the tool so each fastener can be driven squarely & stopped at the correct seating condition.

For other equipment used around roof fixing work, Roofing Tools & Accessories can help complete the installation kit.

Sealing Washers Need Inspection Over Time

Roof fixings live outside.

Periodic inspection can reveal seals that have cracked, deteriorated, shifted or become associated with loose or corroding fasteners.

Finding those problems early can make maintenance considerably simpler.

Don't Assume Every Roof Leak Needs Sealant

Water near a screw penetration may point directly to the fixing assembly.

Inspect the screw & washer before covering the area with silicone.

Where the sealing washer is the failed component, correcting the fixing itself is generally more logical than hiding it beneath an applied sealant.

For replacement sealing components used across fastening work, browse Sealing Washer.

Expert Tips

Washer bulging well beyond the screw head? Stop before repeating the same driver setting across the roof & inspect whether the fastener is being overdriven.

Replacing one leaking fixing on an older shed? Check neighbouring screws while you're there. Similar-age seals may be showing the same deterioration.

Changing from steel to translucent sheet? Recheck the complete fixing arrangement instead of carrying the metal-roof washer across by habit.

Cyclonic plate shown on the project detail? Match the plate, seal, fastener & roof profile to that arrangement rather than substituting by size alone.

Ordering from an old loose washer? Record where it came from, the screw gauge & sheet type before using it as the sample.

Working near salt exposure? Consider the fastener finish, plate, seal & roof material together.

Seal sitting unevenly after driving? Check screw angle, sheet profile & component compatibility before adding torque.

Fastener spins without tightening? Investigate the hole & substrate. A new sealing washer won't restore lost thread engagement.

Multiple fixing systems on one project? Keep seals & plates separated & labelled so visually similar components don't migrate between roof areas.

Diagnosing water around a screw? Check both sides of the problem: mechanical attachment & weather sealing.

Need a broader reference for selecting fasteners across different materials? Fastener Guide Bolts Screws Anchors covers practical fixing decisions for trade work.

A small washer can matter as much as the driver putting the screw in. Why Good Fasteners Matter More Than the Tool You Drive Them With looks at why the hardware itself deserves careful selection.

Roof maintenance is easier before weather & workload expose neglected equipment. Spring Jobsite Prep Getting Your Gear Ready provides practical preparation guidance for tools, equipment & upcoming site work.