About our dry rot test

Serpula lacrymans and its relative Serpula himantiodes, are estimated as the most serious forms of dry rot. They attack wood structures and break down the cellulose in the wood which then becomes brittle and loses its strength.

With our test you can quickly and easily get an indication of the presence of dry rot in a house even if you do not see the dry rot attack. This means that the hidden attack of dry rot can be detected early, often reducing the cost of taking action against the damage.

Indication of the presence of dry rot

Spores from Serpula lacrymans and its relative Serpula himantiodes spread with the indoor air and settle with other dust particles on surfaces around the house. A dust sample or a sample from the dry rot attack, taken with a cotton swab, can be used to detect dry rot. The dust sample is taken at different locations in the house. The surface should be dry, unexposed to sunlight and not have been cleaned in the last month. After the sample is taken it is sent to our accredited (ISO/IEC 17025) and quality-assured laboratory for analysis.

The analysis method

Dynamic Code uses the latest DNA technology to analyse the sample. The method is based on PCR and detects the presence of DNA from Serpula lacrymans on the sample swab.

Analysis results after a few days

1-3 days (weekdays) after the sample arrives at our laboratory the result can be accessed on our website. The result of the analysis can also be reported as desired. The result indicates whether there is dry rot in the house or not. In order to detect dry rot in a dust sample the mould must have formed spores. A result that shows no demonstrated incidence of dry rot does not necessarily mean that there is no dry rot in the house. If the result indicates that dry rot is found, refer the client to an expert in the field for in-depth investigation and action. The result applies to the submitted sample(s) and not the building in its entirety. If the house was recently decontaminated of dry rot and a control measurement indicates the presence of dry rot, we recommend that you take a sample in a few months

Information and price quotes

For purchase and further information about our test for dry rot as well as potential collaboration, contact us.

Phone: +46(0)13 465 53 20

E-mail: info@dynamiccode.se

Quality and security

Dynamic Code laboratory is accredited under ISO/IEC 17025 and reviewed by the Swedish Board for Accreditation and Conformity Assessment (SWEDAC).

In a validation study based on 112 samples comparing the Dynamic Code method for detecting Serpula lacrymans with microscopy and a DNA method carried out by an external laboratory, the results showed 98% methodological certainty.

The method for Serpula himantioides has been validated by a material consisting of 89 samples, 15 of which are cultivated strains of Serpula himantioides.