Seal your ridge against Ember attack and Vermin!

Shadowline Ridgeseal is a versatile Zincalume flashing / seal product. This product is designed to help you meet your BAL level ( bushfire attack level ) requirements in Australian Standard: 3959 Construction of buildings in bushfire-prone areas 2009 (AS3959) and to keep vermin, leaf litter, dirt and rain out of your shed, garage, house or any other Corrugated steel roofed structure. Works with regular 16mm colorbond and zincalume corrugated and custom orb roofs. Can be used with 21mm corrugated roofs like Accent 21 and similar if you let us know by selecting the deeper 21 profile option when buying. 

Shadowline Ridgeseal has an innovative inverted profile design that allows the seal to sit under the leading edge of the ridge capping, placing it into shadow. This means the profile is not visible against the colour of the roof sheet, allowing you to seal effectively and aesthetically. This really helps with matching when your steel roofs’ Colorbond® colour is faded or discontinued.

Two versions of the Zincalume Shadowline Ridge seal are available on this page.
Standard Shadowline and Perforated Shadowline. Both can prevent vermin from coming into your shed.

The new and improved Perforated Vermin & Ember Seals have arrived.
These steel products help maintain your building’s BAL (bushfire attack level) ratings up to FL or Flame Zone while still allowing a degree of ventilation to your building’s envelope.

The ember seals will also exclude vermin like mice, rats, snakes, lizards, birds, bats, and more from your home or shed. This ventilated vermin seal helps you meet very high bushfire ratings while excluding embers and pests.

The new and improved design, manufactured from .55mm Zincalume, includes condensation ports punched to aid drainage and ventilation, plus pre-punched fixing or pilot holes. The perforations allow an approximate 1000mm2 of ventilated area per linear metre.

Find out how to install this product

Please do not short your order.
Minimum Order Quantities Apply.
Requests for small orders cannot be completed.

Shipping Notice
Shipping for these products is as follows.
NSW, VIC & QLD $60
SA & TAS $70
WA $100 and NT $125

They travel by TOLL Road and their on-forwarders or occasionally with Australia Post. Some locations may be deemed inaccessible by the freight network and will require collection from a regional depot.



See how the Shadowline Ridgeseal Mesh flashing seals the ridge yet doesnt require color matching as it sits in under the lip in the shadowline.

  • Can be used with most types of ridge cap
  • Aids in meeting BAL AS3959 design requirements
  • Suits any pitch roof
  • Can be retro fitted
  • Economical Zincalume finish
  • Available in various job lots
  • Prevents vermin from entering building
  • Comes in sheet width strips to aid installation
  • Is currently only for corro roofs and gable to gable ridge capping

Look how well this fits in and how good it looks on this example of an existing zinc roof.

Ridgeseal Shadowline suits both Custom orb and corrugated roofs. Designed for use on sheds, garages, barns, houses, mining accommodation, dongas, commercial and industrial buildings, warehouses etc. Shadowline Ridgeseal is available by the box or as job lots.


Orders placed incorrectly or being returned or exchanged have a 10% restocking charge. The cost of return freight is borne by the purchaser.

If replacements are being shipped a minimum re-delivery charge of $40.00 will apply to the replacement order plus any additional price difference between products will be added or subtracted accordingly.

Change of mind returns for Vermin seals of some varieties will be considered on a case-by-case basis and by prior arrangement. They attract a 20% restocking charge plus the actual cost of the original freight will be deducted. The cost of return freight is borne by the purchaser who is returning the products.

Unfortunately, our manufacturing arrangements mean we have to order in quantities of 18.28m or more. This is why the quantities are listed as such on the website. Don’t short your order, please.

Our Vermin & Emberseal manufacturer does not operate pickup or maintain any payment facilities at the factory. Orders online are delivered directly to you in most circumstances.

We have a wide range of retroseals suitable for installing on sheds that are already built. Vermaseal itself is for installation during the build.

Please refer to this cladding guide to help you order the right product for your shed.

Vermin seals are shipped via TOLL and sometimes Australia Post

Vermin and ember seal products– usually despatched within 3-5 working days. Orders placed incorrectly or being returned or exchanged have a 10% restocking charge. The cost of return freight is borne by the purchaser. A minimum re-delivery charge of $38.00 will apply to the replacement order plus any additional price difference between products.

It is always best to order slightly more than you need as the Minimum Order Quantity for vermin & ember seals is 18m. This min qty is not set by us, it is set by the factory. So if you don’t order enough then you would be up for another lot of freight and potentially the minimum order of 18m. You can always email or call if you need special assistance calculating how much vermin/ember seal you need.

If you’re not sure of your roof pitch, take a look at our handy calculator to work it out.

For how to install ShedBlog-supplied products go here –

It’s possible, it can be a little more fiddly, While many of the retroseals would suit, the product Combination Seal is the best for already insulated sheds and shed homes.

Send us your details at and we can arrange a sample. Please also let us know what you need to achieve just in case we can suggest a better product for the job.

Find our product install guides here. It’s usually due to an incorrect installation method or ordering the wrong profile. Please send a photo of the situation. Remember! Superseal installs at approximately a 30- 45 deg angle so please fix a receiver strip in place first, place the clip onto the strip and check fit that way. Instructions are either attached to the box or inside the box.

This depends on the profile of your shed cladding and the purpose (vermin and or embers) Have a look at our cladding guide which can help you to know what works for your shed.

Australia! Northern Rivers, NSW

Any questions? 
check out THE comprehensive FAQ page

or contact our customer service team now on 0456 729 904 
or email us at