2.3.5-1

Rooflights, skylights and openings

Unit: nr/m2 Sub-Element: 2.3.5 - 5 Rooflights, skylights and openings
Component Information
Code:
2.3.5-1
Sequence:
1
Unit:
nr/m2
Sub-Element:
2.3.5 - 5 Rooflights, skylights and openings
Description:

Rooflights, skylights and openings

Details to State:

type and size to be stated

Component Statistics
5
Measurement Rules
10
Included Items
3
Excluded Items
Measurement Rules (5)
C1 1

Where components are to be enumerated, the number of components is to be stated.

C2 2

The area measured is the area of rooflights, skylights and openings.

C3 3

Curved work is to be described and identified separately.

C4 4

Work to existing buildings is to be described and identified separately.

C5 5

Contractor-designed work is to be described and identified separately.

Note: Where the contractor is only responsible for designing specific elements and/or components of the building project (i.e. not the entire building project).
Included Items (10)
1.

Rooflights, skylights, etc.

2.

Opening gear, frames, kerbs and glazing.

3.

Sun pipes/tubes.

4.

Pavement lights.

5.

Roof hatches.

6.

Access hatches to roof spaces.

7.

Smoke vents.

8.

Roof vents and roof cowls.

9.

Sundry items.

10.

Where works are to be carried out by a subcontractor, the subcontractor’s preliminaries, design fees, risk allowance, overheads and profit, with allowance for these to be made within unit rate applied to element or component.

Excluded Items (3)
1. Ref: 2.3.1, 2.3.2, 2.6.1

Dormer roofs and windows (included in sub-elements 2.3.1, 2.3.2 and 2.6.1, as appropriate).

2. Ref: 3.3.2, 3.3.3

Access hatches to false ceilings or demountable suspended ceilings (included in sub-elements 3.3.2 or 3.3.3, as appropriate).

3. Ref: 2.3.2

Flashings to rooflights, skylights and openings (included in sub-element 2.3.2).

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