Communicating Information - Survey Order (Interior)


Roof space:

* Access to all parts, construction type - traditional or trussed
* Evidence of moisture due to condensation - ventilation at eaves, ridge, etc.
* Evidence of water penetration - chimney flashings, abutments and valleys
* Insulation - type and quantity
* Party wall in semi-detached and terraced dwellings - suitability as fire barrier
* Plumbing - adequacy of storage cistern, insulation, overflow function

Floors:

* Construction - timber, pre-cast or cast in-situ concrete? Finish condition?
* Timber ground floor - evidence of dampness, rot, woodworm, ventilation, dpcs
* Timber upper floor stability, ie. wall fixing, strutting, joist size, woodworm, span and loading

Stairs:

* Type of construction and method of fixing - built in-situ or preformed
* Soffit, re. fire protection (plasterboard?)
* Balustrading - suitability and stability
* Safety - adequate screening, balusters, handrail, pitch angle, open tread, tread wear

Finishes:

* General de ' cor, i.e. paint and wallpaper condition - damaged, faded
* Woodwork/joinery - condition, defects, damage, paintwork
* Plaster - ceiling (plasterboard or lath and plaster?) - condition and stability
* Plaster - walls - render and plaster or plasterboard, damage and quality of finish
* Staining - plumbing leaks (ceiling), moisture penetration (wall openings), rising damp
* Fittings and ironmongery - adequacy and function, weather exclusion and security

Supplementary enquiries should determine the extent of additional building work, particularly since the planning threshold of 1948. Check for planning approvals, permitted development and Building Regulation approvals, exemptions and completion certificates.

Services - apart from a cursory inspection to ascertain location and suitability of system controls, these areas are highly specialised and should be surveyed by those appropriately qualified.

Communicating Information - Survey Order (Exterior)


Estate and garden:

* Location and establishment of boundaries
* Fences, gates and hedges - material, condition and suitability
* Trees - type and height, proximity to building
* Pathways and drives - material and condition
* Outbuildings - garages, sheds, greenhouses, barns, etc.
* Proximity of water courses

Roof:

* Tile type, treatment at ridge, hips, verge and valleys
* Age of covering, repairs, replacements, renewals, general condition, defects and growths
* Eaves finish, type and condition
* Gutters - material, size, condition, evidence of leakage
* Rainwater downpipes as above
* Chimney - dpcs, flashings, flaunching, pointing, signs of movement
* Flat roofs - materials, repairs, abutments, flashings and drainage

Walls:

* Materials - type of brick, rendering, cladding, etc., condition and evidence of repairs
* Solid or cavity construction, if cavity extent of insulation and type
* Pointing of masonry, painting of rendering and cladding
* Air brick location, function and suitability
* Dpc, material and condition, position relative to ground level
* Windows and doors, material, signs of rot or damage, original or replacement, frame seal
* Settlement - signs of cracking, distortion of window and door frames - specialist report

Drainage:

Abuilding surveyormay provide a general report on the condition of the drainage and sanitation installation. However, a full test for leakage and determination of self-cleansing and flow conditions to include fibreoptic scope examination is undertaken as a specialist survey.

Communicating Information - Survey Preliminaries

Established Procedure † the interested purchaser engages a building surveyor. UK Government Requirements † the seller to provide a property/ home information pack (HIP) which can include `A survey report on the condition of the property, including requirements for urgent or significant repairs . . .'.

Survey document preliminaries:

* Title and address of property
* Client's name, address and contacts
* Survey date and time
* Property status † freehold, leasehold or commonhold
* Occupancy † occupied or vacant. If vacant, source of keys
* Extent of survey, e.g. full structural + services reports
* Specialists in attendance, e.g. electrician, heating engineer, etc.
* Age of property (approx. if very dated or no records)
* Disposition of rooms, i.e. number of bedrooms, etc.
* Floor plans and elevations if available
* Elevation (flooding potential) and orientation (solar effect)
* Estate/garden area and disposition if appropriate
* Means of access † roads, pedestrian only, rights of way Survey tools and equipment:
* Drawings + estate agent's particulars if available
* Notebook and pencil/pen
* Binoculars and a camera with flash facility
* Tape measure, spirit level and plumb line
* Other useful tools, to include small hammer, torch, screwdriver and manhole lifting irons
* Moisture meter
* Ladders † eaves access and loft access
* Sealable bags for taking samples, e.g. wood rot, asbestos, etc.

Communicating Information - Building Survey


Construction Defects † correct application of materials produced to the recommendations of British, European and International Standards authorities, in accordance with local building regulations, by-laws and the rules of building guarantee companies, i.e. National House Building Council (NHBC) and MD Insurance
Services, should ensure a sound and functional structure. However, these controls can be seriously undermined if the human factor of quality workmanship is not fulfilled. The following guidance is
designed to promote quality controls:

BS 8000: Workmanship on building sites.

Building Regulations, Approved Document to support Regulation 7 - materials and workmanship.

No matter how good the materials, the workmanship and supervision, the unforeseen may still affect a building. This may materialise several years after construction. Some examples of these latent defects include: woodworm emerging from untreated timber, electrolytic decomposition of dissimilar metals inadvertently in contact, and chemical decomposition of concrete. Generally, the older a building the more opportunity there is for its components and systems to have deteriorated and malfunctioned. Hence the need for regular inspection and maintenance. The profession of facilities management has evolved for this purpose and is represented by the British Institute of Facilities Management (BIFM).

Property values, repairs and replacements are of sufficient magnitude for potential purchasers to engage the professional services of a building surveyor. Surveyors are usually members of the Royal Institution of Chartered Surveyors (RICS). The extent of survey can vary, depending on a client's requirements. This may be no more than a market valuation to secure financial backing, to a full structural survey incorporating specialist reports on electrical installations, drains, heating systems, etc.

Communicating Information - Block and Site Plans




Communicating Information - Floor Plans and Elevations


  1. FRONT ELEVATION
  2. REAR ELEVATION
  3. SIDE ELEVATION (right)
  4. GROUMD FLOOR PLAN
  5. FRIST FLOOR PLAN
  6. SIDE ELEVATION (LEFT)

Communicating Information - Perspective Projections







Communicating Information - Isometric Projections


Isometric Projections - a pictorial projection of a solid object on a plane surface drawn so that all vertical lines remain vertical and of true scale length, all horizontal lines are drawn at an angle of 30 and are of true scale length therefore scale measurements can be taken on the vertical and 30 lines but cannot be taken on any other inclined line.

A similar drawing can be produced using an angle of 45 for all horizontal lines and is called an Axonometric Projection


ISOMETRIC PROJECTION SHOWING SOUTH AND WEST ELEVATIONS OF SMALL GARAGE AND WORKSHOP ILLUSTRATED ON PAGE 23

Communicating Information - Orthographic Projections


Orthographic projection - a means of drawig independent views of a solid object on a plane surface.



Drawings - Sketches

Sketch - this can be defined as a draft or rough outline of an idea, it can be a means of depicting a three-dimensional form in a two-dimensional guise. Sketches can be produced free-hand or using rules and set squares to give basic guide lines.

All sketches should be clear, show all the necessary detail and above all be in the correct proportions.

Sketches can be drawn by observing a solid object or they can be produced from conventional orthographic views but in all cases can usually be successfully drawn by starting with an outline `box' format giving length, width and height proportions and then building up the sketch within the outline box.


Drawings Used in the Construction Process


Location Drawings 

Site Plans - used to locate site, buildings, define site levels, indicate services to buildings, identify parts of
site such as roads, footpaths and boundaries and to give setting out dimensions for the site and buildings as
a whole. Suitable scale not less than 1 : 2500

Floor Plans - used to identify and set out parts of the building such as rooms, corridors, doors, windows, etc., Suitable scale not less than 1 : 100

Elevations - used to show external appearance of all faces and to identify doors and windows. Suitable scale not less than 1 : 100

Sections - used to provide vertical views through the building to show method of construction. Suitable scale
not less than 1 : 50

Component Drawings

used to identify and supply data for components to be supplied by a manufacturer or for components not
completely covered by assembly drawings. Suitable scale range 1 : 100 to 1 : 1

Assembly Drawings 

used to show how items fit together or are assembled to form elements. Suitable scale range 1 : 20 to 1 : 5
All drawings should be fully annotated, fully dimensioned and cross referenced.

Ref. BS EN ISO 7519: Technical drawings. Construction drawings. General principles of presentation for general arrangement and assembly drawings.



Construction Activities - The Documents


  1. ARCHITCTS DRAWINGS
  2. ENGINEERS DRAWINGS
  3. SCHEDULES 
  4. SPECIFICATIONS
  5. CONTRACT DOCUMENT

Construction Activities - The Site


A Building or Construction Site can be considered as a temporary factory employing the necessary resources to successfully fulfil a contract.


Internal Separation and Compartmentation


Dwelling houses

Flats


Note: Floors within a maisonette are not required to be "compartment''.
 
For non-residential buildings, compartment size is limited by floor area depending on the building function (purpose group) and height. Compartment - a building or part of a building with walls and floors constructed to contain fire and to prevent it spreading to another part of the same building or to an adjoining building.
 
Separating floor/wall ~ element of sound resisting construction between individual living units.

External Envelope - Functions


External Envelope - consists of the materials and components which form the external shell or enclosure of a building. These may be load bearing or non-load bearing according to the structural form of the building.


Structure - Component Parts and Functions


  1. DOMESTIC ESTRUCTURES
  2. FRAMED ESTRUCTURES


Structure - Finishes

Finish - the final surface which can be self finished as with a trowelled concrete surface or an applied finish such as floor tiles.

  1. EXTERNAL WALLS
  2. INTERNAL WALLS
  3. FLOORS
  4. STAIRS
  5. CEILINGS 
  6. ROOFS

Superstructure and Secondary Elements

Secondary Elements - completion of the structure including completion around and within openings in primary elements.
  1. EXTERNAL WALLS 
  2. INTERNAL WALLS
  3. FLOATING FLOORS
  4. CAVITI FLOORS
  5. FLOORS TRAPS FLOORS 
  6. BALUSTRADES 
  7. SUSPENDED  CEILINGS
  8. ROOFLIGHTS

 

Superstructure and Primary Elements


Superstructure - can be defined as all structure above substructure both internally and externally.

Primary Elements - basically components of the building carcass above the substructure excluding secondary elements, finishes, services and fittings.

Typical Examples


Substructure


Substructure - can be defined as all structure below the superstructure which in general terms is considered to include all structure below ground level but including the ground floor bed.

Typial  Examples


The Structure - Basic Forms


1. SOLID CONSTRUCTION
2. FRAMED OR SKELETAL CONSTRUCTION
3. PANEL OR BOX CONSTRUCTION
4. FOLDED PLATE  CONSTRUCTION


Shells Roofs - these are formed by a structural curved skin covering a given plan shape and area.

1. DOME OR ROTATIONAL SHELL
2. PENDENTIVE DOME
3. TRANSLATIONAL DOME
4. BARREL VAULT
5. CONOID SHELLS
6. HYPERBOLIC PARABOLOID
7. SPACE DECK
8. SPACE FRAME
9. TENSION CABLE STRUCTURE
10. TENSION MEMBRANE STRUCTURE




The Structure - Basic Types

1. SIMPLE SUPPORTED BEAM
2. BUILT-IN BEAM
3. CANTILEVER BEAM
4. PROPPED CANTILEVER
5. STRUT
6. VERTICAL STRUT
7. TIE
8. ARCHES
9. POST AND LINTEL
10. PLANE FRAME

Built Environment - Physical considerations

1. Natural contours of land.
2. Natural vegetation and trees.
3. Size of land and/or proposed building.
4. Shape of land and/or proposed building.
5. Approach and access roads and footpaths.
6. Services available.
7. Natural waterways, lakes and ponds.
8. Restrictions such as rights of way; tree preservation and ancient buildings.
9. Climatic conditions created by surrounding properties, land or activities.
10. Proposed future developments.


Built Environmental Considerations

1. Planning requirements.
2. Building Regulations.
3. Land restrictions by vend or lessor.
4. Availability of services.
5. Local amenities including transport.
6. Subsoil conditions.
7. Levels and topography of land.
8. Adjoining buildings or land
9. Use of building.
10. Daylight and view aspects

EXAMPLES
HOUSES, FACTORIES, ORIENTATION ASPECTS, HOSPITALS, SCHOOLS

BUILT ENVIRONMENT

Environment = surroundings which can be natural, man-made or a combination of these.

Built Environment = created by man with or without the aid of the natural environment.

ELEMENTS OF THE NATURAL ENVIRONMENT
ELEMENTS OF THE BUILT ENVIRONMENT (EXTERNAL)
ELEMENTS OF THE BUILT ENVIRONMENT (INTERNAL)