Decking Cleaner

Why use a Decking Cleaner?

Maintaining the appearance of garden decking is important for several good reasons. Using a decking cleaner removes and keeps decked areas free from moss, mould and algae, therefore preventing decking boards from becoming slippery and dangerous. Decking cleaners also help to maintain the look and protective properties of decking finishes such as decking oils, decking stains and decking paints.

Many decking cleaners can be used as a pre-treatment to remove surface dirt, debris, mould, algae, fungi and other surface contaminates prior to applying a decking finish.

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Using a decking cleaner on mould and algae can prevent slippery and dangerous decking boards

Why should decking be cleaned on a regular basis?

  • To keep wooden decking looking its best for longer
  • To prevent the onset of mould algae and fungi
  • Reduce the chances of decking becoming slippery and dangerous
  • Helps to maintain the look and performance of decking finishes
  • Helps to prevent wood rot and decay

Which is the Best Decking Cleaner

This depends on the project to hand. If it’s simply a case of cleaning dirt, grease, mould and algae from an existing decking finish then the following decking cleaners are perfect for the job. If the decking has been neglected for some time, has worn back to bare wood and is in need of a major overhaul, then a decking restorer may be required.

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osmo-wood-reviver-gel

A full range of decking cleaners and restorers here.

How to Clean Decking

For the best results, knowing how to clean decking properly is essential. The following steps can be used for both softwood and hardwood decking that has been treated with a decking oil, stain or other decking finish.

  1. Remove garden furniture, pots, plants and other items prior to cleaning
  2. Sweep decking with a stiff brush or broom to remove surface dirt & debris
  3. Apply the decking cleaner as directed on the container
  4. Allow to dry fully
  5. For heavily soiled decking, Sweep again and re-apply a second application of decking cleaner

Using a decking cleaner as a pre-treatment

This process is ideal for old or untreated soft and hardwood decking that has turned grey / silver over time as a result of weathering and UV damage.

  1. Remove garden furniture, pots, plants and other items prior to cleaning
  2. Remove surface mould, algae or fungi with a paint scraper, stiff broom or brush
  3. Sweep decking with a stiff brush or broom to remove all surface debris
  4. Clean the deck with the decking cleaner, following the manufacturer’s instructions on the container at all times
  5. Allow the decking to dry fully
  6. To restore the colour of decking that has turned gey or silver over time, use a dedicated decking restorer (see below)
  7. Treat the deck with a suitable decking preserver to help prevent reinfestation of mould, algae and fungi
  8. Allow the wood preserver to dry fully, as specified on the tin
  9. Apply a decking treatment such as a decking oil, decking stain or decking paint

Using a Decking Restorer

Decking restorer products are used to reverse the chemical processes that turn decking timbers grey and silver over time. Best used on bare wood decking or decking that hasn’t been treated for a number of years, these products help to reverse the damage caused by weathering, water and UV rays to restore the natural colour of decking boards.

A decking restorer usually works best when scrubbed in to the decking boards with a stiff brush, broom or abrasive pad and rinsed off with clean water after 15 to 20 minutes. The natural colour of decking normally returns within 24 hours.

Wooden decking that has been left untreated and has been grey or silver for a number of years may require a second application of decking restorer. Once the process has been completed, decking can be treated with a wood preservative and then finished with the desired decking oil, stain or paint.

Top Tip

Sweep decking with a stiff broom or brush on a regular basis, even through the winter months and especially if it is near or surrounded by bushes, trees and other plant life. This removes leaves and other debris from the deck that will otherwise decompose and mulch down in the groves of decking boards. Decomposing plant matter can promote mould, algae and fungi that can make decking slippery and dangerous. It can also degrade the decking finish or treatment at an accelerated rate which can ultimately lead to the onset of wood rot and decay.

Always wear gloves, old clothing and eye protection when applying decking restorer to decked areas.

Need to know more about other decking treatments and finishes? Read more about decking oils, decking stains, decking preservatives and decking paints.