Savu (Smoke)

Savu captures the haze of the north and its delicate beauty. Misty tones of shimmering darkness evoke a sense of calm and mystique.

Applications

Exterior CladdingInterior CladdingSauna CladdingFence

Manufacturing

Savu product is made by charring the wood surface at over 1000 °C using Hiil's charring technology. After charring, the product is pressure-washed, dried and oiled with clear special linseed oil. The oil adds protection and binds the char so that it does not dust or flake off.

Specifications

Surface Charred, washed, oiled
Wood species Pine, Kiertopuu® pine
Wood certification PEFC certified
Planed thickness 22, 28, 45 mm Note! Charring reduces the thickness of the wood piece by 0-3 millimetres and rounds the edges.
Width 120, 145, 170, 195 mm
Panel overlap -12 mm from width
Profiles
Tongue and groove panel
Tongue and groove panel
Straight-edged
Straight-edged
Country of origin Finland
CE marking Product is CE marked
Fire class D class B-class when treated with fire retardant, spruce as material.

Weather exposure

Weather exposure test for Hiil Oy charred wood products

Natural Resources Institute Finland - 27 March 2025 results - Veikko Möttönen and Nina Pottonen.

Weather exposure test programme: 102 min UV exposure and 18 min UV+rain exposure, repeated over 6 weeks (1008 h). Equivalence: The treatment can be considered to correspond to approximately 3 years of outdoor exposure to rain and sunlight. UV radiation dose in the test was approximately 218 MJ/m².

Downloads

Find more on the Resources page.