InsulWall | R-Tech Gable-Guard (GG)
With one-coat stucco systems, using R-Tech Gable-Guard (pdf) insulation in gable-end applications will provide a quality rigid insulation while eliminating the need for a traditional thermal barrier (ESR #1788).
Features & Benefits:
- No thermal barrier needed
- Cost competitive
- Jobsite durability
- Lightweight – easy-to-cut, handle and install
- 20-Year in-service R-value warranty
R-Tech Gable-Guard is available with flat faces and square edges in 4-foot (1219 mm) widths and 8-foot (2438 mm), 10-foot (3048 mm) and 12-foot (3658 mm) lengths, and with a nominal thickness of 1/2 inch (12.7 mm). The foam plastic boards are Type 1 boards complying with ASTM C 578. The boards have a nominal density of 1 pdf (16 kg/m3) and a nominal 1.5-mil (0.38 mm) polymeric facer laminated to both sides of the board. The foam plastic boards have a flame-spread index not exceeding 75 and a smoke-developed index not exceeding 450 when tested in accordance with ASTM E 84 (UBC Standard 8-1).
EPS Code Compliance:
- ASTM C 578
- ICC – ES ESR 1788
- Meets HUD Specifications
- UL Laboratories Classified
In attic or gable-end applications, R-Tech Gable-Guard stucco boards may be used without a protective thermal barrier as required by section 2602.4 of the code provided the following conditions are met:
- There are not interconnected attic areas.
- Air in the attic space in not circulated to other parts of the building.
- Attic ventilation is provided that complies with IBC Section 1203.2, IRC Section R806 or UBC Section 1505.
R-Tech Gable-Guard is fastened to the exterior framing and spaced a minimum of 24-inches on center. The boards are attached to the framing with minimum 1-3/4″ long standard fasteners (nails at 12″ on center, staples at 6″ on center, etc.). Install trim, flashing and expansion joints as required. Self-furring metal lath should be anchored mechanically to the exterior framing members. Apply base-and finish-coat per manufactures. R-Tech Gable Guard is not structural.