13
Step 9: Internal Insulation
Step 10:
Gutter adaptor
Fit box gutter adaptor into the box gutter and
seal using suitable wet sealant. Seal between
ringbeam/extension and window line with
appropriate sealer. Also seal against house wall.
25mm PIR Insulation to be used under Box
Gutter for insulating value and to avoid the
risk of condensation.
Install
25mm
insulation between battens and
apply expanding foam to the spider assembly.
Please ensure elecrical wiring is in place before
25mm PIR is positioned.
9a
10a
Step 11: Gutter
Twist fit gutter brackets to ringbeam prior to
installing gutter and downpipe.
11a
Cut and mitre
72mm
insulated plasterboard, fix
into position, tape all joints and seal against
window frame.
9b
