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Applications Maximum m.c. at time of installation for non air-conditioned application  Maximum m.c. at time of installation for air-conditioned application
 

Structural Components

* Columns, beams, bearer, studs, joists, ties and struts

30%
(Thickness >100 mm)

25%
(Thickness <100 mm)

Not applicable

Not applicable

 

Roofing

* Rafters, ties, struts, purlins and bracing

* Battens

30%

25%

Not applicable

Not applicable

 
 

Staircase

* Stringers, treads, trimmer beam and handrail

* alustrades

19% 

19%

 

12% 

12%

 
 

looring

* Floor boarding and parquetry

* Skirtings

19% 

19%

12% 

12%

 
 

Walling

* Wall, partition framing

* external wall boardings

* Internal wall boardings, slates screens

* Fascia boards

19%

19%

19%

19%

 

12%

Not applicable

12%

Not applicable

 
 

Ceiling Frames

* Cover battens to joints of ceiling sheets

* Ceiling strips and soffit battens

25%

19%

 

Not applicable

12%

 
 

Door & WIndow Frames

* Door, window and vent frames including their stops and grounds

* Door leaves, window and vent sashes

 

19%

19%

12%

12%

 

Furniture

* Built-in fittings, furniture generally

* Workshop furniture

* Science laboratory tops

19%

19%

19%

12%

12%

12%

Beading fillets and edgings generally 19% 12%
Background Color: red maroon blue
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