

| PVCU | Aluminium | Pultec | |
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| Wide Colour Range |
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| Needs no re-inforcement |
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| Environmentally friendly in manufacture |
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| Environmentally friendly in disposal |
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| Unaffected by salt/sea spray |
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| Good natural insulation |
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| Guarantee period (average no. of years) |
10
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10
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20
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| Life expectancy (average no. of years) |
15
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20
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50
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| Redecoration possible on site |
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| Stainable wood interior option |
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| Structurally sound for large glazing areas |
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| No expansion/contraction problems |
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| No yellowing in sunlight (UV) |
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| Includes no thermoplastics |
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| Includes no hardwood in installation |
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| Can be additionally insulated |
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| Damage can be repaired easily |
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| Good strength to weight ratio |
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| No distortion under extreme heat/fire |
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| Good rigidity under wind pressure |
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| Range of opening options |
High
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Medium
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High
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| Fly screen on open out windows |
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| Traditional French door ironmongery |
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