Installation Guide

Figure 19: Specialty Roof Deck-Panels Over Insulation
SPECIALTY ROOF DECK DETAILS
Rigid Insulation
Numerous types of rigid insulation are now in
use, and may be made from expanded
polystyrene beads, rigid urethane laminate,
low density fiberboard, or from fast-setting
liquids poured on-site. They vary in thickness
up to more than 2" and in length and width
depending upon the manufacturer. All these
types are efficient insulators and are usually of
sufficient density to hold the weight of a
normal roofing material without the need for
lumber bridging. If you live in an area where
snowfall is prevalent, please consult your local
building official for snow load requirements.
Exterior panels
Rigid insulation
Wooden deck
Certi-label shakes or shingles
(applied per specification)
Joist
16
For more technical
information please contact
the CSSB office at
Tel: [phone]
Fax: [phone]
[e-mail]
www.cedarbureau.org
If shingles are applied over insulation and
ventilation is required, nailing strips may be
applied under shingles (see Figure 23b on page
®
19).
For areas of high humidity Certi-Last
preservative treated product is recommended.
Brindisi and Yaroscak Custom Builders, Inc. Architect: George Dumitru