Latest Technical Extra

August 2019 | Issue 25

NHBC Technical Extra

We produce Technical Extra to provide you with detailed updates to NHBC Standards, Building Regulations compliance and current best practice guidance. As well as the latest technical information, Technical Extra will, where relevant, tell you what actions you need to take and by when. You can access the latest and past issues below.

View latest and past editions

Issue 25

Technical Extra Issue 25
August 2019

Includes: Spandrel panels on gable end walls; external ground levels; water ingress issues; use of combustible materials in buildings over 18m; and more.

Issue 24

Technical Extra Issue 24
November 2018

Includes: NHBC Standards 2019 inc. Light Steel Framing; Magnesium Oxide Building Boards; CVPC pipe in sprinkler systems; updated British Standards on roofs; Landfill Tax and more.

Issue 23

Technical Extra Issue 23
January 2018

Includes: NHBC Standards 2018 - What’s New, Guidance and good practice for CQRs, Drainage under suspended floors, Spandrel panels, NHBC Foundation and Fibres in structural floor toppings.

Issue 22

Technical Extra Issue 22
April 2017

Includes: NHBC Standards 2017 (including a new chapter on movement of rendered walls), Part R - electronic communications, Dry-fix verge systems, Overheating in new homes, Balconies and avoiding cladding issues.

Issue 21

Technical Extra Issue 21
October 2016

Includes: NHBC Standards 2017 (including a new chapter on render), pitched roofs, external walls and NHBC OnSite technical assessments.

Issue 20

Technical Extra Issue 20
April 2016

Includes: external render in NHBC Standards, wall lateral restraint straps, British Standards for installation of gas in apartments and in-situ concrete toppings/suspended floors.

Issue 19

Technical Extra Issue 19
November 2015

Includes: NHBC Standards 2016; Chapter 5.4 FAQs; auto fire suppression systems (Wales); new requirements for consumer units; fire safety issues.

Issue 18

Technical Extra Issue 18
July 2015

Includes: NHBC Standards 2016; Housing Standards Review; combustible cladding for multi-storey builds.

Issue 17

Technical Extra Issue 17
February 2015

Includes: Guarding openable windows with low cills; fire protection for proprietary dummy chimneys; weep holes in masonry walls.

Issue 16

Technical Extra Issue 16
November 2014

Includes: Chapter 5.4 'Waterproofing of basements and other below ground structures' | Guidance and good practice - an industry perspective.

Issue 15

Technical Extra Issue 15
October 2014

Includes: The importance of correctly installing cavity trays and DPCs | Regulation 38 of the Building Regulations | Code of practice relating to slating and tiling for pitched roofs and vertical cladding.

Issue 14

Technical Extra Issue 14
July 2014

Includes: Our annual claims review | Key issues around designing, manufacturing and installing windows | Good practice topics | Summary of NHBC Foundation reports.

Issue 13

Technical Extra Issue 13
March 2014

Includes: All you need to know about the updated Part L, the transitional provisions, key changes and practical guidance.

Issue 12

Technical Extra Issue 12
October 2013

Includes: The NHBC Standards 2014 edition, introducing 3.2 'mechanical ventilation with heat recovery' and MVHR - getting it right, from the start.

Issue 11

Technical Extra Issue 11
September 2013

Includes: Updates to Approved Documents A, C and L, guidance on Part M, commissioning gas installations and the impact of relatively simple defects.

Issue 10

Technical Extra Issue 10
June 2013

Includes: Basements, Foundation Depth Calculator app, Approved Document Regulation 7, Construction Products Regulations, Juliette balconies and British Woodwork Federation Stair Scheme.

Issue 9

Technical Extra Issue 9
March 2013

Includes: Pitched roofs, protecting steel from corrosion and new MVHR standards.

Issue 8

Technical Extra Issue 8
November 2012

Includes: A detailed summary of the key changes in NHBC Standards 2013.

Issue 7

Technical Extra Issue 7
July 2012

Includes: Articles on aircrete blocks, FWMA and multipoint door locks.

Issue 6

Technical Extra Issue 6
February 2012

Includes: An update on low or zero technologies (NHBC Standards Chapter 3.1) and two articles relating to façades.

Issue 5

Technical Extra Issue 5
November 2011

Includes: The revised NHBC Standards Chapter 7.2 on 'Pitched Roofs'. The revised Chapter came into force for all new homes with foundations concreted on or after 1 January 2012.

Issue 4

Technical Extra Issue 4
October 2011

Includes: Updates on pitched roofs, The Flood and Water Management Act, guttering fixings and hardcore selection.

Issue 3

Technical Extra Issue 3
September 2011

Includes: The challenges for the industry in complying with Part L of the Building Regulations in England and Wales.

Issue 2

Technical Extra Issue 2
April 2011

Includes: Articles on basements and waterproofing and details of the updated Code of Practice (CoP) on 'The Definition of Waste'

Issue 1

Technical Extra Issue 1
February 2011

Includes: Our launch issue of Technical Extra included articles on pitched roofs and the Flood and Water Management Act.

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