m3 lecture 10 timber roof structure covering

Measurement 3

Objective:-1) To extend and define skills relating to the

measurement and description of building works – Roof Structure.

Learning Outcome:-1) Measurement roof structure elements in a

building in accordance to standard Method of Measurement.

Roof Structure 1) Plates – meter - m 2 1e1) Plates meter m.2.1e2) Ceiling Joists – meter – m.2.1d3) Rafters – meter – m 2 1d3) Rafters – meter – m.2.1d4) Ridge Boards – meter – m.2.1d5) Struts meter m 2 1d5) Struts – meter – m.2.1d6) Hip/ Valley rafter – meter- m.2.1e

Roof CoveringRoof Covering6) Roof tiles – m2 – L.47) I l ti 2 L 157) Insulation – m2 – L.158) Ridge / hip Capping – m – L.9.29) F i b d M 4 1 G9) Fascia board – m – M.4.1.G10) Painting – m / m2 – U.3.2

R f D iRoof Drainage1) Upvc Gutter – m – Q.5.12) Gutter fittings – No – Q.5.33) Rain water downpipe – m – Q.5.1) p p Q

M.2 Carcassing ItemsUnless otherwise stated or included as part of a

it it ll i it h ll b composite item all carcassing items shall be given in metres stating the cross-section dimensions Classification:-dimensions. Classification:A) Floors.B) PartitionsB) Partitions.C) Flat roofs.D) Pitched roofs including ceiling joistsD) Pitched roofs including ceiling joists.E) Kerbs, bearers and the like including plates, sleepers and lintelssleepers and lintels.

1)PlatesWidth x high sawn pressed timber Grade B timber plates.

2) to 6) Pitched roof membersWidth x high sawn pressed timber Grade B g ppitched roof members.

Trussed rafters, roof trusses and the like shall be described and enumerated and

l th b d t l d ib d it unless they can be adequately described, it shall be accompanied by drawn information in accordance with clause A 5in accordance with clause A.5.

L.4 Roof CoveringRoof covering shall be given in square metre stating the pitch or pitches grouped together. Vertical covering shall be given separately.

L.9.2 Ridge, hip, verticalRidge tiles , hip tiles and vertical angle tiles shall each be given in metres as extra over the roof coverings in which they occur.

L15 UnderlayUnderlay shall be given in square metres stating stating the type and extent of the laps and method of fixing.

M.4.1.GEaves and verge boarding, fascias and barge boards and the like grouped together and measured in metres stating the cross-section size.