Cumulus traps are constructed of high density 6 lb per cubic foot rigid fiberglass with resin hardened edges. This process works in tandem with the surface micromesh to fully encapsulate the fiberglass. Panels are covered in an acoustically transparent fabric in choice of three colors for an architecturally attractive appearance.

Cumulus traps have been tested to meet stringent class-1 fire ratings making them suitable for use in residential and commercial spaces.

Test	Class	Flame Spread	Smoke Density	Test Data
ASTM E 85-05	1 or A	15 FSI	155 SD
CAN/UL-S102	1 or A	15 FSC1	155 SD
Test data provided by Bodycote Materials Testing Inc. This method, designated as ASTM E 84-05, "Standard Method of Test for Surface Burning Characteristics of Building Materials", is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire-hazard or fire-risk assessment of the materials, products, or assemblies under actual fire condition.

Testing performed by Riverbank Acoustical Laboratories. The test method conformed explicitly with the requirements of the ASTM Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method: ASTM C 423-02a and E795-05. Due to the size of the wavelengths and limitations of the testing facilities, low frequency absorption data is based on a combination of Broadway panel test results from Riverbank Acoustical Laboratories and 1/4 wave length calculations.