• Damp Proofing
  • Woodworm
  • Dry Rot
  • Wet Rot
  • Condensation/Mould
  • Waterproofing
  • Local Branch
Wise Blog
  • Damp Proofing
  • Woodworm
  • Dry Rot
  • Wet Rot
  • Condensation/Mould
  • Waterproofing
  • Local Branch
Home  /  Dry Rot • Wet Rot  /  The Difference Between Wet Rot And Dry Rot
01 June 2023

The Difference Between Wet Rot And Dry Rot

Written by Kirsten Toner
Kirsten Toner
Dry Rot, Wet Rot timber treatment Leave a Comment

Do You Know Which One Is Worse

A question that we get asked a lot is “What is the difference between wet and dry rot?” The answer to this question is actually very simple; wet rot requires higher moisture content than dry rot in order to grow. Read on to find out about further differences between wet rot and dry rot.

Where Does Wet Rot Grow?

Wet rot grows on porous surfaces such as timber where there is moisture content of at least 50%. Wet rot can often lead to major structural damage if it is left to grow unchecked as it can weaken timber.

Moisture content this high often is a result of defective plumbing, gutters, downpipes or stone pointing. If you spot a defective pipe then it is worth checking out your property to ensure there are no signs of growth. Fortunately, wet rot does not spread through masonry and the growth of wet rot will cease when the moisture is removed.

wet rot growing
Affected Timbers
Wet rot fungus
Wet rot fungus

Where Does Dry Rot Grow?

Although the name dry rot suggests that no moisture is required for it to form dry rot actually requires moisture content of around 20%. A major, and important, difference between dry rot and wet rot is that dry rot will often occur in areas of the property that cannot be seen. This can lead to significant damage before the problem has been identified.

These areas are often attics or underfloor areas that have poor ventilation and therefore a higher-than-normal moisture content.

Surveyor spotting dry rot
Surveyor spotting dry rot
Dry rot fruiting body
Dry rot fruiting body

Differences In Appearance

Wet rot identification:

  • Look out for black fungus growing on timber. 
  • It will feel soft and spongy and likely darker than surrounding timber. 
  • If it has dried out it will easily crack and crumble into fine pieces.
HOW TO IDENTIFY WET ROT

Dry rot identification:

  • The timber will be brown in colour and will easily crumble in your hand. 
  • There could be silky white sheets. 
  • There could be a ‘fruiting body’ growing on the timber.
HOW TO IDENTIFY DRY ROT

Contact An Expert

 If you suspect that you have a form of rot in your property call an expert at Wise Property Care today or contact us online by clicking the button below.

CONTACT WISE PROPERTY CARE

Kirsten Toner
Kirsten Toner

Kirsten is the Digital Marketing Manager for Rentokil Specialist Hygiene, joining Rentokil Initial over 6 years ago. She enjoys raising awareness for promoting best practices in cleaning & disinfection, and the importance of hygiene in various industries and everyday life. Outside of work she enjoys spending time with family and friends, reading mystery novels and cooking up a storm in the kitchen.

Leave a Reply

Cancel reply

Need some advice?

Call Wise Property Care on:

+448083018231

Categories

  • Condensation
  • Damp Proofing
  • Dry Rot
  • Mould
  • Penetrating Damp
  • Rising Damp
  • Structural Repairs
  • Timber Repairs
  • Timber Treatment
  • Waterproofing
  • Wet Rot
  • Woodworm
  • Manage Cookies
  • Cookie Policy
  • Privacy Policy
  • Legal Statement
  • Modern Slavery Statement
  • RI Supplier Code
  • RI Gender Pay Gap Report
  • Main Website
  • About Wise Property Care
  • Work for Us