Technical Bulletin: Rmax ECOMAXci/EVOMAXci

Note: May use 4 optionally when FRTW framing is allowed by code.

2.  CMU concrete walls

3.  20 gauge (min.) 3-5/8 in. (min.) steel studs spaced 24″ o.c. (max.) 1/2 in. (min.) type X Special Fire Resistant Gypsum Wallboard Interior

4.  Where allowed in Types I, II, III or IV construction, FRTW (fire-retardant-treated wood) studs complying with IBC Section 2303.2, min. nominal 2×4 dimension, spaced 24″ o.c. (max.)

a.  5/8 in. type X Gypsum Wallboard Interior

b.  Bracing as required by code

2.  FRTW fire blocking at floor line in accordance with applicable core requirements

Select option 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15

2. Any noncombustible insulation per ASTM E136

3. Any Mineral Fiber (board type Class A, ASTM E84 faced or unfaced)

4. Any Fiberglass (batt type Class A ASTM E84 faced or unfaced)

5.  5-1/2 inch (max.) Icynene LD-C-50 spray foam in 6-inch-deep studs (max.) Use with 5/8-inch exterior sheathing.

6.  5-1/2 inch (max.) Icynene MD-C-200 2 pcf spray foam in 6-inch-deep studs (max.) full fill without an air gap. Use with 5/8-inch exterior sheathing.

7.  5-1/2 inch (max.) Icynene MD-R-210 2 pcf spray foam in 6-inch-deep studs (max.) full fill without an air gap. Use with 5/8-inch exterior sheathing.

8.  SWD Urethane QS 112 2 pcf spray foam in 6-inch-deep studs (max.) partial fill with a maximum 2-1/2 inch air gap or full fill. Use with 5/8 exterior sheathing.

9.  Gaco Western 83M (3-1/2 inch max). Use with 5/8 exterior sheathing.

10.  Gaco Western F 1850 (3-1/3 inch max). Use with 5/8 exterior sheathing.

11. Demilec SEALECTION 500 (3-5/8 inch max). Use with 5/8 exterior sheathing.

12.  Deilec HeatLok Soy 200 Plus (3.4 inch max.) Use with 5/8 exterior sheathing.

13.  Bayer Bayseal (3 inch max). Use with 5/8 exterior sheathing.

14.  Lapolla FoamLok FL 2000 (3 inch max). Use with 5/8 exterior sheathing.

15.  BASF SprayTite 81206 or WallTite (US & US-N) (3-5/8 inch max). Use with 5/8 inch exterior sheathing.

Select option 1, 2 or 3

2.  None (for 3 in. max. exterior insulation with claddings 7-12 or 4-1/2 in. max. exterior insulation with claddings 1-6)

3.  1/2″ (min.) FRTW structural panels complying with IBC Section 2303.2 and installed in accordance with code allowances for Types I, II, III or IV construction.

Select option 1 or 2 installed per manufacturer’s installation instructions.

2. Any WRB tested in accordance with ASTM E1354 (at a minimum of 20 kW/m² heat flux) and shown by analysis to be less flammable (improved T_ign, Pk. HRR) than the baseline WRB or exterior insulation foam core. The following WRB products are allowed (item t. based on NFPA 285):

a.  W. R. MEADOWS AIR-SHIELD LMP (Gray)

b.  W. R. MEADOWS AIR-SHIELD LMP (Black)

c.  W. R. MEADOWS AIR-SHIELD TMP

d.  W. R. MEADOWS AIR-SHIELD LSR

Use either 1, 2 or 3

Note: See Exterior Sheathing options for thickness limitations when no exterior sheathing is used.

2.  4-1/2 in. (max. consisting of a single panel or multiple thinner panels) Rmax ECOMAXci (for Claddings 1-12)

3.  4-1/2 in. (max. consisting of a single panel or multiple thinner panels) Rmax TSX-8510 (for Claddings 1-12)

Note: May be applied in the field or factory applied. Adhesive must not be full coverage.

Use any items 1) a-n for claddings 1-6 with non-open joint installation technique, or any item 2) a-w for all approved claddings 1-13 below.

 Note: Exterior WRB items 1 b-d are not traditional WRB products but are insulation panel joint tapes. The insulation panel joints shall be staggered. These tapes are listed to allow use in both categories 1-6 OR 1-13.

a.  None

b.  6 in. (max.) Venture Tape CW over insulation joints

c.  6 in. (max.) Rmax R-SEAL 3000 over insulation joints

d.  6 in. (max.) asphalt or butyl based tape, or liquid flashing over insulation joints

e.  Pactiv Green Guard_®Max Building Wrap

f.  Dupont Tyvek_® (Various per 2375)

g.  Dow Weathermate_™

h.  Dow Weathermate_™ Plus

i.  Henry FoilSkin

j.  Henry MetalClad

k.  Prosoco Spraywrap MVP

l.  Soprema Soprasolin HD

m.  Carlisle (CCW) Fire Resist 705FR-A

n.  W.R. Grace PAB AWM

2.  For use with cladding options 1-6 (Brick Equivalent) with non-open joint installation techniques (ex. shiplap, etc.)

a.  W. R. MEADOWS AIR-SHIELD LMP (Gray)

b.  W. R. MEADOWS AIR-SHIELD LMP (Black)

c.  W. R. MEADOWS AIR-SHIELD TMP

d.  W. R. MEADOWS AIR-SHIELD LSR

Select option 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13

Note: For WRB over exterior insulation options

1) a-ee above, claddings 1-6 shall incorporate non- open joints.

Note: WRB over exterior insulation items 1) b-d are panel joint tapes allowed for all cladding. The panel joints shall be staggered.

2.  Stucco – Minimum 3/4″-thick, exterior cement plaster and lath with an optional secondary water resistive barrier between the exterior insulation and lath. The secondary barrier shall not be full-coverage asphalt or butyl-based self-adhered membranes.

3.  Limestone – minimum 2″ thick any using standard installation technique.

4.  Natural Stone Veneer – Minimum 2 in. thick using any standard installation technique.

5.  Cast Artificial Stone – Minimum 1-1/2 in. thick complying with ICC-ES AC 51 using any standard installation technique.

6.  Terra Cotta Cladding – Minimum 1-1/4″ in. thick using any standard installation technique.

7. Any MCM or ACM (aluminum, steel, copper, zinc) (w/ 2 1/2 in. max. air gap) that has successfully passed NFPA 285 using any standard installation technique, such as

•  Carter Companies EVO Architectural Panel Systems for use with any FR ACM/MCM NFPA 285 material

8.  Uninsulated sheet metal building panels including aluminum, zinc, steel or copper using any standard installation technique.

9.  Uninsulated fiber-cement board siding using any standard installation technique.

10.  Stone/Aluminum honeycomb composite building panels that have passed NFPA 285 or equivalent.

• Stone Panels Inc. Stone Lite Panel system has been analyzed using manufacturer’s standard installation technique.

11. Autoclaved-aerated-concrete (AAC) panels that have successfully passed NFPA 285 using any standard installation technique.

12.  Thin Set Brick

•  Glen-Gary Thin Tech_™ Elite Series has been analyzed using manufactuer’s standard installation technique.

13.  Natural Stone Veneer – minimum 1 1/4 inch (adhered with mortar or concrete/cement based adhesive).