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hong  
#1 Posted : Saturday, 17 October 2009 2:51:20 PM(UTC)
hong

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Groups: AcademicCoachingSchool, admin, Administration, BookSeller, CatholicSchool, CoachingAdult, CoachingProfessional, CoachingSports, ExtraCurriculumCoaching, IndependentSchool, Moderator, MusicTeacher, PrivateSchool, PublicSchool, SelectiveSchool, tutor
Joined: 16/10/2009(UTC)
Posts: 47

Check the timber boards once arrived from the supplier

Wrapping is in good condition and there are no signs of the product getting wet.

Boards should be checked for:
• Moisture content - should be in the range of 9% to 14% with the average moisture content for all pieces approximately 11%.
• Cupping (Australian standards allows for 1 mm in 100 mm)
• Cover width (Should not vary by more than 1mm between boards)
• Tongue and groove tolerance (not to be less than 0.3 mm nor greater than 0.6 mm, Snug fit to slightly loose, The fit should not be loose and sloppy or overly tight.)

The boards should be rejected if a problem is found.
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hong  
#2 Posted : Saturday, 17 October 2009 3:13:26 PM(UTC)
hong

Rank: Administration

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Groups: AcademicCoachingSchool, admin, Administration, BookSeller, CatholicSchool, CoachingAdult, CoachingProfessional, CoachingSports, ExtraCurriculumCoaching, IndependentSchool, Moderator, MusicTeacher, PrivateSchool, PublicSchool, SelectiveSchool, tutor
Joined: 16/10/2009(UTC)
Posts: 47

Acclimatisation

Purpose: to minimise the movement of a floor (swelling on moisture uptake, shrinkage on moisture loss) due to changes in moisture content.

Acclimatisation relies on each board being exposed to the in-service atmosphere and therefore packs must at least be opened up and re-stacked in a way which allows airflow between each board. Acclimatisation can only be effective in an air-conditioned building if the air-conditioning is operating at the time or in dry localities during drier periods. The species and period for which it is acclimatised will also influence effectiveness. For some higher density species that are slow to lose or take up moisture, acclimatising may have little effect. So minimum 2 weeks acclimatisation is required.

Acclimatisation in dry climates does not negate the need to provide for floor expansion during periods of wet weather and will not overcome poor drying practices.


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