02 —Specification
Choosing a floor for the Kingdom's climate.
Heat, humidity and underfloor heating — engineered versus solid wood.

Wood is a living material: it takes on moisture from the air and gives it back, swelling and shrinking as it does. In a temperate climate that movement is small enough to ignore. In the Kingdom it is not. A villa can swing from a humid coastal morning to a bone-dry air-conditioned afternoon, and a solid-wood floor asked to bridge that range will cup, gap and lift. The question is rarely which species looks best — it is which construction will stay flat.
Engineered wood answers it. Instead of a single piece of timber, an engineered board is built from cross-laminated plywood layers under a real-wood top layer of around three-and-a-half millimetres. The cross-grain core resists the seasonal movement that defeats solid planks, so the board holds its shape through the same humidity swings — while the surface remains genuine oak or walnut that can be sanded and refinished for years. You keep the material and lose the instability.
Underfloor heating and cooling raises the stakes again, because the floor is now a temperature-cycled surface. Solid wood over a heating loop is a specification most manufacturers will not warrant. Engineered parquet is designed for it: HARO's engineered floors and DISANO design floors are both approved for underfloor heating and cooling, and their thin, stable build lets heat pass through efficiently rather than insulating the room against it. Where water is a factor — damp rooms, ground floors, poolside interiors — rigid SPC and approved Aqua laminates like HARO's Tritty 200 Aqua add a fully waterproof option to the same climate logic.
None of it works without the groundwork. We acclimatise material in the room for at least forty-eight hours before laying, so the boards reach equilibrium with the air they will live in rather than the warehouse they came from. We test subfloor moisture, prepare to DIN standard, and specify the system to the room — its light, its traffic, its heating. Specify for the climate first, and the floor will still be flat long after the fashion that chose it has passed.


