Suspended timber floors are normally made up of timber joists suspended from bearing walls, which are then covered with either floor boards or high quality sheets of tongue and groove. Another advantage of a suspended floor is that in some circumstances where your property is on a sloping site, using a solid floor can be very expensive as the walls to support the ground underneath would be very substantial and in turn, expensive. Benefits of timber sub-floors. Lightweight design using suspended timber floors makes good building sense with real benefits to home owners, builders and the environment:. Suspended floors can be either concrete beam and block or timber, but I can think of any advantages of using timber other than for DIY and easy to lift/move materials With a suspended floor you would have a concrete oversite (slab) over the ground beneath the floor or you could lay a ground sheet and gravel For an extension I would not even consider a suspended floor unless there where significant reasons why you could not form a traditional slab.
Suspended floors have the benefit of minimising the footprint on the ground and allowing a natural water course as well as providing some storage underneath even if it’s 600mm above ground. If you build your floor using steel or timber joists (200-240 deep), hempcrete can be used as infill between joists to seal the floor cavity as well as thermal mass since it has good thermal inertia. In fact the part-replacement of a suspended timber floor with concrete has often caused more dampness problems than it solved. In recent years the site-built timber joist suspended floor has been losing market share to precast concrete solutions indicating that the traditional process of providing a structural timber floor is not appropriate to today s construction needs. Perceived advantages and disadvantages of timber and concrete floors, are summarised in Table 1.
These beams are infilled with aircrete blocks and have the advantage of being a completely dry construction system. A block and beam floor eliminates the bounce associated with timber floors. Thermal flooring systems Thermal flooring systems are a simple and cost effective way to create a fully insulated suspended floor. Concrete Floor: The advantages are: – It is strong and stable. (b) Suspended timber ground floor (hollow sub-floor) (Figure 21) – It can solve the problem of dampness from the ground. A suspended timber floor, where the floorboards sit upon wooden joists can be insulated in one of two ways:. The benefit is potentially better insulation, no loss of room height & no level changes between rooms.
Ground Slab V Suspended Slab
The main advantage of a reinforced-concrete suspended floor is its greater fire resistance and better sound insulation than that of a timber floor, but it is generally too expensive to find applications in farm buildings. Choose a quiet suspended concrete floor over a squeaky timber floor in Brick Veneer construction. The Thermal Mass Advantage The Smartslab thermal mass advantage is an optional fully insulated suspended ground floor slab with Hydronic heating if required. In this article we try to set out the advantages and drawbacks so that you can make a choice based on knowledge. Both may benefit from slab edge insulation. When renovating rooms with timber floors, it is often possible to replace the timber with a concrete slab for added thermal mass and quietness underfoot.