Treatement of dry rot

It is a very destructive fungus! The dry rot Serpula Lacrymans grows at high speed: up to 12 cm per week in a favorable environment!

How to recognize dry rot?

A high humidity rate, darkness and poor ventilation are the basis for the development of wood-destroying fungi, such as the Serpula lacrymans and the Meruliporia incrassata.

Through its life-cycle, dry rot feeds off timber, taking cellulose and moisture from it. It is able to travel across non-nutrient surfaces like brick or stone walls to grow up to 5‘’ (12cm) by week!

Before starting any work, you must accurately identify the fungus with the help of mycology experts and fix the root cause of its development.


How to treat the dry rot?

Mark the contaminated area by the filaments and carry out the treatment to a minimum distance of one meter around the concerned area. Remove all coverings hiding the ground surface, ceiling, the masonry and the wood to protect, such as linoleum, carpets, parquet, fabrics, plasters and coatings.

Eliminate dry rot fungi present in timber

1/ Preparation

– Probe each wood section to evaluate the strength and judge the eventual replacement of certain parts.
– Remove and burn contaminated wood and paneling.

2/ Treatement

– Drill the 2/3 of the beam thickness every 33cm maximum.
– Inject a fungicide in the wood kept, double-injection in the endrestraint including a crossing one if the section is large enough.
– Spray the chemical on all the accessible faces.

Eliminate dry rot fungi present in masonry

1/ Preparation

– Brush with a wire brush to remove the fungus‘ mycelium.
– Burn with a blowtorch the floors, walls and masonries, to destroy any fungus parts: fruiting body, mycelial extension, etc.
– Remove the rubble, spraying it with fungicide to prevent new contamination.

2/ Treatement

– Drill in a grid pattern over the whole surface concerned, with holes spaced about 15 to 20cm in a staggered row on several lines and/or to both sides of the wall.
The depth of the injection holes should be the 3/4 of the total thickness of the wall.
– Set the injectors into each drilled hole and inject the fungicide with your MABI pump.
– Spray the chemical to the whole of the area concerned.


treatement by injection mabi catalog

The methods are given for information purposes only.

Always refer to the local legislation and to the chemical manufacturer’s label before starting any job.

Always wear the Personal Protective Equipment (PPE) required and officially approved for chemical handling, including gloves, coverall, respirator and protective eyewear.