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NHBC
Standards
2017
Effective from 1 January 2017
Welcome to the
NHBC Standards 2017
This edition will be effective for every new home registered with NHBC where
foundations are begun on or after the 1st January 2017.
2016 saw the introduction of a brand new format for the NHBC Standards, making
them easier to use and more accessible than ever before. Feedback from our own
staff and builders has been very encouraging and we are delighted that the NHBC
Standards continues to be the ‘go to’ document for technical guidance for the
house-building industry.
Building on this success, Standards 2017 includes a number of technical updates
and revisions, including the new Chapter 6.11 ‘Render’. This traditional building
method is used in the house-building industry to provide a modern and clean look
to new homes, but it is important that render is correctly detailed to remain
NHBC Standards 2017 Effective from 1 January 2
Welcome to the NHBC Standards 2017 This edition w
Contents 2017 Contents Welcome – Part 1
Contact us 2017 How we can help you Useful co
What’s changed? 2017 What’s changed? Major te
The Standards and Technical Requirements CHAPTER
1 The Standards and Technical Requirements 2017 C
The Standards and Technical Requirements 2017
3 The Standards and Technical Requirements 2017 C
The Standards and Technical Requirements 2017
Concrete and its reinforcement CHAPTER 3.1 This
1 Concrete and its reinforcement 2017 CHAPTER 3.1
Concrete and its reinforcement 2017
3 Concrete and its reinforcement 2017 CHAPTER 3.1
Concrete and its reinforcement 2017
5 Concrete and its reinforcement 2017 CHAPTER 3.1
Concrete and its reinforcement 2017
7 Concrete and its reinforcement 2017 CHAPTER 3.1
Concrete and its reinforcement 2017
9 Concrete and its reinforcement 2017 CHAPTER 3.1
Concrete and its reinforcement 2017
Cold weather working CHAPTER 3.2 This chapter gi
1 Cold weather working 2017 CHAPTER 3.2 Complia
Cold weather working 2017 CHAP
3 Cold weather working 2017 CHAPTER 3.2 Admixtu
Timber preservation (natural solid timber) CHAPT
1 Timber preservation (natural solid timber) 2017
Timber preservation (natural solid timber) 2017
3 Timber preservation (natural solid timber) 2017
Land quality – managing ground conditions CHAPTE
1 Land quality – managing ground conditions 2017
Land quality – managing ground conditions 2017
3 Land quality – managing ground conditions 2017
Land quality – managing ground conditions 2017
5 Land quality – managing ground conditions 2017
Land quality – managing ground conditions 2017
7 Land quality – managing ground conditions 2017
Land quality – managing ground conditions 2017
Building near trees CHAPTER 4.2 This chapter giv
1 Building near trees 2017 CHAPTER 4.2 Introduct
Building near trees 2017 CHAPTER 4.
3 Building near trees 2017 CHAPTER 4.2 The effe
Building near trees 2017 CHAPTER 4.
5 Building near trees 2017 CHAPTER 4.2 Table 3
Building near trees 2017 CHAPTER 4.
7 Building near trees 2017 CHAPTER 4.2 Method
Building near trees 2017 CHAPTER 4.
9 Building near trees 2017 CHAPTER 4.2 Raft fo
Building near trees 2017 CHAPTER 4.
11 Building near trees 2017 CHAPTER 4.2 Potent
Building near trees 2017 CHAPTER 4.
13 Building near trees 2017 CHAPTER 4.2 New dra
Building near trees 2017 CHAPTER 4.
15 Building near trees 2017 CHAPTER 4.2 Chart
Building near trees 2017 CHAPTER 4.
17 Building near trees 2017 CHAPTER 4.2 Table
Building near trees 2017 CHAPTER 4.
19 Building near trees 2017 CHAPTER 4.2 Table
Building near trees 2017 CHAPTER 4.
21 Building near trees 2017 CHAPTER 4.2 Table
Building near trees 2017 CHAPTER 4.
23 Building near trees 2017 CHAPTER 4.2 Step 4
Building near trees 2017 CHAPTER 4.
Strip and trench fill foundations CHAPTER 4.3 Th
1 Strip and trench fill foundations 2017 CHAPTER
Strip and trench fill foundations 2017
3 Strip and trench fill foundations 2017 CHAPTER
Strip and trench fill foundations 2017
5 Strip and trench fill foundations 2017 CHAPTER
Strip and trench fill foundations 2017
Raft, pile, pier and beam foundations CHAPTER 4.
1 Raft, pile, pier and beam foundations 2017 CHAP
Raft, pile, pier and beam foundations 2017
3 Raft, pile, pier and beam foundations 2017 CHAP
Raft, pile, pier and beam foundations 2017
5 Raft, pile, pier and beam foundations 2017 CHAP
Raft, pile, pier and beam foundations 2017
Vibratory ground improvement techniques CHAPTER
1 Vibratory ground improvement techniques 2017 CH
Vibratory ground improvement techniques 2017
3 Vibratory ground improvement techniques 2017 CH
Vibratory ground improvement techniques 2017
5 Vibratory ground improvement techniques 2017 CH
Vibratory ground improvement techniques 2017
7 Vibratory ground improvement techniques 2017 CH
Vibratory ground improvement techniques 2017
9 Vibratory ground improvement techniques 2017 CH
Vibratory ground improvement techniques 2017
11 Vibratory ground improvement techniques 2017 C
Substructure and ground-bearing floors CHAPTER 5
1 Substructure and ground-bearing floors 2017 CHA
Substructure and ground-bearing floors 2017
3 Substructure and ground-bearing floors 2017 CHA
Substructure and ground-bearing floors 2017
5 Substructure and ground-bearing floors 2017 CHA
Substructure and ground-bearing floors 2017
7 Substructure and ground-bearing floors 2017 CHA
Substructure and ground-bearing floors 2017
9 Substructure and ground-bearing floors 2017 CHA
Substructure and ground-bearing floors 2017
Suspended ground floors CHAPTER 5.2 This chapter
1 Suspended ground floors 2017 CHAPTER 5.2 Comp
Suspended ground floors 2017
3 Suspended ground floors 2017 CHAPTER 5.2 Ther
Suspended ground floors 2017
Drainage below ground CHAPTER 5.3 This chapter g
1 Drainage below ground 2017 CHAPTER 5.3 Compli
Drainage below ground 2017
3 Drainage below ground 2017 CHAPTER 5.3 Draina
Drainage below ground 2017
5 Drainage below ground 2017 CHAPTER 5.3 All a
Drainage below ground 2017
7 Drainage below ground 2017 CHAPTER 5.3 Manho
Drainage below ground 2017
9 Drainage below ground 2017 CHAPTER 5.3 Conne
Drainage below ground 2017
11 Drainage below ground 2017 CHAPTER 5.3 Fiel
Drainage below ground 2017
13 Drainage below ground 2017 CHAPTER 5.3 Wher
Drainage below ground 2017
15 Drainage below ground 2017 CHAPTER 5.3 Move
Drainage below ground 2017
Waterproofing of basements and other below ground
1 Waterproofing of basements and other below grou
Waterproofing of basements and other below ground
3 Waterproofing of basements and other below grou
Waterproofing of basements and other below ground
5 Waterproofing of basements and other below grou
Waterproofing of basements and other below ground
7 Waterproofing of basements and other below grou
Waterproofing of basements and other below ground
External masonry walls CHAPTER 6.1 This chapter
1 External masonry walls 2017 CHAPTER 6.1 Compl
External masonry walls 2017
3 External masonry walls 2017 CHAPTER 6.1 Seala
External masonry walls 2017
5 External masonry walls 2017 CHAPTER 6.1 Fros
External masonry walls 2017
7 External masonry walls 2017 CHAPTER 6.1 6.1 W
External masonry walls 2017
9 External masonry walls 2017 CHAPTER 6.1 Concr
External masonry walls 2017
11 External masonry walls 2017 CHAPTER 6.1 Sto
External masonry walls 2017
13 External masonry walls 2017 CHAPTER 6.1 Cor
External masonry walls 2017
15 External masonry walls 2017 CHAPTER 6.1 Sep
External masonry walls 2017
17 External masonry walls 2017 CHAPTER 6.1 Joi
External masonry walls 2017
19 External masonry walls 2017 CHAPTER 6.1 Tab
External masonry walls 2017
21 External masonry walls 2017 CHAPTER 6.1
External masonry walls 2017
23 External masonry walls 2017 CHAPTER 6.1 Hand
External timber framed walls CHAPTER 6.2 This ch
1 External timber framed walls 2017 CHAPTER 6.2
External timber framed walls 2017
3 External timber framed walls 2017 CHAPTER 6.2
External timber framed walls 2017
5 External timber framed walls 2017 CHAPTER 6.2
External timber framed walls 2017
7 External timber framed walls 2017 CHAPTER 6.2
External timber framed walls 2017
9 External timber framed walls 2017 CHAPTER 6.2
External timber framed walls 2017
11 External timber framed walls 2017 CHAPTER 6.2
External timber framed walls 2017
Internal walls CHAPTER 6.3 This chapter gives gu
1 Internal walls 2017 CHAPTER 6.3 Compliance 6.
Internal walls 2017 CHAPTER 6.3 2 Bricks B
3 Internal walls 2017 CHAPTER 6.3 Lateral rest
Internal walls 2017 CHAPTER 6.3 4 When con
5 Internal walls 2017 CHAPTER 6.3 Where fire-r
Internal walls 2017 CHAPTER 6.3 6 In masonr
7 Internal walls 2017 CHAPTER 6.3 Blockwork pa
Internal walls 2017 CHAPTER 6.3 8 Table 3:
9 Internal walls 2017 CHAPTER 6.3 Construction
Timber and concrete upper floors CHAPTER 6.4 Thi
1 Timber and concrete upper floors 2017 CHAPTER 6
Timber and concrete upper floors 2017
3 Timber and concrete upper floors 2017 CHAPTER 6
Timber and concrete upper floors 2017
5 Timber and concrete upper floors 2017 CHAPTER 6
Timber and concrete upper floors 2017
7 Timber and concrete upper floors 2017 CHAPTER 6
Timber and concrete upper floors 2017
9 Timber and concrete upper floors 2017 CHAPTER 6
Timber and concrete upper floors 2017
11 Timber and concrete upper floors 2017 CHAPTER
Timber and concrete upper floors 2017
13 Timber and concrete upper floors 2017 CHAPTER
Timber and concrete upper floors 2017
15 Timber and concrete upper floors 2017 CHAPTER
Timber and concrete upper floors 2017
Steelwork CHAPTER 6.5 This chapter gives guidanc
1 Steelwork 2017 CHAPTER 6.5 Compliance 6.5.1
Steelwork 2017 CHAPTER 6.5 2 Table 2: Size
3 Steelwork 2017 CHAPTER 6.5 AA B vo
Steelwork 2017 CHAPTER 6.5 4 Table 4: Envir
5 Steelwork 2017 CHAPTER 6.5 Where shop-applie
Steelwork 2017 CHAPTER 6.5 6 Table 7: Size
7 Steelwork 2017 CHAPTER 6.5 Conditions for th
Staircases CHAPTER 6.6 This chapter gives guidan
1 Staircases 2017 CHAPTER 6.6 Compliance 6.6.1
Staircases 2017 CHAPTER 6.6 2 Differential mo
3 Staircases 2017 CHAPTER 6.6 Staircases shoul
Staircases 2017 CHAPTER 6.6 4 Tapered treads
5 Staircases 2017 CHAPTER 6.6 Where glazing fo
Staircases 2017 CHAPTER 6.6 6 Timber and wood-
7 Staircases 2017 CHAPTER 6.6 Formwork should
Doors, windows and glazing CHAPTER 6.7 This chap
1 Doors, windows and glazing 2017 CHAPTER 6.7 C
Doors, windows and glazing 2017
3 Doors, windows and glazing 2017 CHAPTER 6.7
Doors, windows and glazing 2017
5 Doors, windows and glazing 2017 CHAPTER 6.7 G
Doors, windows and glazing 2017
7 Doors, windows and glazing 2017 CHAPTER 6.7 S
Doors, windows and glazing 2017
9 Doors, windows and glazing 2017 CHAPTER 6.7 M
Fireplaces, chimneys and flues CHAPTER 6.8 This
1 Fireplaces, chimneys and flues 2017 CHAPTER 6.8
Fireplaces, chimneys and flues 2017
3 Fireplaces, chimneys and flues 2017 CHAPTER 6.8
Fireplaces, chimneys and flues 2017
5 Fireplaces, chimneys and flues 2017 CHAPTER 6.8
Fireplaces, chimneys and flues 2017
7 Fireplaces, chimneys and flues 2017 CHAPTER 6.8
Fireplaces, chimneys and flues 2017
9 Fireplaces, chimneys and flues 2017 CHAPTER 6.8
Fireplaces, chimneys and flues 2017
11 Fireplaces, chimneys and flues 2017 CHAPTER 6.
Fireplaces, chimneys and flues 2017
13 Fireplaces, chimneys and flues 2017 CHAPTER 6.
Fireplaces, chimneys and flues 2017
15 Fireplaces, chimneys and flues 2017 CHAPTER 6.
Fireplaces, chimneys and flues 2017
17 Fireplaces, chimneys and flues 2017 CHAPTER 6.
Fireplaces, chimneys and flues 2017
19 Fireplaces, chimneys and flues 2017 CHAPTER 6.
Fireplaces, chimneys and flues 2017
21 Fireplaces, chimneys and flues 2017 CHAPTER 6.
Curtain walling and cladding CHAPTER 6.9 This ch
1 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
3 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
5 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
7 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
9 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
11 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
13 Curtain walling and cladding 2017 CHAPTER 6.9
Curtain walling and cladding 2017
Light steel framed walls and floors CHAPTER 6.10
1 Light steel framed walls and floors 2017 CHAPTE
Light steel framed walls and floors 2017
3 Light steel framed walls and floors 2017 CHAPTE
Light steel framed walls and floors 2017
5 Light steel framed walls and floors 2017 CHAPTE
Light steel framed walls and floors 2017
7 Light steel framed walls and floors 2017 CHAPTE
Light steel framed walls and floors 2017
9 Light steel framed walls and floors 2017 CHAPTE
Light steel framed walls and floors 2017
11 Light steel framed walls and floors 2017 CHAPT
Light steel framed walls and floors 2017
13 Light steel framed walls and floors 2017 CHAPT
Render CHAPTER 6.11 This chapter gives guidance
1 Render 2017 CHAPTER 6.11 Introduction This cha
Render 2017 CHAPTER 6.11 2 Table 1: P
3 Render 2017 CHAPTER 6.11 Backgrounds 6.11.4 B
Render 2017 CHAPTER 6.11 4 Areas of t
5 Render 2017 CHAPTER 6.11 Where significant di
Render 2017 CHAPTER 6.11 6 Where enh
7 Render 2017 CHAPTER 6.11 Surfaces should be
Render 2017 CHAPTER 6.11 8 Abutments
9 Render 2017 CHAPTER 6.11 Ancillary items Sto
Render 2017 CHAPTER 6.11 10 Render ont
11 Render 2017 CHAPTER 6.11 Board backgrounds
Flat roofs and balconies CHAPTER 7.1 This chapte
1 Flat roofs and balconies 2017 CHAPTER 7.1 Defi
Flat roofs and balconies 2017
3 Flat roofs and balconies 2017 CHAPTER 7.1 Jo
Flat roofs and balconies 2017
5 Flat roofs and balconies 2017 CHAPTER 7.1 The
Flat roofs and balconies 2017
7 Flat roofs and balconies 2017 CHAPTER 7.1 Th
Flat roofs and balconies 2017
9 Flat roofs and balconies 2017 CHAPTER 7.1 Det
Flat roofs and balconies 2017
11 Flat roofs and balconies 2017 CHAPTER 7.1 Ac
Flat roofs and balconies 2017
13 Flat roofs and balconies 2017 CHAPTER 7.1 W
Flat roofs and balconies 2017
Pitched roofs CHAPTER 7.2 This chapter gives gui
1 Pitched roofs 2017 CHAPTER 7.2 Compliance 7.2
Pitched roofs 2017 CHAPTER 7.2 2 Structura
3 Pitched roofs 2017 CHAPTER 7.2 Table 2: Basic
Pitched roofs 2017 CHAPTER 7.2 4 Durability
5 Pitched roofs 2017 CHAPTER 7.2 Joints and conn
Pitched roofs 2017 CHAPTER 7.2 6 Restraint 7
7 Pitched roofs 2017 CHAPTER 7.2 Bracing for tru
Pitched roofs 2017 CHAPTER 7.2 8 Bracing fo
9 Pitched roofs 2017 CHAPTER 7.2 Strutting for a
Pitched roofs 2017 CHAPTER 7.2 10 For dorme
11 Pitched roofs 2017 CHAPTER 7.2 Ventilation, v
Pitched roofs 2017 CHAPTER 7.2 12 5mm
13 Pitched roofs 2017 CHAPTER 7.2 The thermal
Pitched roofs 2017 CHAPTER 7.2 14 Battens 7.2
15 Pitched roofs 2017 CHAPTER 7.2 Table 10: Sta
Pitched roofs 2017 CHAPTER 7.2 16 When fixi
17 Pitched roofs 2017 CHAPTER 7.2 Undercloak sh
Pitched roofs 2017 CHAPTER 7.2 18 Weathering
19 Pitched roofs 2017 CHAPTER 7.2 Flat roof int
Pitched roofs 2017 CHAPTER 7.2 20 Copings Co
21 Pitched roofs 2017 CHAPTER 7.2 Lead-lined va
Internal services CHAPTER 8.1 This chapter gives
1 Internal services 2017 CHAPTER 8.1 Compliance
Internal services 2017 CHAPTER 8.1 2
3 Internal services 2017 CHAPTER 8.1 Cold water
Internal services 2017 CHAPTER 8.1 4
5 Internal services 2017 CHAPTER 8.1 Air admitt
Internal services 2017 CHAPTER 8.1 6
7 Internal services 2017 CHAPTER 8.1 Space heat
Internal services 2017 CHAPTER 8.1 8
9 Internal services 2017 CHAPTER 8.1 min.
Internal services 2017 CHAPTER 8.1 10
Low or zero carbon technologies CHAPTER 8.2 This
1 Low or zero carbon technologies 2017 CHAPTER 8.
Low or zero carbon technologies 2017
3 Low or zero carbon technologies 2017 CHAPTER 8.
Low or zero carbon technologies 2017
5 Low or zero carbon technologies 2017 CHAPTER 8.
Low or zero carbon technologies 2017
7 Low or zero carbon technologies 2017 CHAPTER 8.
Mechanical ventilation with heat recovery CHAPTE
1 Mechanical ventilation with heat recovery 2017
Mechanical ventilation with heat recovery 2017
3 Mechanical ventilation with heat recovery 2017
Mechanical ventilation with heat recovery 2017
5 Mechanical ventilation with heat recovery 2017
A consistent approach to finishes CHAPTER 9.1 Th
1 A consistent approach to finishes 2017 CHAPTER
A consistent approach to finishes 2017
3 A consistent approach to finishes 2017 CHAPTER
A consistent approach to finishes 2017
5 A consistent approach to finishes 2017 CHAPTER
A consistent approach to finishes 2017
7 A consistent approach to finishes 2017 CHAPTER
Wall and ceiling finishes CHAPTER 9.2 This chapt
1 Wall and ceiling finishes 2017 CHAPTER 9.2 Co
Wall and ceiling finishes 2017
3 Wall and ceiling finishes 2017 CHAPTER 9.2 V
Wall and ceiling finishes 2017
5 Wall and ceiling finishes 2017 CHAPTER 9.2 Ce
Floor finishes CHAPTER 9.3 This chapter gives gu
1 Floor finishes 2017 CHAPTER 9.3 Compliance 9.
Floor finishes 2017 CHAPTER 9.3 2 Non-str
3 Floor finishes 2017 CHAPTER 9.3 Ceramic, conc
Floor finishes 2017 CHAPTER 9.3 4 Wood fin
5 Floor finishes 2017 CHAPTER 9.3 Screeds or c
Floor finishes 2017 CHAPTER 9.3 6 Chipboa
Finishings and fitments CHAPTER 9.4 This chapter
1 Finishings and fitments 2017 CHAPTER 9.4 Comp
Finishings and fitments 2017
3 Finishings and fitments 2017 CHAPTER 9.4 Prot
Painting and decorating CHAPTER 9.5 This chapter
1 Painting and decorating 2017 CHAPTER 9.5 Comp
Painting and decorating 2017
3 Painting and decorating 2017 CHAPTER 9.5 Whe
Garages CHAPTER 10.1 This chapter gives guidance
1 Garages 2017 CHAPTER 10.1 Compliance 10.1.1
Garages 2017 CHAPTER 10.1 2 Adjacent st
3 Garages 2017 CHAPTER 10.1 Garage walls 10.1.5
Garages 2017 CHAPTER 10.1 4
5 Garages 2017 CHAPTER 10.1 Detailing at abutm
Drives, paths and landscaping CHAPTER 10.2 This
1 Drives, paths and landscaping 2017 CHAPTER 10.2
Drives, paths and landscaping 2017
3 Drives, paths and landscaping 2017 CHAPTER 10.2
Drives, paths and landscaping 2017
5 Drives, paths and landscaping 2017 CHAPTER 10.2
Drives, paths and landscaping 2017
7 Drives, paths and landscaping 2017 CHAPTER 10.2
NHBC is authorised by the Prudential Regulation A