Building Construction Handbook, Eighth Edition

Typical details (cold roof) ~

timber

battens

underlay

rafters

ceiling joists

insulation between

and over joists

vapour-check

plasterboard

ceiling (see Note 1)

50 mm deep

wall plate

external wall with

insulated cavity

cavity insulation

EAVES DETAIL

10 mm wide

continuous

ventilation

gap

fascia

soffit

board

gutter

eaves tile

margin = gauge

ventilation

spacer

plain tiles nailed

to battens every

4th course

= tile length — lap

2

= 100 mm

=^265 2 —^65

Note 1: Through ventilation is necessary to prevent condensation
occurring in the roof space. A vapour check can also help limit the
amount of moisture entering the roof void.

Note 2: 50¾25 where rafter spacing is 600 mm.

Double Lap Tilling