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chapterStructural carcassing
12OVERVIEW Structural carcassing covers all carpentry work associated with
This chapter is designed to help you identify the main activities associated with structural carcassing and to provide you with the
This chapter will cover the following topics:
These topics can be found in the following modules:
CC 1001K CC 1001S
CC 2010K CC 2010S
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Carpentry and Joinery NVQ and Technical Certificate Level 2, 2nd Edition
VVVVergeerVVV
VergeVV
Eaves
Abutment
Figure 12.53 Flat roof terminology
Single fall into guttering Double fall into guttering
Double fall to internal funnel outlet Double fall to corner funnel outlet
Direction of fall
Figure 12.54 Falls on a flat roof
Remember
A roof with an angle of more than 10 degrees is classified as a pitched roof
Definition
Fibreglass – a material made from glass fibres and a resin that starts in liquid form then hardens to be very strong
SDid you know?
If a puddle forms on a roof and is not cleared away quickly, over a period of years the water will eventually work its way through
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Chapter 12 Structural carcassing
Laying joists to a fall
Figure 12.55 Joists laid to a fall
FFFFFFFallallallallallall
Decking
VariableVVdepth firringsto give fall Joists fixed level
Figure 12.56 Joists with firring pieces
Definition
Firring piece – long wedge tapered at one end and fixed on top of joists to create the fall on a flat roof
Joist
Wall plate