Sheet fixing / weather sealing

Roofing and cladding fixings start with the support.

Ask Jorkli in Austin, Texas about roofing screws wholesale and profile-matched closures. This catalogue separates the fixing that holds a sheet from the component that closes its weather path. Keep those requirements distinct when you send a supply enquiry.

Enquiry basisScrews per box. Closures per set or pack. Tape per roll.

Quantity, screw specification, closure profile and tape dimensions determine the quotation basis in USD. Stock and lead time are checked after enquiry. No binding price or delivery promise is published here.

Send an enquiry

Roofer fitting a washer-backed screw through corrugated sheet — Sheet / sealing washer / support. The screw passes through different materials; every interface matters.

Sheet gaugeSupport thicknessWasher compressionProfile pitchExposure

A check you can use

One screw length does not describe the connection.

A roofing screw can look right on the bench and still miss the support requirement. Record the assembly, not just the visible head.

Selection record for a roofing or cladding enquiry
Connection detail	What belongs in the request	Why it changes the line
Outer sheet	Metal type, thickness and coating; identify a profiled or flat section.	Sheet material and surface coating affect corrosion compatibility and the sealing contact.
Supporting member	Timber or metal; give the actual support thickness where known.	The point and thread must suit the support. A drill point is not a universal timber fixing.
Assembly thickness	Sheet, intervening layers and support engagement requirement from the project detail.	Overall screw length includes portions that do not provide effective engagement.
Washer and head	Head interface and specified sealing washer, including any replacement reference.	A metal washer alone is not evidence of a suitable weather seal.
Exposure	Indoor or exposed installation, contact materials and unusual chemical or coastal conditions.	Coating selection must address the environment and the other metals in the assembly.

These are selection questions, not a fixing schedule. Pull-out capacity, spacing and permitted installation positions come from the project requirements and the identified product documentation.

Wholesale screw enquiries

Roofing screws must hold without crushing the seal.

The catalogue line is a washer-backed screw for compatible sheet and support. The exact screw body material, coating and sealing washer compound are confirmation points, not properties to infer from a photograph.

For a trade counter restock, separate timber-support requirements from metal-support requirements. They can use different points and threads even when the heads look alike. For a site call-off, include the sheet profile and the connection detail already specified for the job. Jorkli uses those details to check the requested line rather than treating a longer screw as an automatic substitute.

Washer compression is part of the connection. An under-seated washer can leave a water path; driving harder can distort the washer or sheet instead of improving the seal. Use the identified screw manufacturer's seating guidance. This catalogue does not prescribe a torque value for an unknown screw and substrate.

Catalogue construction: Washer-backed screw with point and thread selected for the stated support
Required interface: Head and setter fit; confirm clearance around the washer
Replacement detail: Original fixing reference and condition of the existing hole
Enquiry basis: Per box, with pack count and specification confirmed on enquiry

Existing holes are not new holes.A stripped or enlarged fixing hole changes the replacement question. State that condition before asking for the same diameter again.

Roofing screw and closure specification

Profile checkA closure follows the sheet shape. Compressing the wrong profile does not make it the right one.

Sheet edges / closure strips

Close the profile, not the ventilation route.

Closure strips fill the shaped gaps at specified sheet edges to limit weather and debris entry. The profile is the buying detail. Ask for the sheet reference, corrugation pitch and depth, plus whether the closure fits above or below the sheet. A generic “corrugated closure” can describe shapes that do not match.

The strip material and compression characteristics need confirmation against the selected line. Do not infer foam density, fire performance or a vented construction from its appearance. If the roof detail calls for ventilation, state it. Filling a gap that is meant to carry air can create a different problem from the one you set out to solve.

Form: Profile-specific closure strip
Placement: Sheet edge and upper or lower profile orientation as specified
Fit reference: Sheet profile name or measured pitch and depth, with units
Enquiry basis: Per set or pack; coverage and contents confirmed on enquiry

Send an enquiry

Weather-sealing lines

An overlap seal is not a repair patch.

Two tape requirements belong in different enquiry lines, even when both concern a roof seam.

Butyl tape under compatible overlaps

Compressible butyl sealing tape belongs in a compatible lap detail. The mating surfaces and fastening arrangement affect whether that tape can form the intended seal. Include the tape width and thickness required by the detail, the sheet finish and whether it is protected within the overlap.

Cleanliness is not a minor note. Dust, oils and incompatible residue can interrupt contact. Surface preparation and application temperature come from the selected tape's instructions; this page does not invent a universal minimum temperature or pressure.

Enquiry basisPer roll; width, length and quantity confirmed.

Compound and tape compatibility

Reinforced tape for a stated repair

Roofing repair tape is a reinforced sealing line for a defined repair context. Name the existing roof surface and the condition of the seam. Reinforcement does not establish adhesion to every membrane, and a surface patch does not prove that the source of a leak has been identified.

State whether the repair faces standing water, movement or an existing coating. Compatibility with the substrate and expected exposure must be checked before treating a roll as a permanent detail. Jorkli supplies component enquiries, not roof inspections.

Enquiry basisPer roll; repair surface and dimensions confirmed.

Repair tape selection context

From request to confirmation

Send one assembly, with separate component lines.

That lets a buyer compare the screw box with a screw box and the closure coverage with closure coverage. Tape and fixings do different work. Keep both in the same enquiry if they serve the same roof detail, but do not hide their quantities in one total.

Identify the sheet and support.At enquiry, give the sheet material and profile, the support material and any specification reference you are working to. Include exposure and distinguish new installation from replacement.
State quantities in buying units.Use screw count or box requirement, closure length or set requirement, and tape dimensions with the number of rolls. Mark an estimate as an estimate rather than implying it is an approved takeoff.
Resolve the fit before a substitution.Jorkli checks the requested group and asks about missing compatibility details. A different coating, washer or profile is a change to discuss, not an invisible equivalent.
Review the confirmed basis.Availability, pack contents and lead time are checked after enquiry. Review the supplied line details and any applicable delivery charges or taxes in the written quotation before deciding to proceed. Sending the request does not reserve stock.

Know the boundary

For component buyers, not a substitute for a roof design.

You can enquire about partial replacement requirements as well as grouped supply. Pack quantities remain subject to confirmation; listing a per-box basis does not promise that a box can be split. There is no checkout and no automatic dispatch date.

If you need a fastening schedule, leak diagnosis or a warranted installation, this catalogue is not that service. Use the roof system's requirements and the project professional's direction for the assembly design. Product-specific warranty terms must be confirmed in writing; read the warranty position before relying on coverage.

An unknown sheet profile is a reason to ask for identification, not a reason to guess. Give dimensions with units, or state the original product reference in the enquiry. No load rating or universal weather-seal promise is implied by this page.

Roofing and cladding enquiry

Bring the sheet detail. Get the line checked.

Send the sheet profile and support material with your component quantities. Ask for the box, pack or roll basis in the same request so the comparison starts on equal terms.

Jorkli is in Austin, Texas. The catalogue accepts United States supply enquiries; availability and delivery arrangements are confirmed for the request, not inferred from your location.

Send an enquiry

Inquiry only / USD / No payment on this website / No installation service

Roofing and cladding fixings start with the support.

Close the profile, not the ventilation route.

Butyl tape under compatible overlaps

Reinforced tape for a stated repair

Send one assembly, with separate component lines.

For component buyers, not a substitute for a roof design.

Keep the interfaces together.

Bring the sheet detail. Get the line checked.

Component support