Keep the Pests Out: Recommended Vermin Seals for Best Sheds

Best Sheds is one of the most popular shed manufacturers in Australia, known for offering tough, affordable steel sheds with solid framing and flexible layouts. Whether you’ve just had your Best Shed installed or you’re mid-build, there’s one step that can dramatically improve the performance and longevity of your shed—vermin sealing.
Steel sheds, no matter how well constructed, can have small gaps along the base, roof, and corners. These openings might not seem like much, but they’re more than enough for pests, dust, wind, and water to get through. Thankfully, there’s a straightforward fix: adding purpose-built vermin seal products designed specifically for Australian sheds and cladding profiles.
Why You Need to Seal Your Shed
No matter how well your shed is built, there are always small gaps where unwanted visitors can sneak in. Rodents, snakes, insects, dust, water, and wind-blown leaves all find their way through roof ridges, wall bases, and corner joins. Over time, these intrusions can cause:
- Damage to equipment, insulation, and stored goods
- Messy cleanups from droppings, nests, or leaves
- Increased moisture and corrosion risks
- Uncomfortable working conditions from draughts and dust
That’s where vermin sealing comes in.
Sealing your shed properly is a simple but powerful upgrade—especially if you own a shed from Best Sheds, one of Australia’s most popular steel shed manufacturers. While Best Sheds provide a strong and reliable structure, adding the right vermin seals ensures complete protection from the environment.
Our Recommended Vermin Seals for Best Sheds
We’ve worked with hundreds of shed owners and builders across Australia and have found the following vermin seals to be the best match for Best Sheds steel cladding profiles. Each product is designed for specific parts of your shed and can be installed during or after construction.
Vermaseal (14B)
Perfect for: New shed builds (before construction begins)
Vermaseal is a pre-installed seal that’s designed to be laid down before the shed is built, directly on top of the slab edge. It forms a permanent barrier between the concrete and wall sheeting, blocking vermin, embers, water, and debris from entering through the wall base once the shed is installed.
- Best installed before wall sheets are fixed
- Ideal for new builds where you want a seamless, clean vermin seal
- Helps with BAL-rated (Bushfire Attack Level) compliance by preventing ember entry
- Works with Custom Orb and other common wall sheet profiles
- Compatible with most Best Sheds designs
If you’re planning a shed build, Vermaseal is a smart way to get ahead of pest-proofing before construction begins, saving time and sealing properly from day one.
Retroseal Domestic (Code 2)
Perfect for: Wall base sealing on domestic sheds
Retroseal Domestic is designed for use at the base of the shed wall sheets, preventing mice, rats, snakes, water, and wind-blown debris from getting underneath. It suits standard Custom Orb cladding and is ideal for backyard sheds, garages, and workshops.
- Suits Colorbond® and Zincalume®
- Fast, simple installation with silicone and fasteners
- Great for DIY or builder use
Steel Retroseal Rural (Code 6)
Perfect for: Larger rural or farm sheds with steel frames
This heavy-duty option accommodates bigger gaps and more exposed locations. It’s ideal for machinery sheds, hay storage, or any steel structure that faces harsh weather or vermin-prone areas.
- Accommodates wider gaps up to 25mm
- Heavy-gauge design for long-term durability
- Used extensively in agricultural settings
Retroseal Ridgeseal (Code 10)
Perfect for: Under the ridge capping on gable roofs
Don’t forget the roof! Ridgeseal closes off the gap under the ridge cap to prevent leaves, water, and pests from entering through the top of the shed.
- Easy to install during construction
- Pairs well with insulation batts or roofing blankets
- Reduces water and debris ingress
Retroseal Roofseal – Seal the Gap Behind the Gutter
Perfect for: Gaps between roof sheeting and gutters
Roofseal is a specialised vermin and ember seal designed to close off the open profiles behind gutters where corrugated roof sheeting overhangs the wall frame. This is a common entry point for pests, water, and even embers during bushfire season—and one that’s often overlooked.
- Best installed during shed construction, before gutters are attached
- Blocks vermin, debris, rain, and embers from entering through roof edge gaps
- Sits behind the gutter and under the roof sheeting for a neat, integrated fit
- Particularly useful in high-wind or BAL-rated (Bushfire Attack Level) areas
- Compatible with common cladding profiles like Custom Orb
If you’re sealing up a Best Shed properly from top to bottom, Roofseal is essential for protecting the roof edge and ensuring your structure is fire-safe and pest-resistant.
Shadowline Ridgeseal
Perfect for: Shadowline or architectural roofing profiles
For those with architectural or custom shed roof styles, Shadowline Ridgeseal is specially shaped to seal the ridge while maintaining a neat finish.
- Keeps insects, rain, and leaves out of the ridge area
- Clean, professional appearance
- Fits well in residential or designer shed builds
Corro Corners
Perfect for: Internal wall-to-wall joins
Internal corners are often overlooked but can be a direct path for vermin and weather to get in. Corro Corners are designed to close those internal joints where Custom Orb sheets meet.
- Completes the wall sealing system
- Enhances shed cleanliness and pest control
- Matches well with Retroseal Domestic and Houseseal
Don’t Forget the Fastener Kit
To make installation easier, you can order a fastener kit with your vermin seals. These kits include the recommended screws, rivets, and silicone sealant needed to do the job right the first time. Bundling your fasteners with your seal order ensures you’re not scrambling for the right bits later.
How to Install & Dealing with Corrugated Cladding
Be sure to refer to our Instructions Page for detailed installation guidelines, especially when dealing with corrugated cladding, custom profiles, or roof?pitch variances. This page covers step?by?step fit?ups, correct fixing methods, and tips for tight?profile sheets. This helps ensure proper sealing and avoids leaks or gaps caused by misalignment or incorrect fixing.
Want to See It First? Request a Sample
Not sure what seal is best for your shed profile? You can request a sample before placing your full order. This is a great way to check the fit and feel of the material before committing to a full shed sealing setup.
Need Help? Send Us Photos
We understand that not every shed is built the same—and sometimes it’s hard to know exactly which seal you need. If you’re unsure, we encourage you to email us photos of your shed, especially the:
- Base of the wall sheets
- Inside corners
- Ridge cap area
- Any gaps you’re trying to seal
Our team will assess your setup and recommend the right products for your situation. Just send your photos and details to admin@shedblog.com.au, and we’ll take care of the rest.
Final Thoughts
Best Sheds are strong—but sealing them makes them even better. By using the right vermin seals, you’ll extend the life of your shed, protect what’s inside, and avoid future pest problems.
With proven options like Vermaseal, Retroseal Domestic, Rural, Ridgeseal, Roofseal, Shadowline Ridgeseal, and Corro Corners, you can seal your shed from top to bottom—and even grab a fastener kit to make installation smooth.
Don’t wait until the critters move in. Seal it up properly today. Reach out with questions, request a sample, or send us photos and we’ll help you find the perfect vermin seal for your Best Shed.
























