ROOF ACCESSORIES
Complete waterproofing for your Onduline roof
Transform Your DIY Roof Project: Complete Waterproofing & Protection with ONDULINE® Accessories
When building or renovating a shed, garage, workshop, or garden room, installing high-quality Onduline corrugated sheets is only half the secret to a long-lasting roof. The true secret to preventing leaks, rot, and pest invasion lies in sealing the vulnerable edges, eaves, and wall junctions.
Onduline’s DIY-friendly accessories are lightweight, tough, and designed for easy installation using basic hand tools. Discover how these five essential accessories take your DIY Onduline roof waterproofing to the next level.
ONDULINE APRON FLASHING
Stop Leaks Where Your Roof Meets a Wall
- Dimensions: 930 mm (L) x 190 mm (H) x 80 mm (W)
- Weight: 0.35 kg
- Material: Tough Polypropylene
Whether you are building a lean-to side shelter or connecting a shed roof to a brick wall, the junction between a sloping roof and a vertical wall is the most common point for water leaks. ONDULINE® Apron Flashing creates a smooth, watertight seal that deflects rain away from wall abutments and upstands.
Key Benefits
- Superior Waterproofing: Prevents heavy rain and running water from seeping into wall joints and causing internal damp.
- Matched Corrugation Profile: Available in profiles tailored specifically for Onduline sheets to guarantee a snug, leak-proof seal.
- DIY Friendly: Lightweight and flexible - easy to trim to size and fasten with standard fixings.
- Durable Construction: Made from weather-resistant Polypropylene (PPE) built to withstand intense sun, frost, and wind.
ONDULINE EAVES VENTILATOR STRIP
Promote Essential Airflow While Keeping Pests Out
Maintain healthy airflow across the roof void while keeping out debris, birds, and insects.
Dimensions: 1000 mm (L) x 68 mm (H) x 20 mm (W)
Weight: 0.1 kg
Material: Tough, UV-resistant Polypropylene (PPE)
Condensation build-up inside a shed or garden room can lead to damp walls, mouldy tools, and rotting timber. The ONDULINE® Eaves Ventilator Strip provides continuous airflow through the eaves while keeping out birds, rodents, and large debris.
Key Benefits:
- Combats Internal Condensation: Keeps air circulating freely across the roof space to protect timber health.
- Integrated Pest Shield: Fine ventilator mesh deters birds, rodents, and leaf debris.
- Simple to Fix: Easily nailed into place along the eaves before sheets are laid.
- Durable: Made from tough Polypropylene (PPE) resistant to high temperatures and UV rays.
ONDULINE EAVES TRAY
Direct Rainwater Seamlessly into Your Gutters
- Dimensions: 1500 mm (L) × 55 mm (H) x 190 mm (W)
- Weight: 0.8 kg (+/-0.2 kg)
- Material: Robust UPVC / UV-resistant Polypropylene (PPE)
Water running off the lower edge of a roof can seep backward underneath the sheets, damaging your fascia boards and timber decking. ONDULINE® Eaves Trays (1500 mm × 190 mm) create a smooth, rigid drip edge that directs rainwater straight into your gutter.
Key Benefits:
- Prevents Fascia & Membrane Rot: Stops water from dripping onto underlying timber or underlays.
- Customisable Drip Edge: Pre-formed fold lines allow you to adjust the drip edge.
- Reduces Sheet Overhang: Allows you to install sheets with less overhang, preventing wind uplift and sheet sag.
- Heavy-Duty Construction: UV-resistant UPVC/PPE built to handle heavy rain and winter ice.
ONDULINE FOAM FILLERS
Block Draughts, Rain Ingress & Nesting Pests
Material: Cross-linked polyethylene
Available Profiles:
ONDULINE CLASSIC / EASYLINE (1056 mm x 40 mm)
ONDULINE EASYFIX / DURO SX 35 (1008 mm x 41 mm)
ONDULINE® FOAM FILLERS are available in two different profiles to match the profile range of ONDULINE® bitumen roof sheets and tiles and ONDUCLAIR® plastics.
ONDULINE® FOAM FILLERS should be used to seal the corrugations at eaves and ridges of the bitumen sheets and plastics ranges.
Key Benefits:
- Complete Gap Sealing: Fills every corrugation gap tightly at the ridge and eaves to stop wind-driven rain and snowmelt.
- Draught & Thermal Shield: Keeps cold winds from blowing through your building, making garden rooms and workshops warmer and easier to heat.
- Pest Barrier: Prevents birds, wasps, mice, and insects from nesting inside your roof structure.
- Easy Push-Fit Installation: Simply press the foam strips into place along the eaves or beneath the ridge caps prior to fixing.
ONDUTISS AIR MEMBRANES
Secondary Line of Defence Against Moisture & Condensation
Available Grammages: 100 gsm | 120 gsm | 140 gsm | 160 gsm
Suitable for both cold and warm roof applications, these membranes are crucial for comprehensive moisture management. Optimal Condensation Control & Waterproofing: It is best practice to install a breathable membrane, such as ONDUTISS AIR, beneath Onduline roofing sheets, tiles, and BARDOLINE roof shingles. This ensures robust protection against condensation build-up, contributing to maximum waterproofing performance and long-term roof health.
Key Benefits
- Allows moisture vapor to escape from the roof structure, preventing condensation build-up, mould, and rot
- Acts as a reliable secondary barrier against water penetration
- BBA Certified
Explore the full range of Onduline accessories
Enhance your roof’s performance, durability, and finish with genuine Onduline DIY accessories.