Structural Work
96 sources in the library on structural work. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 3 of 3.
- strong RN-NW4UCS
BSI (British Standards Institution)
STATUS: WITHDRAWN on 21 September 2022. BS EN ISO 1461:2009 was published 31 July 2009 and superseded BS EN ISO 1461:1999. It specified the properties and test methods for zinc coatings applied by dipping fabricated iron and steel articles in molten zinc, covering the zinc bath, information the purchaser must supply, safety, inspection and sampling, and coating thickness, appearance, adhesion and corrosion resistance. It did not apply to continuously galvanized sheet or wire, mesh, automatic tube and pipe galvanizing, or products with their own standards such as fasteners (BS EN ISO 10684). It has been replaced by the 2022 edition of BS EN ISO 1461, so a note specifying galvanizing to BS EN ISO 1461:2009 is quoting a withdrawn edition and should be undated or cite the current one. Catalogue page confirms number, title, publication date, withdrawal date, what it supersedes and its scope, but does not name the replacement.
- strong RN-2LJB46
BSI (BSI Knowledge catalogue)
Dated 30 November 2011, this is the UK code of practice for the structural design of low-rise housing without recourse to full engineering design. Its scope covers the stability of the structure, site investigation, and the foundations and ground floor slabs used in construction, with foundations comprising strip footings or trench fill in normal ground being the only types described. Notes in the scope state that BS 8103-1 does not cover basement design (though a single level basement providing a firm platform at ground level may allow the standard to be used for the superstructure above), and that proprietary housing systems and timber, steel or concrete framed houses are outside its scope. This is the standard that sits behind the deemed-to-satisfy foundation and stability rules a domestic builder works to.
- strong RN-7E2J2F
BSI (BSI Knowledge catalogue)
Dated 14 March 2005, this gives recommendations for masonry walls above the ground level damp proof course and for walls between ground floor level and the top of foundation level. It applies to low-rise housing of traditional construction comprising detached, semi-detached and terraced houses and flats with not more than four self-contained dwelling units per floor accessible from one staircase, of not more than three storeys above ground and intended for domestic occupation, subject to the limiting conditions stated in the code. It also covers certain small single storey non-residential buildings such as domestic garages and annexes not exceeding 36 square metres in floor area. It is the reference for masonry wall thickness, buttressing and lateral support in ordinary housing without a bespoke engineering design.
- strong RN-GFUBDV
Royal Institution of Chartered Surveyors
The main built-environment alternative dispute resolution provider a homeowner is likely to meet, useful because statutory adjudication under the Housing Grants, Construction and Regeneration Act 1996 does not apply to contracts with a residential occupier, so a homeowner needs a contractual or voluntary route instead. RICS DRS supplies impartial ADR across the property, construction and land sectors as an alternative to litigation, states it has over 40 years of experience and has handled cases worth billions globally, and selects and assesses each panel member for expertise, impartiality and professionalism. Publishes downloadable application forms per service, a searchable panel, and a Conflict Avoidance Process which produces a report with reasoned but non-binding recommendations, intended to head off a dispute before it becomes one. Also runs ADR education through diplomas and distance and face to face programmes.
- strong RN-N8DL31
Royal Institution of Chartered Surveyors (RICS)
The RICS consumer guide to subsidence, and the source for the figures a homeowner note needs. Subsidence is the downward movement of a buildings foundations caused by changes in the supporting strata, most often shrinkable clay losing moisture in a long dry spell or having water drawn out by trees and bushes, or soil erosion where water from broken pipes softens or washes away sandy, gravelly or chalky ground. RICS cites a Which? estimate that 70 per cent of subsidence claims come from tree roots removing moisture from shrinkable soil. Fewer than 5 per cent of affected properties actually require underpinning, and the Institution of Structural Engineers recommends it be used only as a last resort. Underpinning costs from £10,000 to £75,000 for a typical house and more for larger properties. Alternatives include removing or pruning trees and repairing leaking drains or water mains. RICS advises monitoring cracks for up to 12 months, seeking specialist help immediately if problems appear, checking that insurance covers subsidence, and using RICS members for investigation and claims.
- strong RN-XTSU5N
The Institution of Structural Engineers (IStructE)
The IStructE homeowners guide, Appointing a Structural Engineer for your Domestic Project, first published 2015, ISBN 978-1-906335-28-1, 26 pages. It is written for renovations, extensions and new builds and is the authoritative answer to what a structural engineer does and when one is needed. Chapter 1 introduces structural engineers and the other construction professionals a homeowner meets, and explains that although a builder or trade specialist may offer design services, it is traditional and remains industry standard for a builder to rely on clear technical instructions prepared by independently engaged design professionals. Chapter 2 introduces the relevant regulations, Chapter 3 gives advice tailored to specific project scenarios and Chapter 4 covers engaging a structural engineer. It notes IStructE is incorporated by Royal Charter with rigorous entrance examinations and mandatory continuing professional development, and warns that rules differ between England and Wales, Scotland and Northern Ireland.
- good RN-1QXTQO
Brick Development Association
BDA structural guide last updated March 2023, from the body whose members account for almost 99 per cent of bricks produced in the UK. It states around 20 per cent of the UK housing stock is more than 100 years old and mostly built of brick. It sets a strict repair sequence: survey first to establish whether the structure is stable and identify defects, then establish the cause (mainly foundations, overloading or unwanted water), then decide remedial measures, and only then consider appearance. The survey is in two parts, accurate drawings (now often by drone or 3D laser scan) and a structural and dilapidations survey using pin type tell-tales rather than strips so movement can be measured. On major alterations it warns that removing loadbearing walls redistributes loading and must be designed by a competent person, that removing internal cross walls can destabilise the external walls they tied, and that solutions include piers, a new loadbearing wall alongside, or transferring load to an independent frame, each of which may need new foundations. On openings it warns that widening concentrates load, and that for openings near a wall junction or chimney breast the lintel should be lengthened to tie into the cross wall or chimney breast, possibly with a matching tie at the threshold. On chimney breasts it states removal should only be considered if acceptable structurally because the heavy mass of brickwork is often providing stability, and that sealed flues need ventilation such as an air brick high in the breast and near the top of the stack to avoid condensation. Later sections cover pointing, matching bricks, foundation failure, leaning and bulging walls, cracking, overloading, failures of bricks and water penetration.
- good RN-NWBGX4
CIRIA (Construction Industry Research and Information Association)
The reference for what happens when an excavation goes below the water table, which is the hidden cost driver in basement digs and deep foundations on wet ground. CIRIA C750, Groundwater control: design and practice, second edition, published April 2016, 205 pages, ISBN 978-0-86017-755-5, authors Preene, Roberts and Powrie. Paywalled at GBP 110 excluding VAT (GBP 55 for members) with a minimum order of five copies, so only the catalogue page and a PDF excerpt are public. The page states the core proposition plainly: whenever an excavation is made below the water table there is a risk that it will become unstable or flood unless measures are taken to control groundwater in the surrounding soil. Scope covers the potential effect of groundwater on construction works, groundwater control and dewatering techniques as temporary works, safety management and contractual matters, legal and environmental issues, site investigation requirements, and design methods for groundwater control schemes.
- good RN-BTTT08
CIRIA (Construction Industry Research and Information Association)
The standard reference a structural engineer uses to design an embedded retaining wall, which is what a basement dig or a deep terraced garden retaining structure actually needs. CIRIA C760, Guidance on embedded retaining wall design, published February 2017, 471 pages, ISBN 978-0-86017-764-7, authors Gaba, Hardy, Doughty, Powrie and Selemetas. It is paywalled at GBP 170 excluding VAT (GBP 85 for members) with a minimum order of five copies, so only the catalogue page and a PDF excerpt are public. Scope confirmed on the page: selection and design of VERTICAL EMBEDDED retaining walls to satisfy the Eurocodes, covering temporary and permanent cantilever, anchored, single-propped and multi-propped walls embedded in soft soils, stiff clays, other competent soils and soft rocks. The page also states it clarifies areas of ambiguity and common misunderstandings in applying the Eurocodes to embedded retaining walls and sets out an unambiguous method for applying the Observational Method. Note the scope limit: this is not the reference for a low garden gravity or masonry retaining wall.
- good RN-137MQM
Property Care Association (PCA)
The Property Care Association guide to remedial structural repair, useful as the trade-body counterweight to the assumption that movement means underpinning. It describes crack stitching using profiled stainless steel bars set in resin grout as an effective repair for stone, concrete and brick structures, and lateral restraint systems among the methods for resolving structural problems caused by impact, water ingress or poor building practice. On cavity wall tie corrosion it states new stainless steel ties can be installed either resin fixed or mechanically fixed into the walls, and that defective ties may be isolated, removed or in some circumstances left in place. On underpinning it says the technique was traditionally used but is now less preferred because it is a long and costly process that often required large scale excavations, and that ground stabilisation using injected materials and remedial ground piles now offer lower impact solutions for foundation movement and subsidence. It stresses that structural engineers must supervise repair work so the diagnosis and the solution are correct.
- good RN-FITI8H
The Concrete Society
The index to the Concrete Society technical library and the place to check a concrete claim against an industry-independent source. Four publication families are listed: Technical Reports giving in-depth guidance on design, construction, maintenance and innovation (for example TR43, Post-tensioned concrete floors design handbook, at GBP 85 full price and GBP 51 to members, and Discussion Document DD51 on calcined clay as a supplementary cementitious material, free to all); Good Concrete Guides on practical aspects (GCG8, Concrete practice, and GCG11, Digital monitoring and measurement of fresh concrete); Advice Sheets on specific topics such as no-fines concrete and brushed and tamped surface finishes; and Fingertips, short free reference pages covering masonry densities, cold joints, consistence tolerance and the slump test, floated and trowelled finishes, core testing for compressive strength, delamination of concrete floor surfaces and hot weather concreting. The Society also runs an advisory service of engineers and concrete technologists giving impartial advice to members, including desk studies and site visits. The Fingertips pages are the freely readable part and carry real figures; the Technical Reports are mostly paid.
- good RN-8TA2LQ
The Concrete Society
A free, citable data sheet giving the density ranges a note needs when explaining block types or estimating dead load. Published 3 June 2025 and filed under Buildings, Domestic (low rise). Dense aggregate blocks have a density in the range 1,800 to 2,100 kg/m3. Lightweight aggregate blocks, also called medium dense, are in the range 650 to 1,500 kg/m3. Aircrete blocks are in the range 400 to 900 kg/m3. Concrete bricks are 1,900 to 2,100 kg/m3 for Commons, Facing and Engineering quality, and 1,400 kg/m3 for lightweight bricks. The sheet points onward to the Concrete Block Association and the Autoclaved Aerated Concrete Products Association for more detail.
- fair RN-Y3THH4
Financial Ombudsman Service
The ombudsman's own account of what it sees and how it decides, last updated 24 July 2023, which is a stronger citation than an insurer's marketing page. Confirms that buildings insurance typically responds to accidental damage, weather such as storms, flooding, ground movement such as subsidence, and underground pipes made from pitch fibre. Lists the recurring complaint types: repairs done but the problem not fixed; the insurer insisting on repair where the consumer wants replacement; the insurer deciding the sum insured on buildings or contents is not enough to cover the claim, which it names as underinsurance; the insurer saying the customer carelessly or deliberately failed to give the true rebuild cost of the home or replacement cost of contents and cancelling the policy on that basis; a replacement offered that is not the same as what was lost; and a cash settlement too small to have the repairs done. Links its separate approaches to accidental damage, building warranties, damage to underground pipes, flood damage, gradual damage, home emergency insurance and multiple-occupancy buildings insurance.
- fair RN-BSNXU2
Financial Ombudsman Service
Sets out what happens when an insurer says a homeowner gave wrong information, which is the mechanism behind most declined renovation-related claims, last updated 10 July 2026. Defines misrepresentation as information given carelessly, deliberately or recklessly that was incomplete or misleading, and non-disclosure as leaving out relevant information that was asked about. Lists the insurer's possible remedies: charge more for the policy, retrospectively apply a restriction so an ongoing or future claim is declined, settle a claim proportionately, or avoid the policy so the claim is declined outright. States the legal test the ombudsman applies is the insurer's obligations under the Consumer Insurance (Disclosure and Representations) Act 2012, asking whether the questions were clear and specific, whether the consumer took reasonable care to answer correctly, whether the answer was incorrect or incomplete, and whether the insurer would have acted differently with the correct information. Confirms the complaint route: complain to the firm first, and if it does not send a final response letter within eight weeks, or the response is unsatisfactory, bring the complaint to the ombudsman, whose service is free.
- fair RN-JGN095
Financial Ombudsman Service
Explains the average clause, the mechanism that reduces a payout when a home is insured for less than its rebuild cost, last updated 10 July 2026. States that where a policy contains an average clause the insurer may use it so that the policyholder bears a proportion of any loss or damage if the item was insured for less than its replacement value, and that the insurer applies its own formula. Identifies the two grounds on which the ombudsman upholds such complaints: the insurer tried to apply an average clause that is not actually in the policy, and the insurer applied the average clause without ever having asked the consumer to estimate the full value of the buildings or contents. Also covers complaints where the insurer failed to ask the right question, giving the example of an application asking how much cover do you need when what the insurer wanted was the total value of everything in the home, and where the insurer did not make clear that pre-filled parts of an online form had to be checked for accuracy. Confirms the complaint route requires a formal complaint to the firm first, with the ombudsman available if no final response arrives within eight weeks.
- fair RN-2A8QZI
Northern Ireland Water
NORTHERN IRELAND. NI Water requires a Building Over or Near a Public Sewer Agreement, and its conditions go beyond the England build-over agreement. Drawings must be at a scale of 1:100 or greater and colour code existing public sewers, foul in red, storm in green and combined in magenta, with private drainage in black, plus longitudinal sections showing pipe size, gradient, material, manholes and invert and cover levels to Ordnance Datum Belfast. Where building over the sewer, ONLY SUSPENDED CONCRETE FLOORS are permissible if a concrete floor is proposed. A method statement is required whether or not the pipe is being replaced, and NI Water may require a Structural Engineer's Report at the developer's expense. Critically, where there is any loan or mortgage on the property the LENDER MUST SIGN the agreement before it is returned, and the applicant must hold and provide current home insurance including buildings cover. No work may start until the agreement is authorised and returned. Applications are triaged before payment is requested, and third and subsequent applications on the same sewer leg attract a discount under the Scheme of Charges.