mafi & underfloor heating.



3-layer solid construction

Mafi is proud to be one of the only timber flooring products that can be placed over underfloor heating successfully, and without releasing toxic chemicals into the atmosphere due to being 100 percent all natural.  With over 30 years of experience in production and installation of wood over radiant heat, Mafi can guarantee you a beautiful, warm timber floor.

Mafi’s superior 3-layer construction, ensures the top and bottom layers are made of the same wood species, allowing for identical expansion and contraction. The middle layer is made of a fast growing conifer, generally spruce, running across the grain for added strength, which also cancels out any additional stresses. Due to these unique properties, as well as the all-natural oil finish, Mafi timber does not warp or cup when placed over underfloor heating.

Mafi floors are glued directly onto the heated slab to minimise thermal resistance and maximise heat transfer.

counteract the swelling and shrinkage behaviour


At high ambient humidity, any wooden floor absorbs moisture and increases its volume. At low ambient humidity, as is the case in the heating season during the winter months, the wood releases moisture and reduces its volume – gaps are formed. mafi’s symmetrical plank construction already noticeably reduces this effect.


symmetry as a Solution

Both the top and also the back layers are made with the same wood and same treatment. This results in a counter move which greatly restricts the warping of the plank. However, it is possible for gaps to form if the humidity drops too far in rooms equipped with wooden floors. Don’t see this as negative, but as evidence of the naturalness of your wood floor.


pay attention to the room climate 

A healthy indoor climate is also necessary for the well-being of people. During the non-heating period, gaps close up again. We recommend a full surface bonding on the underfloor during installation. In this variant, permanently elastic glue is to be used to give the floor the required flexibility. In addition, a complete underfloor heating protocol must be available. The surface temperature of the floor should not exceed 29° at any point at a room temperature of 21°.