The Renusol Storm Washer for Corrugated Sheet (Part No: REN-900220, R24/37) is a profile-matched sealing washer designed to sit beneath a Renusol solar fastener on corrugated roof sheeting, ensuring the fixing point follows the sheet's curved profile while maintaining a weathertight seal. Manufactured from aluminium with a pre-assembled EPDM seal, the washer is shaped to a 24mm radius to match common corrugated roof profiles.
This storm washer is used together with a compatible Renusol solar fastener (part numbers 900181–900192), completing a weathertight fixing point that transfers module and wind/snow loads safely into the roof substructure without compromising the sheet's water tightness.
Aluminium + EPDM
Material
Compatibility Warning
Renusol mounting equipment must not be used with mounting equipment from other suppliers. Doing so would inevitably void the warranty of the mounting system.
Match Washer to Roof Profile
This washer is shaped for a 24mm rib radius corrugated profile. Renusol also offers R32/51 and R48/62 variants for other corrugated roof profiles — always match the washer to the specific roof sheeting profile before ordering.
Key Features
Profile-Matched to Corrugated Sheet
Shaped to a 24mm radius to follow the curve of common corrugated roof sheeting profiles for a snug, weathertight fit.
Pre-Assembled EPDM Seal
The EPDM seal is pre-fitted to the aluminium body, ready to install without assembling separate sealing components.
Aluminium Construction
Manufactured from aluminium for long-term corrosion resistance in exposed outdoor roof conditions.
Maintains Roof Water Tightness
Works with the solar fastener to transfer structural loads into the substructure while keeping the roof sheet's weatherproofing intact.
TÜV and MCS Certified
Certified to TÜV ID 1111212485 and MCS012 IK0197/04, supporting MCS-compliant UK solar PV installations.
Compact, Easy-to-Stock Component
A small, lightweight washer that's simple to keep as spare stock alongside Renusol solar fastener orders.
Technical Specifications
General
Product Name
Storm washer for corrugated sheet R24/37
Roof Type
Corrugated sheet metal roof
Construction
Dimensions
45 × 40 × 12mm
Profile Specification
Port (Opening) Diameter
7.3mm
Certification
MCS Certification
MCS012 IK0197/04
Compatible Components
Solar Fasteners
REN-900181 – REN-900192 range
Frequently Asked Questions
What roof profile is this storm washer designed for?
This washer is shaped to a 24mm rib radius, suited to common corrugated roof sheeting profiles (R24/37). Other rib radii require the R32/51 or R48/62 variants.
What is a storm washer used for?
It sits beneath a Renusol solar fastener on corrugated roof sheeting, allowing the fixing to follow the sheet's curved profile while maintaining a weathertight seal.
Does the washer come with a seal fitted?
Yes. The EPDM seal is pre-assembled onto the aluminium washer body, ready to install.
What solar fasteners is this washer compatible with?
It is compatible with the Renusol solar fastener range (900181–900192) used to anchor mounting equipment into timber or steel substructure.
Is this washer certified for UK solar installations?
Yes. It is certified to TÜV ID 1111212485 and MCS012 IK0197/04, supporting MCS-compliant installations.