User manual

Determining material moisture

Laserliner

Due to the differing constitution and composition of materials,

speciÖc application notices are to be followed for their moisture

assessment:

Screed:

This device also measures through tiles, linoleum, vinyl and

wood but these coverings will in×uence the measurements.

The resulting value is therefore to be viewed as a relative value

to localise moisture and moisture paths.

Plaster:

This device also measures through wallpaper and paint but not

through

metal (foils). Though measurements may be in×uenced, the

moisture in walls can be readily tracked by moisture differences

such that conclusions can be made with respect to damage, for

example, to insulation, vapour barriers or masonry.

Softwood / hardwood

The measurement should be made with the length of the de-

vice in parallel with the grain of the wood. The measured depth

in wood is 30 mm maximum but does vary somewhat with

differing wood densities. Measurements made on thin wood

boards should, if possible, be made on a stack of these boards

as otherwise the measurement will be too low. Measurements

made on installed wooden structures are in×uenced by the

structural conditions and their chemical treatments (e.g. paints)

with various materials. Thus such measurements should only

be viewed relatively. Nevertheless, the differences in moisture

distribution are very good for localising moist places as an

indication of damage, e.g. in insulation.

max. 30 mm