Description
Expansion Strip Joint has been specifically designed for use as an expansion joint in industrial box gutter systems. Unlike traditional methods that require the ends of adjoining gutters to be boxed with a separate bridge flashing, the Expansion Strip Joint creates a flexible, watertight connection that allows unrestricted water flow while accommodating thermal expansion and contraction.
Manufactured from premium UV-resistant EPDM rubber with an aluminium support system, the Expansion Strip Joint is designed to withstand Australia’s harsh environmental conditions. Aquarius states the EPDM material is suitable for continuous temperatures up to 115°C and has demonstrated long-term resistance to UV degradation in Australian conditions beyond the product warranty period.
The system is suitable for aluminium, Colorbond®, Zincalume®, stainless steel, copper and zinc box gutters when installed in accordance with Aquarius installation instructions and using a neutral cure silicone sealant. Acetoxy cure silicone is not recommended.
Features
- Designed specifically for industrial box gutters
- Eliminates boxed gutter ends and bridge flashings
- Allows continuous water flow between adjoining gutters
- Accommodates thermal expansion and contraction
- Manufactured from premium EPDM rubber
- Excellent UV resistance for Australian conditions
- Continuous service temperature up to 115°C
- Suitable for harsh outdoor environments
- Fast and simple installation
- Designed for long service life
- Compatible with neutral cure silicone sealants
- Suitable for a wide range of roofing metals
Suitable For
- Industrial box gutters
- Commercial roofing
- Warehouse roofing
- Factory buildings
- Distribution centres
- Manufacturing facilities
- Large commercial buildings
- Aluminium gutters
- Colorbond® gutters
- Zincalume® gutters
- Stainless steel gutters
- Copper gutters
- Zinc gutters
Applications
- Industrial box gutter expansion joints
- Thermal movement control
- Commercial roof drainage systems
- Long run gutter installations
- High UV exposure environments
- Roof refurbishment projects
- New industrial roof construction
- Replacement of traditional boxed gutter expansion joints
Benefits
- Eliminates flooding caused by boxed gutter ends
- Allows unrestricted water flow across adjoining gutters
- Reduces fabrication time
- Simplifies installation
- Minimises maintenance
- Long-term UV stability
- Excellent weather resistance
- Proven performance in Australian conditions
Specifications
| Property | Specification |
|---|---|
| Product Type | Expansion Strip Joint |
| Material | EPDM Rubber |
| Application | Industrial Box Gutters |
| Recommended Sealant | Neutral Cure Silicone |
| Continuous Temperature Rating | 115°C |
| UV Resistance | Excellent |
| Installation | Riveted or self-drilling screws with silicone sealant |
Available Sizes
| Part Number | Width | Roll Length | Expansion Range |
|---|---|---|---|
| ESJ145-5 | 145mm | 5m | 145–175mm |
| ESJ200-5 | 200mm | 5m | 200–250mm |
Maximum Recommended Gutter Length Between Expansion Joints (Guide)
| Material | Thickness | Maximum Length |
|---|---|---|
| Aluminium | 0.90mm | 12m |
| Copper | 0.60mm | 9m |
| Copper | 0.80mm | 15m |
| Copper | 1.00mm | 26m |
| Steel (Colorbond® / Zincalume®) | 0.55mm | 20m |
| Steel | 0.75mm | 25m |
| Stainless Steel | 0.55mm | 20m |
| Zinc | 0.80mm | 10m |
Guide only.
Installation Notes
- Use neutral cure silicone only.
- Acetoxy cure silicone should not be used.
- Install using rivets or self-drilling screws as per installation instructions.
- Ensure fixings do not attach to the support tray.
- Remove metal swarf before final installation.
- Apply silicone to both gutter sections before final fixing.
Why Choose the Expansion Strip Joint?
Expansion Strip Joint provides a modern alternative to traditional boxed gutter expansion joints. By allowing water to flow uninterrupted while accommodating thermal movement, it reduces fabrication complexity, improves drainage performance and delivers long-term durability in Australia’s demanding climate.
