A lack of ventilation beneath a timber suspended floor and or damp can be major causes of problems. Excessively 'springy' floors (think ornaments In houses of all ages, the floors upstairs generally comprise some form of timber joist and board construction. From the 1970s, chipboard panels started to

plates and at least 150 mm to the underside of the suspended timber floor (or insulation if provided). Two opposing external walls should have ventilation openings placed so that the ventilating air will have a free path between opposite sides and to all parts. The openings should be not less than either 1500 mm² m run of

However, it is important to note that the cavity between the concrete slab and the timber floor needs to be ventilated well or dry rot may occur. A solid Floor is much simpler and cheaper. It consists of solid concrete built into the ground. One advantage is that it can hold more weight than a suspended Floor. Another is that it

Concrete slab floors come in many forms and can be used to provide great thermal comfort and lifestyle advantages. Slabs can be on-ground, suspended, or a mix of both. They can be insulated, both underneath and on the edges. Conventional concrete has high embodied energy. It has been the most common material

Suspended Timber Floors Insulated with SuperGlass Multi-Roll. Typical Construction. In a suspended and ventilated timber ground floor, the insulation is laid between the joists and supported on polypropylene netting with a deck of tongue and grooved chipboard. Netting is required to be positioned and stapled between

1.1 million have suspended timber-framed Subfloor ventilation. The 2005 BRANZ House Condition Survey found 38% of homes with suspended timber floors had less than half the subfloor ventilation required by the current Figure 2: Examples of good timber sub-floor construction that acheive the required ventilation.

Floors at or near ground level should be constructed in accordance with the recommendations in clause 11 of CP 102: 1973. However the ventilation of the sub-floor as described in clause 11.8.4 of CP 102: 1973 is not recommended but should be provided as described in clause 3.4.4 for suspended timber floors.

The telescopic underfloor vents provide a clear airflow passage through the wall into the voids below suspended concrete and timber floors. The telescopic feature enables the product to adjust the ventilation channel vertically within the cavity, helping to meet the Building Regulations Part C requirement for ventilated floors.

3 Ground Floors. Early Timber Floors. Most houses at the end of the Victorian period (1900) were built with suspended ground floors. There were exceptions to this. They were generally badly ventilated, often prone to flooding (the ground level under the floor was often lower than the ground outside), and the joist ends are

This is block and beam (known as suspended floors). Rigid construction. A block and beam floor eliminates the bounce associated with timber floors. Shrinkage is minimal and block and beam floors do not creak in Thermal flooring systems are a simple and cost effective way to create a fully insulated suspended floor.

Many older houses with suspended timber floors have big draughts and inadequate floor insulation; this can cause cold feet as well as higher energy bills. Installing . However I have no reference data on ventilated airspaces so suspect the benefit would be marginal with the airflow being the biggest factor. Maybe another

SITE QUALITY CONTROL of these and other works, will the expected advantages be realised. REQUIRED ATTENDANCES. - Facilities for the safe unloading and distribution of flooring and accessory materials. - Provision of dry, clean, ventilated, waterproof, warm and secure storage area. Floorcoverings and associated

It is recommended that the timber industry undertake research to determine the range of sub-floor ventilation rates that apply to Australian construction practices. Also it is recommended that the timber industry work to ensure a more realistic representation of suspended timber floors in rating scheme software such as

Ground floor insulation either for concrete slabs or suspended timber floors is a further consideration where all other house elements have been exploited. thermal performance. The designer should balance the extra benefit(s) attached to installing a new slab with the cost, marginal carbon gains and pragmatics involved.

At all times adequate and unobstructed ventilation must be maintained to the underside of the suspended timber floor joists. For new houses with which have a solid ground bearing concrete floor construction a continuous damp-proof membrane radon barrier beneath is required beneath the insulation or below the