Saddle Washers
JOPAL saddle washers provide a profile-matched bearing and sealing interface for selected profiled roofing and cladding connections. They are suited to applications where the fastener connection benefits from increased load distribution and a shaped washer following the sheet profile. Selection should consider the roofing or cladding profile geometry, fixing position, fastener diameter, sealing requirement, substrate and environmental exposure. Explore JOPAL saddle washer solutions and related fastening systems for project-specific selection.
Products connected to this application.
What matters for this connection.
Fastener selection
Select the saddle washer to match the actual roofing or cladding profile and fixing position. Confirm profile geometry, washer dimensions, screw compatibility and the required EPDM sealing arrangement before specification.
Installation control
Orient the saddle to the sheet profile and install the screw perpendicular to the fixing surface. Seat the assembly with controlled compression so the washer is stable and the EPDM seals without excessive extrusion or sheet distortion.
Connection checks
Check profile fit, fixing location, local bearing and pull-over condition, sealing requirement, material compatibility and environmental exposure. Use the documented JOPAL saddle washer configuration for the selected profile.
Technical guidance for this application.
Use these engineering resources for the principles behind selection, installation and connection behaviour. Product suitability remains governed by the documented JOPAL product data.
Common questions for this application.
How do I select a saddle washer for a profiled roof or cladding sheet?
Match the saddle geometry to the actual sheet profile and intended fixing position, then confirm screw and sealing compatibility. Nominal screw diameter alone does not establish profile fit.
What is the difference between a saddle washer and a standard sealing washer?
A saddle washer provides a profile-matched seating surface on shaped roofing or cladding sheets. A standard flat sealing washer does not provide that profile-matching function.
Can one saddle washer fit different trapezoidal or corrugated profiles?
Not automatically. Crown width, radius, flank angle and fixing position can differ between profiles, so suitability should be checked against the actual sheet geometry.