Suspended Timber Ground Floor Minimum Clearance

5 1 18 laying the ground bearing floor slab.
Suspended timber ground floor minimum clearance. 5 1 17 ground floor slab and concrete. When the flooring of a suspended timber framed floor is particleboard nzs 3604 2011 timber framed buildings specifies a minimum clearance of 550 mm between the underside of the particleboard and the ground paragraph 2 3 7. The ends of these timber joists are built into or suspended by joist hangers from the external walls of the property. Timber joists should normally have a minimum bearing.
Ground floor hollow or timber floor. However paragraph 6 4 1 1 in nzs 3604 2011 allows a minimum pile height above finished ground level of 150 mm. Minimum ground clearance height mm. 5 2 suspended ground floors.
5 1 22 installation of insulation. So in what situations may minimum pile heights apply. 5 2 2 provision of information. Where a suspended floor is constructed with particleboard flooring product suppliers specify a minimum clearance between the underside of the particleboard and the ground.
20 damp proofing concrete floors. It is necessary to allow adequate ventilation and ensure durability of the timber bearer. Ground moisture rising into or entering the subfloor space can create a damp environment which encourages timber rot fungus growth and the potential for termite activity. To do this a minimum ground clearance from underside of bearer to finished ground level of 150 mm should be maintained.
Nzs 3604 sets a minimum height above ground for wood based products used for flooring. Generally this is given as 550 mm minimum but it may be specified as a minimum dimension of 450 mm between the ground and the bottom of the joist which will give at least. E2 as1 gives minimum heights of finished floor levels above ground for concrete slab floors and suspended timber floors the measurements depending on whether there is grass or paving outside.