Suspended Ground Floor Slab Details

The slab is constructed on well compacted granular fill, crushed stone or marl.

Suspended ground floor slab details. GEO-VENT & GROUND LEVEL VENT BOX. The requirements of AS 3660.14 are also covered. Concrete ground floors insulated above the structure Insulation above a concrete floor is generally associated with suspended pre-cast construction, such as concrete beam and block systems.

A typical level threshold detail could be where the insulation is returned along the edge of the floor slab to reduce the risk of bridging. All concrete must be deposited, vibrated and cured in accordance 17.50 mpa 40.00 mpa 1. Sloping ground may require steps in the substructure and possibly different floor levels.

Concrete slab floor construction was often used for internal garages or lower levels of split level houses, with suspended floors used for other parts of the house. Previously, floor timbers had been prone to damp and rot thanks to their direct contact with the moist ground. The slab may be supported by walls or by reinforced concrete beams usually cast monolithically with the slab or by structural steel beams or by columns, or by the ground.

There are 2 types of floor construction used in construction today;. 5.1.17 Ground floor slab and concrete;. Where a void is left below the slab, a precast floor system can prove economic and durable if suitable cover to the reinforcement and adequate ventilation to the void is provided.

A suspended floor is a ground floor with a void underneath the structure. Construction Studies drawing detail of suspended timber floor. Suspended Ground Floor Slabs.

Non-suspended slabs sit directly on the ground. 50mm concrete or fine aggregate on a polyethylene membrane laid on 50mm sand blinding, or 100mm concrete. This Guide describes and illustrates the various types of concrete slab-on-ground floor systems and suspended floors suitable for residential buildings ranging from single, detached houses to medium density buildings of apartments and flats.

A suspended concrete floor is a floor slab where its perimeter is, or at least two of its opposite edges are, supported on walls, beams or columns that carry its self weight and imposed loading. Ground bearing and suspended. 1-16mmØ top & bot.

The reinforced concrete floor slab is kept free of the perimeter walls. For slab-on-ground floors it provides an understanding of the footing/slab selection, design, detailing and construction requirements contained in AS 2870 and the Housing Provisions of the BCA. Company number –.

CLICK HERE for Floor/Wall Combinations. For situations where the ground is unsuitable for the support of the ground floor slab or where the slope of the site makes it economic to leave a void below the ground slab, suspended floors are adopted. Clean the slabs on grade using air compressor for dust or any small particles or deleterious materials that may impair the workability of concrete.

Our technical downloads library provides you with all your requirements for your next project, from our comprehensive datasheets to our thorough range of standard details. Ground Floor - Insulation above slab. The mesh reinforcement in the slab is placed in the top with 1" covers.

Heat Loss through an Insulated Slab Windows 33% Roof/Ceiling 8% Slab 15% 6 Doors 5% Walls 39% Insulation and Fenestration Criteria Table 402.1.1 Insulation and Fenestration Requirements by Componenta CLIMATE ZONE FENESTRATION U-FACTORb SKYLIGHTb U-FACTOR GLAZED FENESTRATIONb,e SHGC CEILING R-VALUE WOOD FRAME WALL R-VALUE MASS WALL R-VALUEi FLOOR R-. 2.09 - Suspended ground floor slab:. A slab is ground-bearing if it rests directly on the foundation, otherwise the slab is suspended.

Provide supplementary reinforcement at small unframed long @ 0.8m.o.c. The suspended reinforced concrete slab is tied into the external capping beam. Wall-ground floor junction Junction sub type:.

CLICK HERE for Floor/Wall Combinations. At the turn of the 18th century, when construction techniques moved from boarded floors installed directly on the ground to suspended timber floors over a ventilated chamber, the innovation solved a significant problem. These can be classed as either Suspended or Solid.

The ground should have a layer of concrete poured across and there should be a ventilated gap of at least 150mm between the underside of the timbers and the concrete, to prevent moisture gathering and affecting the condition of the joists. There are two types of concrete floor system commonly used in residential construction;. The slab has to carry a distributed permanent action of 1.0 kN/m2 (excluding slab self-weight) and a variable action of 3.0 kN/m2.

RIW/TD/801 Typical ground bearing slab detail:. FLOOR CONSTRUCTION Concrete or Timber Floor?. TIMBER SUSPENDED FLOOR Ground preparation - Remove top soil and vegetation, apply total weed killer and 150mm min thick sand blinded hardcore, then either – (i) Provide concrete ground cover of at least 100mm thick or (ii) Prepare the ground to an even surface and lay a ground cover of concrete at least 50mm thick, on a damp-proof membrane of at least 10 gauge polyethylene, laid on a bed of fine sand blinding.

Typical applications for the product include floor insulation for use below a concrete floor slab, below a concrete based screed on a concrete slab with a hardcore base, above a suspended beam and dense block floor and between the joists of a suspended timber floor. 7.2.23 Fascias and trim;. This chapter gives guidance on meeting the Technical Requirements for suspended ground floors including those constructed from:.

For design of slabs-on-ground, with the exception of highway and airport pavements, parking lots, and mat foundations. They are normally pre-fabricated offsite, and transported by truck. Concrete slab floors come in many forms and can be used to provide great thermal comfort and lifestyle advantages.

Suspended slabs differ from non-suspended slabs because they are suspended above the ground via beams. 5.1.18 Laying the ground-bearing floor slab;. They can be insulated, both underneath and on the edges.

Some slabs have hollow channels running through them - these 'hollow core slabs' are used to help reduce weight, and also to allow cabling and piping to be run through the slab. Slabs are constructed to provide flat surfaces, usually horizontal in building floors, roofs, bridges, and other types of structures. The floor spans between supports and will normally deflect under load to a dimension that is limited by the design used.

Suspended Floor {product_related_downloads:count} Typical housing details. 6.5—Installation of auxiliary materials. SIGN IN / SIGN UP To download the online Handbook.

Wall U-value (W/m 2 K):. 17 day 21 day 3 day 1 day 3. 1.2.2 ACI Committee 302develops recommendations for construction of slab-on-ground and suspended-slab floors for industrial, commercial, and institutional buildings.

Conventional concrete has high embodied energy. As a requirement of the Building Regulations the structure should be protected against the growth of weeds and other plant-life. CAD Details Floors Ground floor – Insulation below floor slabTypical wall – floor junctionGround floor – Insulation above floor slabTypical wall – floor junctionGround floor – Underfloor heatingTypical wall – floor junctionSeparating floor – Underfloor heatingConcrete floor with underfloor heatingGround floor – Suspended concrete floorTypical wall – floor junctionExposed.

150mm Cast In-Situ Suspended Slab. For slabs openings in floor slabs as shown below. The ground floor is made up of suspended concrete slab or beam and block floor, supported by the external and internal load bearing walls, which transfer the loads to the foundations below.

Slabs can be on-ground, suspended, or a mix of both. So this isn’t ideal on soils prone to seasonal movement, like shrinkable clay with trees in the vicinity. Detail Number Product Name Junction type Developer Wall type Wall U-value (W/m 2 K) Floor U-value (W/m 2 K) SAP K1 ref BRE Ψ-value (W/mK) BRE Temp.

2.09 - Suspended ground floor slab:. In the UK the Building Regulations Approved Documents provide guidance on some of the requirements of ground floors. ACI 302.1R provides guidelines and recommendations on.

Pre-cast suspended ground floor. When a concrete slab forms part of the roof construction of a building, it is normally referred to as the ' roof slab '. While Knauf Insulation offer various insulation products into suspended ground floor applications, we would emphasise that site specific conditions should always be considered on a case-by-case basis and any generic product recommendations must always be subject to an onsite evaluation.

However, the floor structure is supported by external and internal walls. Both pre-cast concrete planks or slabs can be used, as well as cast in situ reinforced slabs along with beam and block systems. Suspended Ground Floor Slab Reinforcement construction.

Suspended concrete slab is referred to a cement slab that is not in contact with the ground. Alternative Floor Slab Detail. Stripping of forms and shores shall be as follows:.

Visqueen are the market leaders in the manufacture, design and supply of structural waterproofing and gas protection systems. The surveyor will then checked the level of the projected top surface of the slab and place level strips if necessary to mark the exact level. These slabs are generally classified as ground-bearing or suspended.

The most common application of suspended slab in residential construction is used at garage floor where below the garage floor is a storage room or additional area for family usage. 150mm Insulation Below Slab (0.022W/mK) View Details. This type of concrete slab construction requires different concrete slab design from the one we normally see that is cast on the ground.

Detail applicable:- Ground-bearing floor;. Robust Details Limited, Unit 14, Shenley Pavilions, Chalkdell Drive, Shenley Wood, Milton Keynes, MK5 6LB. Wall-ground floor junction Scottish Building Standards:.

Slabs are classified into 16 types. Beam and block floor. 7.2.21 Valleys and hidden gutters;.

Concrete slabs that form the ground floor of a building may be either supported on beams (called a suspended slab) or supported directly on the subsoil, (via hardcore, for example) called a ‘ground-bearing slab '. Monday, January 7, 13. In Situ Ground Bearing Concrete Floor.

RIW/TD/1 Floor level greater than 600mm below ground level. Insulation above slab, with timber floor finish Keep cavities clean of mortar snots and other debris during construction. Suspended slabs are made of concrete and steel mesh, the same as a ground slab.

Whereas foundations are normally dug down at least a metre to anchor the building into solid ground, floor slabs sit on the cleared oversite, less than half a metre deep. KORE Floor Insulation is a super versatile insulation prod - uct. In many domestic and industrial buildings, a thick concrete slab supported on foundations or directly on the subsoil, is used to construct the ground floor.

Solid floors are a lot more substantial and require the ground to be made up in layers of ground sub base, sand, compacted hard core, damp proof membrane, insulation and concrete. The slab is outside buildings which subjected to 1 hr fire resistance and design for 50 years design life. In-situ suspended ground floor slab;.

Suspended floor where the infill is more than 600mm Shrinkable soil, expansive materials or other unstable soils may require suspended floor construction. The materials to be used are grade C25 concrete and grade 500 reinforcement. The floor can be formed in various ways, using timber joists, precast concrete panels, block and beam system or cast in-situ with reinforced concrete.

Ensure block with a maximum. Construction details Excavation Construction started with the removal of topsoil and excavation for footings. But there’s a risk with solid slabs.

Timber used for suspended ground floors should be treated or naturally durable, in accordance with Chapter 3.3 ‘Timber preservation (natural solid timber)’, and the ground below the floor covered with:. 150mm Insulation Below Slab (0.022W/mK) View Details E5MCPF28 Suspended In-Situ Concrete Floor, Insulation Below Slab. GEO-VENT & VENTING BOLLARD.

RIW/TD/802 Typical ground bearing slab detail:.