COMPOSITE DECKING MAINTENANCE & CARE

This is to be expected prior to natural weathering.
Once the material has been exposed to the elements for a few months, the colour should even out.

Darker areas may be exposed to less weathering Wet the darker areas with water to accelerate the weathering effect.
If the area suffers from constant shade, use a proprietary deck cleaner (treat as a heavily soiled area) to accelerate the process.

An un-even support structure, inadequate gapping, poor ventilation or clogged gaps between boards
Drainage slots may need to be cut into inadequately spaced boards. Install adequate ventilation gaps. For clogged gaps, use a flat tool to remove the debris.

Oil stains, barbecues and food etc.
Remove oil/grease stains with a household or automotive de-greasing product as soon as possible.

It could appear in poorly drained or heavily shaded areas and under deck furniture.
Use mould & mildew cleaner.

Low quality fasteners, ferrous objects such as garden furniture.
Use a soft brush or sponge on the marks.