Right here is where you’ll find a complete breakdown of the basics of roof battens. And that’s not all — we’ll also explain why they are so important, explore different options, give you top tips for installing roof battens, and more!
Learn everything you need to know about roof battens right here.
What Are Roof Battens?
Roof battens are an essential in roofing applications. They’re slender strips of material, typically made of metal or wood, that get fixed horizontally to roof trusses or roof rafters. They hold roofs together from within, sort of like a skeleton. They support all kinds of roofing materials, like tiles, metal sheets, and polycarbonate panels, making them suited to lots of roof designs.
How Do Roof Battens Work?
Roof battens get fixed on top of the roof truss system, serving as a horizontal support layer. It basically forms the base that roofing materials get attached to. Roof battens ensure structural integrity and stability by evenly transferring the weight of roof coverings, like tiles or metal sheets. They provide consistent spacing and alignment — a must-have for proper and safe installation.
Also, roof battens create a small gap that typically sits between the roof frame and roof material, serving as ventilation. This helps stop heat escaping, making homes more energy efficient and better insulated.
The Importance of Roof Battens
Without roof battens, there would be no roofs!
They are absolutely essential for all roofing builds. But what else do they offer besides structural integrity? Find out below what makes roof battens so important:
- Prevent Roof Failure: Because they distribute the load of roofing materials, battens prevent stress on individual structural elements within roofing construction, which works to prevent roof failure overtime.
- Meets Building Code Requirements: In order to build a roof by the books, you’ve got to make sure battens are properly in place and tick off all the important boxes, like structural safety, especially with all the harsh Aussie weather.
- Ensures Roof Materials Are Properly Supported: The last thing anyone wants after finishing up a whole roof project is tiles falling off or wonky metal sheets.
- Helps Proper Ventilation: Battens create just enough spacing between layers of roofing that helps proper airflow, working, in turn, to prevent trapped moisture and improve overall insulation.
Types of Roof Battens & Their Uses
There are two types of roof battens that you can choose: steel and timber. Each offers its own benefits and is suited to different applications, all the while supporting roofing, ensuring ventilation, and helping your roof meet all the essential requirements. Let’s explore the two options…
Steel Roof Battens
Packing all the strength, long-term durability, and weather resistance, steel battens shie as the most reliable and consistent option. They come in various steel thickness options, suited to different structural loads and roofing types, like metal roofing and tiled roofing.
The best bit about steel battens is the fact you don’t need to treat them — they’re rot-resistant, fire-retardant, and termite-resistant.
For modern and complex roofing projects, steel battens are a go-to solution.
Timber Roof Battens
Timber battens are a traditional option that’s been tried and tested for centuries. You’ll often find that timber battens are made of softer woods, like pine. Why? Because it makes them much easier to cut to size and install. Because they are made of wood, these battens must be finished with treated timber to resist termites, moisture retention, and fungal decay.
It’s a much more economical alternative to metal roof battens , and suits smaller building projects in low risk areas with stable weather just fine.
Installing Roof Battens: 6 Must-Know Tips
These must-know tips will help you successfully install roof battens:
- Always double-check the maximum span between battens.
- Follow the manufacturer’s specifications, including any specific tie-downs or fixings required — after all, they know best!
- Assess wind loadings in your area to determine what spacing, thickness, and anchoring are most appropriate for your project.
- Make sure battens meet the minimum fixing size required for a secured installation and longevity.
- Proper storage is an absolute must before installation – especially for timber battens. This will prevent damage, like warping, and ensure your battens are in tip-top shape and ready to be used.
- Ensure additional fall protection is in place when installing battens — this will make sure you comply with building code requirements while keeping everyone safe.
Strengthen & Secure Your Roof With the Right Final Touches
Once you’ve got a strong structure within your roof, you’ll need to finish it off with some final touches to ensure it’s fortified from the outside, too.
Special roof coatings, like UV-resistance and waterproofing, will give your roof an extra layer of protection so it can handle whatever harsh Aussie weather comes its way.
Sealing corners and roof joints with good quality flashing is essential. We’ve got a solid lineup of premium, lead-free flashing suited to all kinds of roofing finishes and applications.
For tricky and irregular shapes, like chimneys and junctions, Wakaflex Lead-Free Flashing and Smartform Flexible Flashing Tape take the lead. And for extra strength and rigidity Dakaflash Flashing is a top choice.
Frequently Asked Questions
Should roof battens be nailed or screwed into place?
That all depends on the type of batten you go for. Timber battens will work best with nails whereas steel battens are well suited to self-drilling screws.
Aside from considering the kind of battens you’re using, you should also consider local weather and the construction of your roof. If you live in a particularly windy area or plan on installing heavier roofing materials, you’ll need something stronger, like screws, to keep your roof battens in place.
How far apart should roof battens be?
Batten spacing all depends on the kind of roof you’re installing. For a standard roof made of tile, around 320mm to 345mm spacing (centre-to-centre) is common. Metal roofing needs a little more spacing, typically 900mm to 1200mm — based on steel thickness, roof pitch, and wind loading. Polycarbonate roofs usually need between 600mm and 800mm.
When you’re mapping out the spacing of your roof, always double check the manufacturer’s specifications, your local building code requirements, and max span limits.
What’s the difference between roof and ceiling battens?
Roof battens support roofing materials and get fixed horizontally to roof trusses or rafters. Ceiling battens, on the other hand, are installed beneath trusses, and used to support the ceiling lining, like plasterboard.