



K13 Sound Absorption Spray
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K-13 is a spray-applied acoustical insulation typically used as an exposed ceiling finish requiring no additional barriers or materials. K-13 meets project requirements for noise control with an attractive natural texture that is available in standard and custom colors.
Sound Control
The K-13 sound absorption spray system begins with specially prepared cellulose fibers combined with natural fire retardants in a strict, quality-controlled manufacturing process to produce a Class A, Class 1 rated material. K-13 is then spray-applied by an international network of professional contractors licensed by ICC to ensure consistent and predictable results. During application, the K-13 fibers combine with a patented water-based adhesive resulting in a durable, exposed finish.
K13 is a thermal and acoustical insulation, contact us today for any additional information!
Thermal Control
K-13 is sprayed-in-place, filling cracks, seams, and voids to form a monolithic coating over the substrate helping to reduce air infiltration. Unlike prefabricated insulations, K-13 has no voids or compressed areas to reduce thermal efficiency, resulting in exceptionally low heat-loss characteristics and an R-Value of 3.75 per inch.
K-13 can be sprayed up to 5" thick in one application without mechanical support. For an even higher R-Value, we recommend the K-13 High-R System, a mechanically supported system for R-Values exceeding R-19.
Sound Control
K-13 reduces excessive noise often present in modern design trends, significantly improving ambient sound quality and speech intelligibility.
K-13's superior acoustical performance is measured using the room reverberation method per ASTM C 423 to calculate a noise reduction coefficient (NRC). The resilient fibers of K-13 absorb sound energy instead of reflecting it, effectively reducing reverberation time and making it the perfect solution for noisy environments like restaurants, entertainment venues, or open-office plans.
Custom Colors Available
K-13 is available in five standard colors as well as specially-matched custom colors.
Please contact us for more information on customizing your K-13 application.
K-13 Standard Color Chart

Note: Color selection will affect the final price.
Sustainability
K-13 is made from 80% Pre-Consumer Recycled Content and inventoried to 1,000 PPM in accordance with the HPD Collaborative.
K-13 is UL GREENGUARD Gold certified and compliant with LEED v4: Low-Emitting Materials, CDHP/ California Section 01350, SCAQMD Rule 1168, and CHPS- Acoustical Ceiling. Additionally, K-13's thermal and acoustical performance may contribute to sustainable credit categories for green-building initiatives.
K-13 does not contain silica dust, asbestos, mineral or glass fibers, or PCB’s.
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Substrate Compatibility
K-13 Over Fireproofing
K-13 is UL Approved and listed in (6) UL BXUV Guide Design Assemblies as allowable sprayed fiber for application over Spray-Applied Fire-Resistive Materials.
The following roof, floor, and beam UL® Design Assemblies include both K-13 & SonaSpray “fc”:
D779, D798, D925, D985, P725, P732, P753, D759, D858, D902, G801, G705, P719, P723, P819