Installation Guide

50
INSTALLING RAKE AND FASCIA BOARD
HardieTrim boards can be fastened directly over a 2x sub-fascia or
directly to rather tails. Check local building code for relevant codes.
James Hardie recommends that the fascia be no more than 2 in. larger
than the subfascia, e.g. over a nominal 2x6 subfascia, install an 8-in.
fascia board (7
1
/4-in. actual) fascia. On longer fascia runs, join HardieT-
rim boards with weather/bevel cuts.
Ledger
Fascia
Subfascia
Rafter tails
Sheathed wall
DRIP EDGE
After the fascia is installed, a vinyl, coated
aluminum or galvanized drip-edge flashing
must be installed to the roof sheathing
overlapping the fascia board. The drip
edge helps protect the top edge of the
fascia board and it minimizes water
ingress into the soffit and/or cornice cavity.
Choose a drip edge design that effectively
channels water away from the face of the
fascia and into gutters if present.
Subfascia
Ledger
Rafter tail
Sheathed wall
Soft
Drip edge
Roof sheathing
Fascia
Blocking
8.23
8.24
WARNING
Use only 2-in. 16-ga. finish nails to
pre-assemble HardieTrim 5/4, 4/4 board corners.
!
General
Product
Information
Working
Safely
Tools for
Cutting and
Fastening
General
Installation
Requirements
General
Fastener
Requirements
Finishing and
Maintenance
HardieTrim®
Boards/Battens
HardieWrap®
Weather Barrier
HardieSoffit
®
Panels
HardiePlank
®
Lap Siding
HardieShingle
®
Siding
HardiePanel
®
Vertical Siding
Appendix/
Glossary
ESR-1844 &
2290 Report
Installation of HardieTrim
®
5/4, 4/4 & NT3
®
Back Grooved Boards