Wind pressures act perpendicular to flat surfaces, regardless of surface orientation (General for Building 2017 Edition – Section 16 – Curtain Walls – Structural Requirements – 16.46).

Teak, which is only permitted to be specified in special circumstances, shall have a density of 650 kg/m3 (minimum) at 15% moisture content (General for Building 2017 Edition – Section 13 – Carpentry and Joinery – Teak – 13.07).

In addition to the loads given in the loading schedule, the weight of pile caps or backfill over the pile caps and the imposed load over the plan area of the pile caps, which shall be taken as 7.5 kN/m2 unless specified otherwise, shall be included in the pile loading (General for Building 2017 Edition – Section 5 – Piling Work – General – 5.01).

The soluble sulphate content of the suitable material placed within 500 mm of concrete, cement bound material, or cementitious material shall not exceed l.9 grams of sulphate, expressed as SO3, per litre (General for Building 2017 Edition – Section 3 – Excavation and Earthwork – Definitions – 3.01).

Rubble of random shapes and sizes in random rubble walling shall be bonded together over each face of the wall. Rubble shall be selected and rough dressed to keep joint widths to a minimum. At least one bonding rubble of minimum size 450 mm x 150 mm (minimum) shall be provided and carried through the full thickness of the wall per square meter (see Diagram A). No more than 3 nos. rubble shall be adjacent to a vertical joint (General for Building 2017 Edition – Section 10 – Masonry – Random Rubble – 10.12).

A slop sink means a sink used or constructed to be used for receiving solid or liquid excrement. (Building standards of sanitary fitments, plumbing drainage works and latrines regulations – Regulation 1 Part 1 Preliminary).

The incipient phase of a fire can last a few milliseconds to days depending on the initial fuels involved, ambient conditions, ignition source, etc. In most cases, the incipient phase is ignored and the growth phase is started from time zero. (Code of practice for fire safety in buildings 2011 – Clause G6.5 Design Fires).

Surface water means rainwater from any part of a building including any paved area or ground, whether paved or not, appurtenant to any building. (Building standards of sanitary fitments, plumbing drainage works and latrines regulations – Regulation 1 Part 1 Preliminary).

Septic tank means a tank, for the reception of soil and waste from a building, in which the liquefaction of solid organic matter occurs. (Building standards of sanitary fitments, plumbing drainage works and latrines regulations – Regulation 1 Part 1 Preliminary).

Cement-based plaster contains mineral filler material as aggregate and portland cement as main binder, with additives for improved compressive strength and reduced shrinkage
Gypsum based plaster contains pre-mixed minerals, gypsum base rendering materials, and additives which could be applied in one single thick application without cracking and separation from the substrate (General for Building 2017 Edition – Section 18 – Finishes – Cement Based Premixed Plaster – 18.58).

Structural sealant shall be either:
a. One part gun grade neutral moisture curing silicone elastomeric sealant or
b. Two part structural silicone elastomeric sealant. Products requiring mixing of components shall be acceptable only for shop application with mixing and application equipment acceptable to the sealant manufacturer (General for Building 2017 Edition – Section 16 – Curtain Walls – Sealants – 16.21).

Provide mechanical retention for the sprayed mineral coating by means of mesh reinforcement in accordance with BS 8202-1 unless:
a. There is evidence from fire resistance tests to show that there is adequate bond between the spray and the substrate (including primers or other coatings)
b. The spray is locked in position by virtue of the shape of the element (General for Building 2017 Edition – Section 15 – Structural Steel Work – Sprayed Mineral Coating – 15.69).

Dry density and cohesion/adhesion properties of sprayed material;
For general area:
Dry density of the sprayed material shall not be less than 240 kg/m3
The cohesion/adhesion of the sprayed material shall have a minimum 0.01 MPa onto primed steelwork under site tests in accordance with ASTM E736. (General for Building 2017 Edition – Section 15 – Structural Steel Work – Sprayed Mineral Coating – 15.69).

Actual stone thickness shall be nominal thickness ±2.0 mm (General for Building 2017 Edition – Section 16 – Curtain Walls – Stone – 16.14).

General filling material shall be “suitable material”. It may contain up to 25% rock distributed evenly throughout the whole mass of the material. General filling material shall contain no material exceeding 200 mm in size (General for Building 2017 Edition – Section 3 – Excavation and Earthwork – Definitions – 3.01).

Wind pressures act perpendicular to tangents of curved surfaces (General for Building 2017 Edition – Section 16 – Curtain Walls – Structural Requirements – 16.46).

Unless otherwise stated:
a. Bottom bolts shall be 150mm minimum long.
b. Top bolts to doors up to 2000mm high shall be 150mm long. For taller doors, increase bolt length by 150mm for each 150mm of additional height, or part thereof. For very tall doors, automatic flush bolts may be substituted (General for Building 2017 Edition – Section 14 – Ironmongery – Bolts – 14.88).

Hardwood weather boarding shall be 150 mm wide and tapering from 25 mm to 10 mm thick and shall be:
a. Sawn boarding or boarding wrot on one face and two edges with horizontal joints lapped 30 mm.
b. Boarding as (a) but with wider edge rebated with joints lapped 20 mm (General for Building 2017 Edition – Section 13 – Carpentry and Joinery – Weather Boarding – 13.11).

Surfaces to which tanking is to be applied shall be level and free from irregularities such as ridges, dips, fins and concrete or mortar droppings (General for Building 2017 Edition – Section 11 – Tanking – Surface Preparation for Sheet Membrane – 11.08.01).

The relative compaction (RC) of filling material shall be determined in accordance with the following equation:
RC = IDD/MDD x l00%
where:
– IDD is the in-situ dry density determined in accordance with Clause 3.21
– MDD is the maximum dry density determined in accordance with Clause 3.21 (General for Building 2017 Edition – Section 3 – Excavation and Earthwork – Compaction by Performance Specification – 3.19).

Dry density and cohesion/adhesion properties of sprayed material;
For general area:
The dry density of the sprayed material shall not be less than 240 kg/m3
The cohesion/adhesion of the sprayed material shall have a minimum 0.01 MPa onto primed steelwork under site tests in accordance with ASTM E736. (General for Building 2017 Edition – Section 15 – Structural Steel Work – Sprayed Mineral Coating – 15.69).

Rock is a hard material which in the opinion of the SO can only be removed by the use of blasting, wedges or pneumatic drills and shall include individual boulders or other masses exceeding 0.20 m3 in size (General for Building 2017 Edition – Section 3 – Excavation and Earthwork – Definitions – 3.01).

The watertightness test is passed if the drop is less than 1/500 the average water depth or 10 mm whichever is the least (General for Building 2017 Edition – Section 6 – Structural Concrete Work – Water Tanks – 6.63).

Wind pressures act perpendicular to flat surfaces, regardless of surface orientation (General for Building 2017 Edition – Section 16 – Curtain Walls – Structural Requirements – 16.46).

The maximum allowable compressive stress of the reinforcement shall not exceed 205 MPa for ribbed steel reinforcing bars in Grade 500. The maximum allowable bond stress between grout and reinforcement for ribbed steel reinforcing bars in Grade 500 shall not exceed 0.8 MPa. In calculating the allowable load capacity of the pile due to bond, the effective diameter of a group of bars (with spacing between adjacent bars less than 25mm) shall be equivalent to the diameter of a bar of equal total area (General for Building 2017 Edition – Section 5 – Piling Work – Minipiles – 5.21).