Type	Material Thickness	Weight (kg/m²)	Min Pitch	Lifespan (years)	Cost/m²
METAL
Colorbond® Steel	0.42-0.48mm	4.5-5.0	2°	30-50	$$
Zinc	0.7mm	5-7	3°	50-100	$$$$$
Copper	0.6-0.7mm	5-7	3°	70-100+	$$$$$
Aluminum	0.7mm	3-4	2°	40-50	$$$
TILES
Concrete	20mm	50-65	15°	40-50	$$
Terracotta	20mm	45-55	15°	50-100	$$$
Slate (Natural)	5-6mm	25-30	20°	80-100+	$$$$$
MEMBRANE
PVC	1.2-2.0mm	2-3	1°	20-30	$$$
TPO	1.2-2.0mm	2-3	1°	20-30	$$$
EPDM	1.2-2.0mm	2-3	1°	25-35	$$$
SPECIALTY
Solar Tiles	20mm	55-70	15°	25-30	$$$$$
Green Roof	System dependent	80-200+	1-5°	30-50	$$$$$

Performance Characteristics:

Thermal Properties:

• Metal: High heat reflection (light colors)
• Tiles: Good thermal mass
• Membrane: Variable (color dependent)
• Green Roof: Excellent insulation

Noise Performance:

• Metal: Poor (needs insulation)
• Tiles: Good
• Membrane: Good
• Green Roof: Excellent

Weather Resistance:

1. Wind Rating:

• Metal: Excellent
• Tiles: Good (if properly fixed)
• Membrane: Very Good
• Green Roof: Excellent

2. Hail Resistance:

• Metal: Moderate
• Tiles: Good
• Membrane: Fair
• Green Roof: Excellent

Installation Requirements:

Support Structure:

• Metal: Light frame
• Tiles: Heavy duty frame
• Membrane: Solid deck
• Green Roof: Engineered structure

Maintenance:

• Metal: Low (periodic inspection)
• Tiles: Moderate (check/replace broken)
• Membrane: Low (annual inspection)
• Green Roof: High (regular gardening)

Cost Guide:
$ = Basic ($50-100/m²)
$$ = Standard ($100-200/m²)
$$$ = Premium ($200-300/m²)
$$$$ = Luxury ($300-500/m²)
$$$$$ = Ultra Premium ($500+/m²)

Environmental Impact:

• Recyclability
• Solar reflectance
• Energy efficiency
• Carbon footprint

Note:

• Prices exclude installation
• Local building codes apply
• Climate considerations needed
• Warranty varies by manufacturer
• Additional costs for flashings/accessories