1. PVCu

* Impervious

* Hygienic

* Long Lasting

* Durable

* Self-extinguishing

* Smooth wipe-clean surafces

* Proven track record

* None Known

2. Timber

* Natural in appearance

* Cheap

* Needs regular treatment

* Difficult to clean

* Decays rapidly

* Porous

* Combustible

3. Polypropylene

* Light-weight

* Cheap

* Durable

* Rather soft and scratches easily which makes it prone to stain absorbtion

* Twists and warps with temperature fluctuations

* Brittle at low temperatures

* Looks cheap

* UV degredation

* Poor weathering resistance

* Flammable

* Difficult to bond and paint

* Oxidizes readily

4. Metals

(Box steel / Aluminium)

* Impervious

* Cheap

* Clean

* Cold and uninviting

* Reverberates noise - may distress animals

* Powder coating/paint finishes prone to staining

5. Perspex

* Cheap

* Hygienic

* Scratches easily

* Usually not UV stable

* Becomes brittle

* Discolours over time

6. Glass

Use only laminated or toughened

* Impervious

* Hygienic

* Easy to clean

* Long lasting

* Efficient ventilation essential to prevent heat build-up

7. Polycarbonate

Use only heat-reflective with a minimum of 3-walls (layers)

* UV stable

* Hygienic

* Durable

* Light-weight

* Transluscent

* Fairly expensive