5117 ground floor slab and concrete nhbc standards

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5.1.17 Ground floor slab and concrete - NHBC Standards ...

05-01-2017  Ground-bearing floors shall be of adequate strength and durability, and use concrete mixed and reinforced as necessary to support floor loads safely and resist chemical and frost action. Ground-bearing concrete floor slabs should be at least 100mm thick, including monolithic screed where appropriate. BRE Digest 522 Parts 1 2 - Hardcore for ...

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Substructure and ground-bearing floors - NHBC Standards

5.1.17 Ground floor slab and concrete 07 5.1.18 Laying the ground-bearing floor slab 08 5.1.19 Damp proof course 08 5.1.20 Damp proofing concrete floors 09 5.1.21 Thermal insulation 09 5.1.22 Installation of insulation 10 5.1.23 Further information 10 This chapter gives guidance on meeting the Technical Reuirements and

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3.1.6 Concrete specification - NHBC Standards 2021 NHBC ...

03-01-2017  House and garage ground floor slabs: - Fully or nominally reinforced, either ground bearing, suspended or over sub-floor voids. RC35: ST5 (2) S2: Superstructure General reinforced concrete exposure class(3) to BS8500-1: - Nominal cover to reinforcement of 35mm (which is the minimum cover of 25mm plus an allowance in design for deviation of 10mm).

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5.4.3 Waterproofing - NHBC Standards 2021 NHBC Standards 2021

5.1.17 Ground floor slab and concrete; 5.1.18 Laying the ground-bearing floor slab; ... Alternatively, where the builder has demonstrated that the water table is permanently below the underside of the lowest floor slab, ... NHBC Standards 2021.

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9.3.5 Ceramic, concrete, terrazzo ... - NHBC Standards 2021

5.1.17 Ground floor slab and concrete; 5.1.18 Laying the ground-bearing floor slab; ... 5.2.7 Construction of suspended concrete ground floors; 5.2.8 Transfer of loads: timber floors; 5.2.9 Thermal insulation and cold bridging; ... NHBC Standards 2021.

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NHBC Risk Guide Ground bearing floor slabs

Is a ground bearing slab suitable? Yes / No If no, suggest considering an alternative option NHBC Risk Guide Ground bearing floor slabs (Revised May 2020) (Refer to BRE Digest 522, SE 44, TE 04, TE 109, BRE 211, BRE Thermal insulation avoiding risks, Standards Chapter 5.1) R3 Materials requirement.

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5.1.20 Damp proofing concrete floors - NHBC Standards 2018

05-01-2020  5.1.20 Damp proofing concrete floors Ground-bearing floors shall resist the passage of moisture to the inside of the home. Ground-bearing concrete floor slabs should be protected against ground moisture by providing a continuous membrane.

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HARDCORE FOR SUPPORTING GROUND FLOORS OF BUILDINGS -

ground layers) in order to support a ground-bearing floor slab (Figure 1). Typical of older buildings, the term also refers to material used to support an ‘oversite’ concrete slab, which carries sleeper walls beneath a suspended timber floor. As such, the hardcore must provide a firm, dry, level base, at an appropriate height.

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5.4.4 Ground conditions - NHBC Standards 2021 NHBC ...

NHBC may request investigation and a report of the ground conditions where the below ground waterproofed structure: retains more than 600mm of ground, measured from the top of the retained ground to the lowest finished floor level

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NHBC Risk Guide Ground bearing floor slabs

Is a ground bearing slab suitable? Yes / No If no, suggest considering an alternative option NHBC Risk Guide Ground bearing floor slabs (Revised May 2020) (Refer to BRE Digest 522, SE 44, TE 04, TE 109, BRE 211, BRE Thermal insulation avoiding risks, Standards Chapter 5.1) R3 Materials requirement.

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NHBC Standards 2008

Ground bearing concrete floor slabs should be protected against ground moisture by providing a continuous membrane, details of which are given in the Materials section. Care should be taken not to trap moisture when a combination of damp proofing and vapour control layers are used.

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Precast Concrete Floor Planks to Ground Floors - NHBC

n NHBC Standards clause 5.2.10 refers to the provision of damp-proofing to suspended precast floors and the provision of a minimum 150mm void and under floor ventilation. n On sites with shrinkable soil a ventilated void should be formed under the slab to accommodate possible ground swell.

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Part 5 Substructure and ground floors Chapter 5

statutory requirements. NHBC requires ground floors to be ... concrete suspended ground floors shall ... Items to be taken into account include: (a) insulation placed below the floor slab: Insulation below the ground floor slab should: • be placed on a suitable compacted and

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HARDCORE FOR SUPPORTING GROUND FLOORS OF BUILDINGS - NHBC

ground layers) in order to support a ground-bearing floor slab (Figure 1). Typical of older buildings, the term also refers to material used to support an ‘oversite’ concrete slab, which carries sleeper walls beneath a suspended timber floor. As such, the hardcore must provide a firm, dry, level base, at an appropriate height.

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In Situ Concrete Suspended Ground Floors - NHBC

In-situ concrete suspended ground floors (December 2008) (First issue) TECHNICAL GUIDANCE 5.2/01 Sketch A Sketch B DPM turned back over top of slab DPM cut off at bottom of floor slab Page 1 of 1 HB2851 01/20 NHBC, NHBC House, Davy Avenue, Knowlhill, Milton Keynes, Bucks MK5

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NHBC Technical Standards NHBC

Latest News. NHBC Standards 2021 come into force for new homes where the foundations are started on or after 1 January 2021. Check out what’s new and see the new version of NHBC Standards Plus which contains supplementary guidance and 3D visuals to help you interpret and apply the Standards.

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NHBC Standards 2010

garage floors not designed as suspended and not reinforced ; GEN3: ST4: S2: house and garage ground floor slabs fully or nominally reinforced, either ground bearing, suspended or over sub-floor voids; RC35 : ST5 2: S2 : Superstructure. general reinforced concrete exposure class 3 to BS 8500-1

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Concrete and its reinforcement

Garage floors not designed as suspended and not reinforced. GEN3 ST4 S2 House and garage ground floor slabs: – Fully or nominally reinforced, either ground bearing, suspended or over sub-floor voids. RC35 ST5(2) S2 Superstructure General reinforced concrete exposure class(3) to BS8500-1:

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Minimum Thickness of Concrete Elements Heaton

22-07-2020  Minimum Thickness Of Concrete Slabs A slab is defined as a member where the panel dimension is not less than 5 times the overall slab thickness. Eurocode 2 states minimum thickness for floor slabs in buildings is 125mm. Other countries may use different minimums depending on their national standards.

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NHBC Standards 2011

For details of reinforcement for suspended ground floor slabs, reference should be made to Chapter 5.2 'Suspended ground floors' (Design). ... When ordering ready-mixed concrete all requirements according to the design, including reference to Appendix 2.1-A, ... shall be carried out to the full satisfaction of NHBC ...

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NHBC Standards 2010

garage floors not designed as suspended and not reinforced ; GEN3: ST4: S2: house and garage ground floor slabs fully or nominally reinforced, either ground bearing, suspended or over sub-floor voids; RC35 : ST5 2: S2 : Superstructure. general reinforced concrete exposure class 3 to BS 8500-1

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Concrete and its reinforcement

Garage floors not designed as suspended and not reinforced. GEN3 ST4 S2 House and garage ground floor slabs: – Fully or nominally reinforced, either ground bearing, suspended or over sub-floor voids. RC35 ST5(2) S2 Superstructure General reinforced concrete exposure class(3) to BS8500-1:

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Cracking in homes - NHBC

ground settlement. Shrinkage Shrinkage occurs during the initial drying out of a home. Many of the materials used to build a home (such as mortar, plaster and concrete) contain a lot of water when they are built-in and can shrink as they dry out. This may lead to some minor cracks in walls and floors as your new home fully dries out over

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Monmouthshire County Council

Ground floors Ground bearing solid concrete floors Guidance Diagram 9: Typical section through a ground bearing solid concrete floor and foundation Guidance Table 5: Examples of insulation for ground bearing floor slabs Suspended reinforced in-situ concrete ground floor slab supported on

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Jabfloor Insulation Below Ground Supported Slab

Jablite Floor Insulation for use below slab in solid ground floors .Certificate number 87/1796 This Certificate covers Grades 70, 100 and 150. NHBC Approved NHBC accepts the use of Jablite Floor Insulation, provided it is installed, used and maintained in accordance with the BBA Certificate, in relation to NHBC Standards, Chapters 5.1

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BUILDING REGULATIONS GUIDANCE NOTE NHBC BUILDING

provide practical advice to NHBC customers on how to achieve compliance with the functional requirements of the regulations and give further guidance on the options offered in the Approved Documents. For further advice, please contact an NHBC surveyor on 0844 633 1000 and ask for ‘Building Control’. Parking space/Driveway 900 mm 2100 mm ...

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TECHNICAL MANUAL - LABC Warranty

Concrete slab 100mm minimum thickness Ground bearing floor - insulation above slab Note: If ground conditions consist of clay soils and trees that are, were, or are likely to be present, a suspended floor construction should be used Influence of trees and clay Ground bearing slabs should not be used in ground conditions where heave can occur or ...

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Minimum Thickness of Concrete Elements Heaton

22-07-2020  Minimum Thickness Of Concrete Slabs A slab is defined as a member where the panel dimension is not less than 5 times the overall slab thickness. Eurocode 2 states minimum thickness for floor slabs in buildings is 125mm. Other countries may use different minimums depending on their national standards.

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Glidevale Ground Floor Protection

Can be used for solid ground floor slabs and for suspended concrete or timber floors. Can be used to meet the requirements of Building Regulations in the UK and Ireland (see Technical requirements). Certification The performance of Protect GDB10 PLUS membrane has been independently assessed and certified by BM TRADA

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