Hiram floorboards can be installed on most common substructures,. This includes concrete floors, wood-based structures or joist constructions.
The substructure has to be clean, dry and leveled. Especially Screed has to have no more than 2 % CM of moisture. For more information about the requirements for other substructures please contact a local expert for wooden floors and parquets.
Our floorboards can also be placed on underfloor heatings. Depending on the season the floor planks will warp slightly. But as long as the building is well isolated and there are stable humidity levels, strong warping should not occur.
Keep in mind that the underfloor heating should be running for at least 30 days prior to installation of the floorboards. This eliminates all residue moisture within the substructure. 24 hours before the installation the heating has to be turned off and only turned on again one week after. After 7 days it can be slowly activated again.
The floorboards should be immediately stored in a clean and dry room. The planks are delivered with a wood moisture of 8-10%, that means that the rooms where they are stored and later installed in, require to have a corresponding room moisture of 35 – 65% and a room temperature between 18- 25%.
The floor should be sanded down and vacuum cleaned before the first treatment. This eliminates bumps and any dirt which has gotten on to the surface. The floor and room should be dry and the room temperature between 18- 25°C.
Hiram floorboards made of Douglas fir require a thorough treatment with either soap, lye or oil. Typical are the scandinavian style finishings with white lye & soap or a lye & natural oil treatment. Find more information about the color schemes in our „floorboard“ page.
The „Scandinavian“ method with lye & soap is more time consuming than lye & oil, since the floor has to be cleaned with soap every 2-3 weeks. This treatment is very careful due to the fact that it sets up pressure marks in the wood again.
The Lye & oil treatment only has to be done every six months. The oil completely seals off the surface and protects the floor from dust and dirt. Unlike the soap treatment, pressure marks will not be evened out again, due to the sealing effect on the surface. For more information check out our downloadable PDF „Maitenance & finishing“ above.