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Nucor Composite CFR™ Fiberglass Insulation with Z-Bars Detail
(Scroll down for Rigid Board Insulation Details - with and without Z-bars)

  Nucor Composite CFR Fiberglass insulation detail with Z-Bars

Fiberglass Insulation - Nucor recommends that the fiberglass insulation be installed in two layers, as shown above.

Layered Insulation - This recommended layer method of insulation helps ensure that there are no gaps in the insulation. (Gaps in the insulation can cause condensation problems.)

Insulation - Insulation is not by Nucor

Roof Deck - Roof deck is fabricated in accordance with SDI specifications and tolerances. Nucor does not offer warranties on liner decking.

Panel Clips Fasteners - Panel clips fasteners must engage the Z-Bar member. Self-drilling fasteners without a washer are utilized.

Z-Bar Fasteners - The Z-Bar fasteners must engage the deck. Self-drilling fasteners without a washer are utilized.

Vapor Barrier- Vapor barrier is required in all composite CFR applications to help avoid condensation. Vapor barrier is not provided by Nucor Building Systems.

UL90 Requirements- For UL90 Requirements, please contact Nucor.

Z-Bar Spacing - Z-bars (16 gauge minimum) are spaced either 4'-0" or 5'0" apart to accommodate standard fiberglass insulation roll widths.

Nucor Composite CFR™ Rigid Board Insulation with Z-Bars Detail
(Scroll down for Rigid Board Insulation Detail)

Rigid Board Insulation with Z-Bars Detail

Rigid Board Insulation - NBS recommends that the rigid board insulation be installed in two layers, with the top layer being 1" thick, as shown above

Layered Insulation - This recommended layered method of insulation helps ensure that there are no gaps in the insulation. Gaps in the insulation can cause condensation problems.

Insulation - Insulation is not by Nucor

Roof Decking - Roof deck is fabricated in accordance with SDI specifications and tolerances. Nucor does not offer warranties on liner decking.

Panel Clips Fasteners - Panel clips fasteners must engage the Z-Bar member. Self-drilling fasteners without a washer are utilized.

Z-Bar Fasteners - Z-Bar fasteners must engage the deck. Self-drilling fasteners without a washer are utilized.

Vapor Barrier - A Vapor barrier is required in all Composite CFR applications to avoid condensation. Vapor barrier is not provided by Nucor.

UL90 Requirements - For UL90 requirements, please contact Nucor.

Z-Bar Spacing - Z-Bars (16 gauge minimum) are spaced 4'-0" apart to accommodate standard rigid board insulation widths.

Nucor Composite CFR™ Rigid Board Insulation Detail

Rigid Board Insulation detail

Rigid Board Insulation - NBS recommends that the rigid board insulation be installed in two layers, with the top layer being 1" thick, as shown above.

Layered Insulation - This recommended layered method of insulation helps ensure that there are no gaps in the insulation. Gaps in the insulation can cause condensation problems.

Insulation - Insulation is not by Nucor.

Roof Decking - Roof deck is fabricated in accordance with SDI specifications and tolerances. Nucor does not offer warranties on liner decking.

Panel Clips Fasteners - Panel clips fasteners must engage the roof secondary member. Self-drilling fasteners without a washer are utilized. Nucor recommends that the deck and roof secondary member be pre-drilled for the panel clip fasteners to help avoid fastener drill point breakage.

Vapor Barrier - A Vapor barrier is required in all Composite CFR applications to avoid condensation. Vapor barrier is not provided by Nucor.

UL90 Requirements - For UL90 requirements, please contact Nucor.

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