Moisture Content

Dried Structural timber is produced and leaves the production facility at a target moisture content between 12% and 18%. We recommend every effort be made to keep the product dry during storage and construction.

Moisture Content

 

METER READS

TRUE MC Boron H1.2

TRUE MC LOSP H3.1

TRUE MC CCA H3.2

10

11

13

10

11

11

14

11

12

12

15

12

13

12

16

12

14

13

17

13

15

13

18

14

16

14

19

14

17

15

20

15

18

16

21

16

19

16

22

17

20

17

23

18

21

18

24

19

22

19

25

19

23

20

26

20

24

21

28

21

 

     

KEEPING KD TIMBER DRY

Red Stag Dried Structural Timber is produced and leaves the production facility at a target moisture content between 12% and 18%. We recommend every effort be made to keep the product dry during storage and construction by keeping it covered and allowing free air circulation to dry any temporary surface wetness.
Where wetness is unavoidable, timber will dry back to EMC given the right conditions - low humidity, continuous air circulation, heat and shielding from the weather.

TREATED TIMBER

Red Stag H1.2 Timber is treated with boron to prevent both insect damage and mould. Boron treated timber is non-toxic to humans and has many environmental and Health & Safety benefits over other forms of H1.2 timber treatment. Boron has been used as a timber treatment for 60 years and has proven it's effectiveness.
Boron treatment is a soluable salt and increases the electrical conductivity of the timber. This causes electrical conductivity meters to read higher than the true MC. This becomes even more apparent using short uninsulated needles or capacitance type meters which measure conductivity at the surface where boron concentration tends to be highest. For accurate measurements insulated probes should be used to penetrate at least one third of the timber thickness, a procedure recommended by Scion.
To compensate for the electrical effect of the boron, and to get an accurate measure of the moisture content the following table should be used with Red Stag H1.2 boron treated timber. For example, using insulated probes, if the meter reads 23%, the true MC will be 20% which is acceptable for close-in under the Building Code. If uninsulated probes or a capacitance meter is used, the procedure does not conform to AS/NZS 1080 and a larger correction factor needs to be applied.
 

TREATMENT COLOUR

TREATMENT

ACTIVE CHEMICAL

COLOUR

BH1.2

BORON

Pink

LH3.1

AZOLES

Light Green

MH3.2

CCA

Green

MH4

CCA

Dark Green