Roofing Goats — Sydney roofing specialists
Roofing Goats Sydney project — completed Colorbond metal re-roof on a tiled home conversion
Homeowner's Guide

The Complete Guide to
Metal Re-Roofing in Sydney

Everything you need to know about COLORBOND metal re-roofing — profiles, colours, pitch, insulation, costs, and how to tell a quality job from one you'll regret.

Book Your Free InspectionExplore the Guide ↓
COLORBOND SpecialistsLicensed & Insured10-Year WarrantyFree Inspections

Why Sydney Homeowners Are Switching to Metal

Metal re-roofing has become the most popular upgrade for Sydney homes — and for good reason. Whether you're replacing ageing tiles or upgrading an old metal roof, here's why COLORBOND steel is the go-to choice.

40–60+ year lifespan

A quality COLORBOND metal roof outlasts most other components of your home. BlueScope backs their paint finish with a 36-year warranty.

Near-zero maintenance

No re-pointing, no painting, no replacing broken tiles. Periodic inspections and gutter cleans — that's it for decades.

Highest fire rating (BAL-FZ)

Metal is rated to BAL-FZ — the highest bushfire attack level. Essential in Sydney's bushfire-prone western and northern suburbs.

90% lighter than tiles

Metal weighs 4–6 kg/m² vs 40–55 kg/m² for tiles. Reduces structural load on older timber frames significantly.

Solar-ready

Solar panels clamp directly to metal ribs without penetrating the sheet. No drilling, no tile brackets, no leak risk.

Low-pitch capable

Concealed fix profiles go as low as 1° pitch. Tiles require minimum 15°. Ideal for modern skillion designs and additions.

22+ colour options

COLORBOND offers 22+ colours with Thermatech solar reflectance technology. 36-year paint warranty from BlueScope.

Strong resale impact

A new metal roof is consistently one of the highest-ROI home improvements in Sydney's property market.

Metal vs Tiles: The Honest Comparison

Most Sydney homes were built with concrete or terracotta tiles. They work — until they don't. Here's what you actually need to know when deciding what to replace them with.

FactorConcrete TileTerracotta TileCOLORBOND Metal
Lifespan30–40 years50–70 years40–60+ years
Weight (kg/m²)40–5530–404–6
MaintenanceHigh — repointing, replacementMedium — replacement tilesVery low — periodic check
Minimum pitch15°15°1° (concealed fix)
Fire resistanceBAL 40BAL 40BAL FZ (highest)
Rain noiseVery quietQuietModerate (Anticon reduces)
Insulation requirementStandard battsStandard battsAnticon or sarking recommended
Resale impactNeutralPositive (heritage)Strong positive (modern)
Cost tier$$$$$$$ – $$$ (profile dependent)
Structural loadHeavy — may need reinforcementHeavyVery light — reduces load
Colour fadeSignificant over timeModerateMinimal (36yr warranty)
Replacement piecesIncreasingly hard to matchLimited availabilityAlways available, exact match
Coastal suitabilityGoodGoodExcellent (SuperDura for severe)

Why most Sydney homeowners choose metal

  • Up to 90% lighter — dramatically reduces structural load on your frame
  • No cracking, re-pointing, or individual tile replacement ever
  • BAL-FZ compliant — highest bushfire rating available
  • Works on low-pitch roofs where tiles cannot be installed
  • Cleaner gutters — no granule shedding or moss growth
  • COLORBOND 36-year paint warranty from BlueScope

When tiles still make sense

Heritage overlays requiring a tile match, steeply pitched homes where tile aesthetics are dominant, and budget constraints where a tile restoration (re-pointing and coating) extends life by 15–20 years at lower cost than a full re-roof. We're honest about this — metal isn't always the answer.

What a New Roof Does to Your Property Value

A roof isn't just protection — it's one of the most visible and structurally significant components of your home. Here's what the data says about how roof condition affects property value in Sydney.

10–15%

Added market value

A new roof can add up to 10–15% to a home's market value in Sydney — one of the highest-return exterior improvements available.

TomKat Roofing / Sydney roofing industry data

Value loss warning

A poorly maintained roof can reduce a home's value by more than the cost of replacing it — making delay the most expensive option.

Strongguard.com.au roofing research

60–70%

Cost recovered at resale

New roof ROI is approximately 60–70% of cost recovered in direct resale value — plus indirect benefits like eliminating buyer negotiation leverage.

Remodeling Cost vs Value Report / HFS Financial

First thing buyers negotiate on

Roof condition is flagged by buyers as one of the first negotiation leverage points in a sale. A visibly ageing or damaged roof gives buyers justification to push the price down — often by more than the cost of the re-roof itself.

"When a buyer's building inspector flags the roof, it becomes a negotiation tool. The reduction they push for is almost always more than what the re-roof would have cost."

Buyers walk away from roof issues

Buyers who discover roof issues during a building inspection will typically negotiate a significant price reduction — or walk away entirely. In a competitive Sydney market, an ageing roof can be the difference between a sale and a lost buyer.

"A new roof removes the single biggest objection a building inspector can raise. It turns a potential negotiation point into a selling point."

The bottom line for Sydney homeowners

Whether you're planning to sell in the next few years or staying put for decades, a new metal roof pays for itself — either through direct value increase at sale, or through avoided maintenance, energy savings, and peace of mind over a 40–60 year lifespan.

Get a Free Roof AssessmentGet an Instant Estimate →

Understanding COLORBOND Steel

Not all metal roofing is created equal. COLORBOND steel by BlueScope is Australia's premium roofing steel — and there's a reason it dominates the market.

Steel Base

High-tensile steel core with Activate® technology — a zinc/aluminium alloy coating that provides superior corrosion resistance. The coating actively self-heals minor scratches at cut edges and screw points.

BMT (Base Metal Thickness)

Standard residential: 0.42mm BMT. Always check this — thinner steel (0.35mm) is used in budget products and doesn't perform the same.

Paint System

Multi-layer baked-on paint system with Thermatech® solar reflectance technology. Even dark colours reflect more infrared radiation than standard paint.

36-Year Warranty

BlueScope warrants the paint finish against peeling, flaking, and colour fade for 36 years. This is a manufacturer warranty — separate from workmanship.

ZINCALUME®

BlueScope's unpainted steel with a zinc/aluminium alloy coating. The same base metal as COLORBOND, without the colour paint layer — a natural metallic silver finish.

When to use it

Budget-conscious projects, sheds, carports, and where a raw metallic finish is preferred. Also used for flashings, gutters, and concealed areas.

Trade-offs

No colour options. Lower corrosion warranty than COLORBOND (25 years vs 36). Can be noisy without Anticon. Not recommended within 500m of salt water.

Cost

15–20% cheaper than COLORBOND. A legitimate option when budget is tight and aesthetics aren't the priority.

Product Grades

COLORBOND (standard)

Suitable for most Sydney suburbs. The default choice for residential re-roofing.

COLORBOND Ultra

Enhanced corrosion resistance for severe industrial and coastal environments.

SuperDura

Highest grade. For properties within 1km of breaking surf. Thicker coating layer.

ZINCALUME

Unpainted option. Same base steel, lower cost, natural metallic finish. 25-year warranty.

Beware of imitations. Some installers use cheap imported or unbranded steel that looks similar but doesn't carry BlueScope's warranty or coating technology. Always confirm your quote specifies genuine COLORBOND steel by BlueScope and check the warranty documentation at handover.

Metal Roof Profiles: Which One Is Right for Your Home?

The profile you choose affects performance, appearance, maintenance, and cost. Here's what you need to know about each option.

Custom Orb (Corrugated)

Exposed Fix$$

Australia's most recognised roof profile. Classic 76mm corrugation with excellent water shedding. The workhorse of residential roofing.

Min Pitch

5°

Coverage

762mm

Rib Height

16mm

Coastal

Yes (coastal grade available)

Most affordable metal profile
Excellent water shedding on adequate pitch
Suits heritage and classic contemporary aesthetics
Coastal grade available in SuperDura
Exposed fasteners require long-term maintenance
Not suitable below 5° pitch
Screw washer deterioration over 15–20 years

Best for: Standard residential re-roofs where budget matters, heritage homes, and roofs with 5°+ pitch.

Trimdek

Exposed Fix$$

Modern trapezoidal profile with clean lines and superior spanning ability. Wide coverage per sheet reduces installation time.

Min Pitch

2°

Coverage

762mm

Rib Height

30mm

Coastal

Yes

Clean modern appearance
Wide coverage reduces install time and cost
Low-pitch capable down to 2°
Strong water-shedding performance
Exposed fasteners require long-term maintenance
Less traditional aesthetic than corrugated

Best for: Modern homes, skillion additions, and applications needing wide coverage with low-pitch capability.

Klip-Lok 700

Concealed Fix$$$

Premium concealed fix profile with zero exposed fasteners. Floating clip system allows thermal movement — the gold standard for residential re-roofing.

Min Pitch

1°

Coverage

700mm

Rib Height

46mm

Coastal

Yes

Zero exposed fasteners — no screw leak risk
Handles thermal expansion via floating clips
Minimum 1° pitch — ideal for nearly flat roofs
Most popular concealed fix in residential
Higher cost than exposed fix profiles (+10%)
Requires trained installer for clip system
Cannot be walked on easily after installation

Best for: Low-pitch roofs, long roof runs, and homeowners who want the best waterproofing with zero exposed fastener risk.

Standing Seam / Longline

Standing Seam$$$$

Vertical seam panels with mechanically folded or snapped seams. The premium architectural option — clean, bold, and statement-making.

Min Pitch

1.5°–3°

Coverage

400–550mm typical

Rib Height

25–38mm

Coastal

Yes

Truly zero exposed fixings anywhere
Premium architectural aesthetic
Handles thermal expansion naturally
Most common on architect-designed homes
Highest price tier of all profiles
Requires specialist installation
Longer lead times for custom panels

Best for: Contemporary and architect-designed homes where aesthetics are paramount.

Longline 305

Concealed Fix$$$

Wide pan concealed fix with very low pitch capability. Clean, flat appearance from street level — popular on modern knockdown-rebuilds.

Min Pitch

1°

Coverage

305mm

Rib Height

38mm

Coastal

Yes

Clean flat appearance from street level
Very low pitch capable (1°)
Popular on modern knockdown-rebuilds
Architectural finish at lower cost than standing seam
Narrower coverage — more panels per roof area
Specialist installation required

Best for: Modern builds wanting a flat, contemporary concealed fix look without full standing seam pricing.

COLORBOND Colour Guide

Choosing the right colour matters more than you'd think. It affects street presence, heat performance, and how the roof complements your home's brickwork, render, and landscaping.

POPULAR

Surfmist

Sydney's #1 — clean, bright, maximum heat reflection

Classic Cream

Warm traditional tone, pairs with sandstone

Dover White

Soft neutral, works with most brick colours

Paperbark

Warm natural tone, popular in bushland

Dune

Earthy mid-tone, versatile

Headland

Warm sandy tone for coastal and rural

POPULAR

Shale Grey

Classic neutral grey — suits almost any home

Windspray

Cool blue-grey, coastal aesthetic

Pale Eucalypt

Soft green, blends with bushland

POPULAR

Woodland Grey

Rich dark green-grey — modern favourite

POPULAR

Basalt

Deep charcoal with warmth — strong street presence

POPULAR

Monument

Sydney's top dark choice — sleek and contemporary

Ironstone

Deep brown-black, heritage complement

POPULAR

Night Sky

Near-black — dramatic, statement-making

Deep Ocean

Dark navy — sophisticated and bold

Cottage Green

Traditional dark green, heritage homes

Manor Red

Classic Australian red — farmhouse and rural

Jasper

Rich terracotta tone, warm character

Light Colours

Maximum heat reflectance. Best for Western Sydney, north-facing roofs, and properties without good ceiling insulation. Surfmist is the standout performer.

Medium Tones

Good balance of aesthetics and performance. Shale Grey is the universal safe choice — it works with virtually any brick, render, or cladding combination.

Dark Colours

Maximum street presence. Monument, Basalt, and Night Sky dominate modern builds. With Thermatech® and proper insulation, heat gain is manageable even in dark colours.

Roof Pitch: What It Means & Why It Matters

Pitch is the angle of your roof. It determines which products can legally and safely be installed, how water drains, and what your re-roof will cost. Most homeowners don't know their pitch — and most problems start here.

1°Nearly flat
3°Low skillion
5°Min corrugated
10°Low residential
15°Common suburban
22.5°Standard hip
30°+Steep/heritage
ProfileMin Pitch (Exposed)Min Pitch (Concealed)Notes
Custom Orb (Corrugated)5°N/AMost common residential profile
Trimdek2°N/AExposed fix only
Klip-Lok 700N/A1°Concealed fix only
Standing SeamN/A1.5°Premium tier
Longline 305N/A1°Architectural

Why low pitch fails

On low-pitch roofs, water doesn't drain fast enough. Capillary action draws water backwards up lap joints. High wind pushes rain uphill under overlaps. Ponding water accelerates screw corrosion on exposed fix profiles. Debris and leaves block drainage paths. This is why concealed fix is essential below 5° — there are no exposed screws for water to exploit.

Common Sydney Pitch Scenarios

Federation / Edwardian homes
Typical pitch: 25–35°

Most profiles work. Custom Orb suits heritage aesthetic.

1960s–80s brick veneer
Typical pitch: 15–22°

Custom Orb or Trimdek. Concealed fix upgrade available.

Skillion additions
Typical pitch: 3–7°

Concealed fix required. Klip-Lok preferred.

Modern knockdown-rebuilds
Typical pitch: Mixed

Often low-pitch sections. Engineer's advice on anything under 3°.

Verandah / pergola
Typical pitch: 2–5°

Klip-Lok or Trimdek. Never exposed fix below 5°.

Insulation: Sarking & Anticon Explained

What goes under your metal roof is just as important as the metal itself. A re-roof is your only opportunity to install proper insulation — once the sheets are on, you can't go back.

Sarking

A reflective foil membrane installed directly under the metal sheeting. Acts as a secondary weather barrier, reflects radiant heat, and prevents condensation forming on the underside of the metal.

Reflects up to 97% of radiant heat
Prevents condensation dripping onto ceilings
Secondary barrier against wind-driven rain
Required by many Sydney councils
Must be vapour-permeable — NOT builders plastic

Anticon

A glasswool insulation blanket with a foil facing, pre-laminated and installed in direct contact with the underside of metal sheeting. The premium choice for metal re-roofing.

Combines insulation + condensation control in one product
Dramatically reduces rain noise on metal
Prevents condensation forming on the metal underside
Available in different R-values for thermal performance
Our recommended product for every metal re-roof

Do not skip insulation to save money. A re-roof is the only time you can install sarking or Anticon without ripping the roof off again. The cost difference is minor relative to the total job, but the benefits — noise reduction, thermal performance, condensation prevention — last the entire life of the roof.

What Separates a Quality Metal Re-Roof from a Problem One

The difference between a roof that lasts 50 years and one that leaks within 5 is in the details. Here's what to look for — and what to watch out for — in every quote and installation.

What good looks like

Custom-fabricated flashings at every penetration
Step flashings at all wall junctions
Valley iron correctly lapped, sealed, and new

Red flags

Reused old valley iron
Silicone-only sealing at penetrations
No step flashings installed

The Metal Re-Roofing Process: Step by Step

A quality re-roof follows a defined process. Here's exactly what happens from your first call to final handover.

1

Free Roof Inspection

We inspect substrate, battens, flashings, sarking, and pitch. Photo report provided on the day.

2

Scope & Measure

Full roof measurement, provisional batten/timber quantities, penetration count, gutter assessment.

3

Profile & Colour Selection

We recommend the right profile for your pitch and aesthetic. Colour samples available.

4

Written Quote

Itemised fixed-price quote. HBCF insurance details included where required.

5

Scheduling

Job scheduled, materials ordered, scaffold booked if required.

6

Old Roof Strip

Existing roof and battens removed, substrate fully exposed for inspection.

7

Substrate Repairs

Rotten timber, damaged rafters, or rusted fixings replaced before anything goes on.

8

Sarking / Anticon Install

Correct membrane installed across full roof area before sheeting.

9

New Roof Installation

Profile fixed to correct screw pattern, lines straight, expansion allowance correct.

10

Flashings, Ridges & Cappings

All valleys, ridges, barge ends, wall junctions, and penetrations fully flashed.

11

Gutters & Downpipes

Gutters re-hung to correct fall, downpipes connected, overflow points checked.

12

Final Inspection & Handover

Site cleaned, photos taken, written warranty issued, HBCF certificate provided.

Metal Re-Roofing Costs in Sydney (2025)

Re-roofing costs depend on many factors. Here's what drives the price — and typical ranges for Sydney residential projects.

Tile → Metal

Strip tiles, new battens, sarking, COLORBOND

~$190/m²

Typical total: $15,000 – $45,000+

Metal → Metal

Strip old metal, new battens, sarking, COLORBOND

~$180/m²

Typical total: $12,000 – $35,000+

Klip-Lok Upgrade

Concealed fix premium over exposed fix

+10%

Zero exposed fastener risk, lower maintenance

What affects the final price

Roof size and complexity

Price per m² drops on large simple roofs, rises on complex hip/valley/dormer layouts. A gable roof is faster and cheaper than a multi-hip with valleys and dormers.

Profile choice

Custom Orb is most affordable (~$190/m² tile-to-metal), Klip-Lok adds ~10%, standing seam is premium tier. The profile directly affects material and labour cost.

Existing roof material

Tile-to-metal (~$190/m²) costs more than metal-to-metal (~$180/m²) due to additional strip, weight handling, and disposal costs.

Pitch and access

Steep roofs (25°+) require more safety equipment and slower installation. Scaffold is mandatory on most 2-storey or steep-pitch jobs ($2,000–$5,000).

Batten and timber condition

Provisional rates in the quote cover batten replacement. Final cost depends on what's found once the old roof is stripped — rotten battens are only visible after removal.

Sarking and Anticon

Adds cost but pays back in energy savings, condensation prevention, and noise reduction. This is your only chance to install it.

Gutter replacement

Often done at the same time. Combining with re-roof saves on scaffold costs. Box, fascia, and quad gutters all have different price points.

Penetrations count

Each skylight, solar array, whirlybird, and pipe boot adds time and flashing material. More penetrations = higher cost.

Coastal and BAL upgrades

Class 5 fixings, SuperDura steel, and ember-seal products add cost in relevant zones. Not optional if you're in a coastal or bushfire area.

HBCF insurance

Required on NSW contracts over $20,000. A legitimate cost. If a company avoids it, ask why.

Get a ballpark estimate now

Our free roof calculator gives you a realistic price range in under 3 minutes. Pick your roof type, size, and profile — get an instant estimate you can use to plan your budget.

Try the Calculator →

Then lock in your exact price

A free on-site inspection refines your estimate — we measure the actual area, count penetrations, check batten condition, and assess access. You'll get a fixed-price quote and a photo report, no obligation.

Book Your Free Inspection

Sydney booking windows are 3–6 weeks out

Re-roofing demand peaks from September to March, and material prices are reviewed quarterly by BlueScope. Locking in a quote now holds your price for 30 days — even if the next price review lands in between.

Coastal & Bushfire Zone Requirements

Sydney has significant coastal and bushfire exposure. If your property is in either zone, your metal roof specification must match — this isn't optional.

Coastal Zones

Properties within 1km of breaking surf are in a severe marine environment. Salt-laden air accelerates corrosion on standard steel and fixings.

Standard COLORBOND: suitable for general coastal areas (1–10km from coast)
SuperDura: required within 1km of breaking surf — thicker coating, higher corrosion resistance
Fixings must be Class 5 or stainless steel — standard screws will corrode
All flashings must be upgraded to match — one weak point compromises the entire roof
Relevant suburbs: Cronulla, Maroubra, Coogee, Dee Why, Manly, Bondi, all Northern Beaches

Bushfire Zones (BAL)

Properties with a BAL (Bushfire Attack Level) rating above BAL-LOW have specific roofing requirements under AS 3959.

Metal roofing is rated to BAL-FZ (the highest level) — the best-performing material
BAL 12.5 – BAL 29: standard COLORBOND with ember-seal at all openings
BAL 40: all gaps sealed, no combustible materials under roof, ember guards on vents
BAL-FZ: full ember protection, non-combustible construction throughout, specialist install
Relevant areas: Hills District, Northern Beaches bushland, Blue Mountains fringe, Sutherland Shire

Frequently Asked Questions

Real questions from Sydney homeowners about metal re-roofing — answered by our roofing specialists.

A quality metal re-roof using COLORBOND steel typically lasts 40–60+ years. BlueScope backs their paint finish with a 36-year warranty. With correct installation, the roof will outlast most other components of your home.

Ready to Get Your Metal Re-Roof Sorted?

Whether you're replacing tiles, upgrading old metal, or planning a new build — it starts with a free on-site inspection. We'll assess your roof, explain your options honestly, and provide a written quote with no obligation.

Call us

(02) 5565 2110

Email us

info@roofinggoats.com.au

Visit us

35 Seaview St, Cronulla NSW 2230

Get Your Free InspectionGet an Instant Estimate — Under 3 Minutes
5.0

Our Google Reviews

Don't just take our word for it — here's what Sydney homeowners say about working with the Roofing Goats team.

Read all reviews on Google
RT

Rena Tellis

2 weeks ago

“We engaged Roofing Goats to investigate persistent water ingress from our metal roof after a previous roofer had been unable to identify the source of the leak. The team quickly located the problem and provided a thorough explanation of what was causing it. Throughout the process, Roofing Goats were outstanding. Their communication was prompt, they arrived on time, were friendly, professional, and generous with their knowledge. They were honest about the scope of their expertise as roofers and did not try to push work that was outside their trade. We couldn't fault them in any way and would have no hesitation recommending Roofing Goats to anyone looking for a reliable, honest, and professional roofing company.”
BP

Brandon Phung

6 weeks ago

“Thank you Jesse and his team for fixing and transforming our roof! From the initial phone call, consult and the finished job, my wife and I are extremely thankful for how easy the entire process was. We are really happy with the final result! I highly recommend Jesse and his team to anyone looking for a reliable, honest and skilled roofing company. Thanks again for the fantastic work!”
KG

Kel G

5 weeks ago

“Our family home at Mount Pritchard suffered major issues from a storm. We contacted Roofing Goats and organised for them to come do a quote. Jesse and Shea were very professional and dealing with them was a breeze. The weather was not cooperating but I was kept up to date on everything whilst waiting for the rain to stop. The guys took one day to smash it out. The roofing looks very sleek and matches the rest of the house perfectly. They even tweeked the flashing to fit the odd shape of where some roof joined up. It looks so bloody good. Can't thank them enough. Would 100% recommend Roofing Goats.”
JS

Janice Simpson

1 month ago

“From quote to completion, the whole process was smooth and stress-free. The crew were polite, punctual, and left the site spotless. Couldn't be happier with my new Colorbond roof.”
JS

Jackson S.

2 months ago

“Awesome people to deal with. Kept me in the loop the whole project. Could not recommend this company enough.”
TK

Tracie K.

2 months ago

“Responsive and professional service. They replaced my old tiled roof for long-lasting Colorbond steel. What a difference — the house looks completely transformed.”
LR

Lisa Reynolds

3 months ago

“We were really happy with the care and time taken to get our job right. Your work is very thorough. What was also fantastic was the clean up afterwards — nice to see!”
RH

Ron H.

3 months ago

“The team were outstanding to work with — respectful, pleasant, and great fun to have around. Excellent work. We're very happy with the finished result.”
PP

Pauline Peirce

4 months ago

“The gutter guards and downpipes work well and the job was well done. Thank you.”
JE

Jenny

4 months ago

“Grateful for the easy communication and roof changed in 2.5 days. Wonderful work.”
SG

Shirley Gorton

5 months ago

“Thank you for the work done on the house, it looks fantastic!”
Write us a review
    CALL NOW — (02) 5565 2110