OWIM Powerfix Profi+ HG01701C - Page 12

12 GB
Wood moisture approximate value
for firewood
O 6–15
ideal for heating –
high heating value
O 16–20
restricted heating –
low heating value
X 21–44
not suitable for hea-
ting – further drying
necessary
Reference values for humidity
expressed in per cent by weight
Num-
ber
Material
Measuring
range
dry borderline too humid
1
birch, beech, cherry,
larch, nut tree
6–44 % < 12 % 12–15 % > 15 %
1
oak, pine, maple,
ash, Douglas fir
6–44 % < 15 % 15–20 % > 20 %
2
Cement screed, con-
crete, plaster
1.4–7.4 % < 2 % 2–4 % > 4 %
3
Anhydride screed
0.0–4.1 % < 0.5 % 0.5–1 % > 1 %
4
Cement mortar
0.8–5.1 % < 2 % 2–5 % > 5 %
5
Lime mortar
0.4–3.7 % < 2 % 2–3.5 % > 3.5 %
6
Brick
0.0–8.5 % < 1 % 1–3 % > 3 %