Megaboard Wall Sheathing

Megaboard Sheathing delivers remarkable shear strength, fire resistance and structural performance in a single layer solution.

Fastened to steel or timber-framing studs, Megaboard Sheathing can achieve more than 3,500 PLF nominal shear capacity to resist seismic and lateral wind forces on your building.

In common with all Megaboard products, Megaboard Sheathing is non-combustible per IAMPO listings for up to 2-hour fire rating, and has exceptional load-bearing strength.

Uniquely, these exceptional composite characteristics come from a single integral panel – a lightweight solution which cannot delaminate and is resistant to water, mold and insect damage.

Features

Non-Combustible

Non-combustible per IAPMO listings (ASTM E136 – Non-Combustible). IBC & IRC approved for up to 2-hour fire ratings.

Strong

Shear capacity of more than 3,500PLF against seismic and lateral wind, plus exceptional structural load-bearing performance.

Quick & Simple to Install

Lightweight, durable and single trade fitted for on-site efficiency and reduced build times.

Water, Mold & Insect Resistant

Inorganic cementitious materials will not grow mold (per ASTM G 21 0/0), and ensure zero nutritional value for complete resistance to termites and all wood-boring insects.

Sound Insulating

A unique formulation which can help building designers and contractors achieve critical sound ratings, with the ability to reach 55+ STC/IIC ratings.

Dimensionally Accurate & Stable

Manufactured to class-leading tolerances for on- and off-site precision. Resistance to water means panels remains structural while wet, and will not delaminate, warp, expand or bow.

Specification

Megaboard’s unique formulation – a high density and quality of cementitious material around a six-layer fiberglass reinforcement mesh – has been developed over more than a decade and tested at labs throughout the US and Canada for class-leading results in everything from fire resistance and sound insulation to shear, deflection and shear diaphragm strength.

5/8” and 1/2” wall sheathing panel.
Factory sealed with square end.
Worked with regular wood working tools (cuts with a standard carbide tip).
Mechanically fastened directly to steel (screwed) or wood (nailed) framing studs.
Durable, lightweight, silica and toxin free for easy on-site handling.
Building Code approvals including:
- IAPMO Certified and listed, non-combustible for use in all type of non- combustible construction.
- 2 hrs rated wall assembly tested with Intertek, certification pending.
- Shear wall certification pending with IAPMO.
- State of California Approval (Cal-Fire).
- 2021, 2018, and 2015 International Building Code^® (IBC)
- 2021, 2018, and 2015 International Residential Code^® (IRC)
- 2019 California Building Code^® (CBC) and 2019 California Residential Code^® (CRC) – Supplement attached.
- 2020 Florida Building Code^® (FBC), Building and Florida Building Code^® (FBC) Residential – Supplement attached.

Downloads

Specification Sheet

Please review our Megaboard Subfloor specification sheet to learn how it delivers exceptional performance and compelling value for steel frame, wood frame and modular construction.