parquet during the seasons
Wood is a hygroscopic material, which means it can absorb and release moisture.
On the one hand, this fact can have a negative impact on the climate, but on the other hand it can also be detrimental
cause it to swell when it absorbs moisture (gets bigger) or fades when moisture is released (smaller
becomes and contracts). Whether it swells or fades depends directly on the room climate. Is this
Climate too warm and too dry, so the wood shrinks (gets smaller), it is too humid, so it swells (gets bigger).
Even multi-layer parquet (finished parquet) shrinks and swells , but to a much lesser extent than solid parquet.
Especially in the winter months, when the humidity in the room is often too low (see diagram), it comes
by sub-drying of the wood to joint formation, Aufschüsselungen, Abschieferungen and also cover layer detachments.
Therefore, the company Rudda in the installation instructions and in the appendix to the order confirmations and
Invoices under “Product-related Information” expressly to the following:
“The laying of prefinished parquet may only be carried out on completely dry, level and firm subfloors.
Make sure there is enough humidity of at least 50-60% at a room temperature of
approx. 21 ° C so that the beauty of your parquet floor remains intact in order to avoid cracks, slips,
Joint formation and bends (and thus detachment of the cover slats), etc. during the heating periods
“Enough indoor plants and the installation of humidifiers is recommended.
To prevent damage to the parquet and an increase in heating costs, no carpets on parquet over
Floor heating systems are laid.
A humidity of at least 50% is not only for the preservation of the value of the wooden floors but also for the personal
Well-being of the residents very important.
During the heating season around September to April provide sufficient indoor air humidity (50-60%).
After the heating season, when the natural humidity increases again, joints and bowls become
partially go back again.
For low temperature underfloor heating (hot water underfloor heating with flow temperature up to 55 ° C) the surface temperature of finished wooden floors must not exceed 29 ° C, even in the edge zones. ideally Normal value are 26 – 27 ° C.
Loose cover layers, wind cracks with spatula or knife lift, glue or some
Inject drops of commercially available superglue and glue it down, (possibly weight it down)
or spread with battens from the ceiling). If necessary, cut away sharp points with knife or
In order to avoid adhesive residue on the surface of the parquet floor, cover this area beforehand.
Holes, cracks and fancy putties can be filled with appropriate wax kites and joint fillers