Bushfire Attack Levels and garage doors
On land designated bushfire prone, Nillumbik Shire Council says a property is assessed under AS 3959 to set its Bushfire Attack Level, with BAL 12.5, for ember protection, as the minimum. The NSW Rural Fire Service describes BAL-12.5 as a risk mainly from embers, BAL-19 adds burning debris, BAL-29 adds heat, and at BAL-40 flames become possible.
That rating and the building surveyor set what a new garage door and its seals must meet on your block. Gliderol says a home's BAL decides whether flame retardant seals may be required, and that its own are deemed to comply with AS3959:2018.
Roller doors in Eltham
B&D describes a roller door as a metal curtain that rolls up like a carpet directly above the opening. Sealing one is a different job from sealing a panel door. Gliderol makes fit-to-door top seals for roller doors that nest inside the door as it opens and close gaps up to 50mm.
Some systems are not offered on roller doors at all. B&D says its BAL-Maze seal and door system, tested by the CSIRO to BAL-40, comes on its Panelift sectional doors and is not available on roller doors. It also says retrofitting seals to an existing door has not been tested by the CSIRO.
For everyday care, keep oil out of the guides. B&D's Roll-A-Door manual says grease or oil there clogs the Nylofelt running strips, and to wipe the guides with a cloth dampened with mineral turps or methylated spirits instead.
Garage door repair in Eltham
When a roller door gets hard to run, B&D's first checks are simple: the Nylofelt strips have not slipped and jammed, the door runs straight in its guides, and the guides are clean. If it is still heavy after that, B&D says the spring tension needs an experienced door technician, and Steel-Line warns never to tension a roller door yourself.
Around Eltham
Not every street is mapped
Most of Nillumbik is a Bushfire Prone Area, the council says, but some urban parts of Eltham, Diamond Creek and Greensborough are not mapped as one.
How to check yours
Nillumbik points residents to a VicPlan property report, which shows whether a property is in a Bushfire Prone Area.
Who draws the map
Nillumbik says it does not designate Bushfire Prone Areas itself. DEECA does.
What we would do
If you are replacing a roller door on a high-BAL block, get the BAL report out before you choose. Some sealing systems come only on sectional doors, so the rating can settle the door type before colour or style comes into it.