How To Deal With 'Mould' On Pressure Treated Timber

Many of the timber products that we sell on GardenSite are manufactured from pressure treated timber. On some occasions a substance similar to mould forms on the surface but, as David Coton explains, this is harmless and easy to remove.

Created by David Coton on Tuesday, 7th of July, 2015.
Updated on Thursday, 10th of May, 2018.


Tenbury Arbour

Timber products such as sheds, arbours and pergolas are pressure treated to maximise their resistance to rot and insect infestation, so increasing their life span. 

The process involves submerging the timber in a container full of preservative solution. Pressure in the container is increased and the preservative forced into the wood.

After any excess preservative is drained, the timber is dried. It's at this stage that evaporating liquid leaves deposits on the surface of the timber.

These look like green/blue speckles (the same colour as the preservative) and can easily be mistaken for mould. Although when compared side by side, the difference between these speckles and mould is very apparent.

There's no need to worry as the speckles will disappear over time as the timber weathers. Alternatively, they can be removed either by pressure washing or light sanding.

During packing or storage, mould does sometimes occur if there isn't adequate air circulation. Again, this is nothing to be concerned about. The mould is only on the surface and not detrimental to the wood.

To remove it, just wipe with a damp cloth, brush or pressure wash the surface. You can also be reassured that when the product is assembled and in the open air, the mould will not return.

 

 

 

 

Related Articles

Review of Halls Qube Greenhouses

Review of Halls Qube Greenhouses

Robert Hall reviews the new Halls Qube Greenhouse, stating that; this is a major evolutionary step in greenhouse design. Read his full review of the new range here.

Author: Robert Hall

Written by Robert Hall.
Published on Thursday, 29th of November, 2018.

Which Log Store Should I Buy and Why?

Which Log Store Should I Buy and Why?

Wood burners and open fires that require a good supply of dry, well seasoned wood, have enjoyed a resurgence in popularity over the past few years. Log stores have therefore become increasingly essential and David Coton explains the differences between the many that are now available.

Author: David Coton

Written by David Coton.
Published on Friday, 12th of October, 2018.

Kelkay Launches Woodshaw Outdoor Timber Furniture

Kelkay Launches Woodshaw Outdoor Timber Furniture

Woodshaw is the brand name of the new timber garden furniture and decorative features range that Kelkay, one of the UK's leading landscape materials suppliers, are launching following their acquisition of Anchorfast.

Author: David Coton

Written by David Coton.
Published on Monday, 24th of September, 2018.

How To Build A Starter Chicken Coop

How To Build A Starter Chicken Coop

Building a Hutch Company Starter Chicken Coop is easy by following the detailed instructions that are supplied, it is a practical design that uses excellent quality wooden panels and requires only a screwdriver for assembly.

Author: Martyn Loach

Written by Martyn Loach.
Published on Monday, 17th of September, 2018.

comments powered by Disqus

Author

David Coton

Partner at GardenSite

View Profile

RSS

View RSS Feed

Follow Us!

Recent Articles

Review of Halls Qube Greenhouses

Review of Halls Qube Greenhouses

Robert Hall reviews the new Halls Qube Greenhouse, stating that; this is a major evolutionary step in greenhouse design. Read his full review of the new range here.

Author: Robert Hall

Written by Robert Hall.
Published on Thursday, 29th of November, 2018.

GardenSite Supports Successful Boldmere Community Festival

GardenSite Supports Successful Boldmere Community Festival

GardenSite were once again pleased to support the Boldmere Community Festival which took place on 18 November, with the Christmas Lights switched on by Alan Gardner, well known for his appearances as TV's Autistic Gardener.

Author: David Coton

Written by David Coton.
Published on Friday, 23rd of November, 2018.

What To Do In The Garden In December

What To Do In The Garden In December

Whether it's a bleak December or the more mild weather we are becoming used to, you can still spend useful time in the garden during the last month of the year. David Coton suggests some garden jobs that can occupy the short days.

Author: David Coton

Written by David Coton.
Published on Monday, 20th of November, 2017.

How Can I Prevent A Pond From Freezing?

How Can I Prevent A Pond From Freezing?

An iced over pond will have a detrimental effect on animal and plant pond life, although fish and amphibians will survive under a frozen surface for some time, ice traps gases escaping from decaying material and prevents oxygen from entering the water.

Author: Dan Everton

Written by Dan Everton.
Published on Wednesday, 22nd of August, 2018.