CeaseFire vs FireSark: What Perth Buyers Should Compare First

CeaseFire and FireSark both sit in the fire-focused membrane category, but they are built for different wall and roof behaviours. Trade Select CeaseFire is a non-combustible breathable membrane. FireSark is a reflective fire-rated sarking with vapour-barrier behaviour. That means the main decision is not which one sounds more heavy-duty. It is whether the assembly needs breathability or a reflective vapour barrier.

That difference is important on Perth and WA projects where BAL exposure, facade requirements, condensation management, and cladding details all intersect. These products can both be correct, but not for the same reason.

What Each Product Is

Trade Select CeaseFire is used where the wall or roof assembly needs a non-combustible membrane, Class 4 vapour permeability, weather protection, and air-barrier support in one layer. It is usually tied to higher-spec external wall work, including facade and fire-resisting construction details.

FireSark by Trade Select is an extra-heavy-duty reflective sarking for roof and wall systems where fire performance, reflective foil behaviour, and vapour-barrier performance need to work together. It is not the same thing as a breathable fire wrap.

When CeaseFire Makes More Sense

• the wall needs non-combustibility and vapour permeability together
• the project involves facade, multi-residential, or fire-resisting external wall construction
• the assembly still needs to dry outward
• the specification is closer to a breathable membrane decision than a reflective sarking decision

CeaseFire is usually the better fit when the wall design is asking for fire performance without giving up condensation management. That is why it often makes more sense in external wall systems than in a simple reflective sarking comparison.

When FireSark Makes More Sense

• the build-up calls for reflective fire-rated sarking
• the membrane is meant to behave as a vapour barrier and water barrier
• the project needs ember resistance and reflective foil performance in one wrap
• the roof or wall detail is specification-led rather than a general breathable-wrap choice

FireSark is usually the stronger match where the membrane role is closer to reflective sarking than breathable facade wrap. It suits assemblies that were designed around that vapour-barrier behaviour from the start.

When Neither One Should Be Used As A Shortcut

Do not treat these products as interchangeable just because both sit in the fire-performance conversation. A wall that needs to dry outward can be harmed by choosing the wrong vapour behaviour. A roof or wall detail that calls for reflective fire sarking can also be underspecified if you swap in a breathable membrane without checking the assembly.

It is also worth separating wall-wrap decisions from bulk insulation decisions. CeaseFire and FireSark are membrane layers, not substitutes for the batt, board, or blanket that provides the main insulation value.

What To Check Before Buying

• Confirm whether the membrane needs to be breathable or vapour barrier.
• Review BAL, facade, and fire-resisting construction notes.
• Check whether the detail is a wall-wrap application, a roof-sarking application, or both.
• Allow for roll coverage, overlaps, penetrations, and wastage before ordering.
• Keep the product choice tied to the assembly specification, not just the fire label.

How The Main Options Compare

If the project needs a non-combustible breathable membrane, Trade Select CeaseFire is the better place to start. If the project needs reflective fire-rated sarking with vapour-barrier behaviour, FireSark by Trade Select is the better starting point.

If you still need the category sorted first, the site’s fire-rated breathable wall wrap guide helps on the breathable side, while the fire-rated sarking guide helps on the reflective sarking side. The wider fire insulation collection is the best place to compare the broader range once the membrane behaviour is clear.

Before You Order

CeaseFire vs FireSark is not a simple brand comparison. CeaseFire usually fits when the assembly needs non-combustibility and outward drying. FireSark usually fits when the assembly needs reflective fire-rated sarking with vapour-barrier behaviour.

Start with the Trade Select CeaseFire product page and the FireSark product page, then narrow the final choice against the build-up rather than the label alone.