23 Windows , screens and light

1. ADVANCE BUILDING MEASUREMENT
New rules of measurement 2
23 Windows, screens and lights
Student No. :- QS/APL/16/08
HND in Quantity Surveying

2. Introduction
 RICS new rules of measurement: Detailed measurement for building
works has been written to provide a standard set of measurement
rules for the procurement of building works that are
understandable by all those involved in a construction project,
including the employer; thereby aiding communication between the
project/design team and the employer.
 This part we will use a building window, screens and lights for
prepare bills of Quantity and how to measured above work item in
according to NRM2.

3. 23.Windows, screens and lights
Timber, metal, plastic:
 Windows and shop fronts
 Rooflights
 Screens
 Louvres, shutters, canopies and blinds
 Associated glass and glazing
 Associated ironmongery

4. Drawings that must accompany this
section of measurement.
 General arrangement plans.
 Door and window schedule.
 Glazing schedule.
 Ironmongery schedule.

5. Mandatory information to be
provided.
 Kind and quality of materials and if timber describing if wrot
or sawn
 Preservation treatments.
 Surface treatments applied as part of the production process.
 Selection and protection for subsequent treatment or clear
finish.
 Matching grain or colour.

6.  Limits on planing margins.
 Method of jointing and construction where not at the
discretion of the contractor.
 Form of construction and jointing where not at the discretion
of the contractor.
 Method of fixing where not at the discretion of the contractor.
 Background where vulnerable.

7. Minimum information that must be
shown on the drawings that accompany
this section of measurement.
 Shape and size of units.

8.  Methods of fixing units.
 Glazing requirements.

9. Works and materials deemed
included.
 Bedding and pointing frames.
 Glass and the like is deemed to
be installed on site unless
stated otherwise.

10. Work to be measured
Wndows and window frames.
Window shutters.
Rooflights, skylights and
frames.
Screens, borrowed lights and
frames.
Shop fronts.
Louvers and frames.
Unit Level one Level two Level three
nr
Dimensioned
description or
diagram.
Curved work
radius stated.
Method of fixing if
not left to
discretion of
contractor.
Factory glazed

11. Glazing
Glass, type stated
Louver blades
Unit Level one Level two Level three
nr
Thickness of
glass or overall
thickness of
sealed unit
stated.
Pane size.
Shape if other than
square or
rectangular.
Airspace(s)
width(s) of
double/triple
glazed units.
Gas filling of
airspaces.
Bent: direction
stated.
Method of glazing
or securing.
Edge treatment

12. Ironmongery
Type of item, unit or set
stated
Unit Level one Level two Level three
nr
Method of
fixing.
Nature of base.
Kind and quality of
materials
and fixings.
Surface finish.
Constituent parts of the
units
or sets.

13. Notes, comments and glossary
 Windows and window frames
Glass may be incorporated into the
associated work following the rules set
out below.
 Glazing
Glass includes plastic, or any type of
material glazed into openings except
glass blocks.
The size given for irregular panes shall
be the smallest rectangular size from
which the pane can be obtained.
 Ironmongery
Ironmongery is deemed to include
fixing with screws to match and
preparing the base to receive it.

15. Example for BOQ

18. Thank you