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Preferred Solutions, Inc.

Building Products Listing Program

Customer:

Preferred Solutions, Inc.
Class:

Foam Plastic Insulation
Location:

5000 Rockside Road, Suite 230, Independence, OH 44131
Listing No.:

B1020-1
Project No.:

B1020-1 Edition 8
Effective Date:

June 14, 2021
Last Revised Date:

October 25, 2024
Expires:

N/A
Standards:

ASTM E84-18 Standard Test Method for Surface Burning Characteristics of Building Materials

UL 1715-17 Fire Test of Interior Finish Material.
Product:

Preferred Solutions spray-applied polyurethane foam plastic insulation of the following models:
• Staycell ONE STEP® 502 intumescent, spray applied polyurethane foam insulation.
• Staycell® 504 spray applied polyurethane foam insulation.
• Staycell® 505 spray applied polyurethane foam insulation.
• Staycell® 504 Hybrid spray applied polyurethane foam insulation.
• Staycell® 505 Hybrid spray applied polyurethane foam insulation.
Markings:

Product containers are marked with the following:
• Manufacturer’s Name or Trademark or other recognized symbol of identification.
• Model Designation
• Month and Year of Manufacture or equivalent
• Flame spread and smoke developed ratings per ASTM E84.
• QAI logo including Listing File Number shown below.

QAI File: B1020-1

Models:

The following outlines surface burning characteristic ratings for Preferred Solutions spray-applied polyurethane foam plastic insulation per ASTM E84:

PRODUCT	DENSITY (lbs/ft³)	MAX THICKNESS (inches)	FLAME SPREAD INDEX (FSI)	SMOKE DEVELOPED INDEX (SDI)
Staycell ONE STEP^® 502	≤ 2.4	≤ 4	≤ 25	≤ 450
Staycell^®504	≤ 2.2	≤ 4	≤ 25	≤ 450
Staycell^®505	≤ 0.55	≤ 4	≤ 25	≤ 450

The following outlines Preferred Solutions compliant assemblies for use without a code prescribed thermal barrier per evaluation to UL 17151:

ASSEMBLY	PRODUCT			DENSITY (lbs/ft³)	MAX THICKNESS (inches)	INSTALLATION
1		Staycell ONE STEP^® 502		≤ 2.40	≤ 4	Walls Only. Roofs or Ceilings are protected with a code prescribed thermal barrier.
2		Staycell ONE STEP^® 502		≤ 2.40	≤ 8 ½	Roofs, Floors or Ceilings Only. Walls are protected with a code prescribed thermal barrier.
3		Staycell ONE STEP® 504 Hybrid System	Base: Staycell^®504	≤ 2.20	≤ 3	Walls Only, with maximum installed thickness of 4 inches for Hybrid System. Roofs or Ceilings are protected with a code prescribed thermal barrier.
3		Staycell ONE STEP® 504 Hybrid System	Covering: Staycell ONE STEP^® 502	≤ 2.4	≥ 1
4		Staycell ONE STEP® 504 Hybrid System	Base: Staycell^®504	≤ 2.20	≤ 8	Roofs, Floors or Ceilings with maximum installed thickness of 8 ½ inches for Hybrid System. Walls are protected with a code prescribed thermal barrier.
4		Staycell ONE STEP® 504 Hybrid System	Covering: Staycell ONE STEP^® 502	≤ 2.4	≥ ½
5		Staycell^® 505 Hybrid System	Base: Staycell^® 505	≤ 0.55	≤ 8 Walls ≤ 7-½ Ceiling	Walls: ≤ 8’’ Staycell^® 505 covered with minimum 26 Gauge steel. Roofs, Floors and Ceilings: ≤ 7-½’’ Staycell^® 505 covered with ≥ ½’’ Staycell^® ONE STEP 502 with maximum installed thickness of 8 inches for Hybrid System.

^1: The products in the assemblies were evaluated in an exposed condition and were unprotected by a code prescribed thermal barrier during the fire exposure. Products not indicated in the respective assemblies are to be protected with a code prescribed thermal barrier.

Notes:
All products are spray applied using a pump system.

The materials, products or systems listed in this directory have been qualified to bear the QAI Listing Mark under the conditions stated with each Listing. Only those products bearing the QAI Listing Mark are considered to be listed by QAI.

The standard herein listed is the currently accepted version within the relevant certification scheme, code or other requirements unless otherwise noted. Transition periods may apply. Upon request, QAI will provide information about the validity of any of its certifications.

No warrantee is expressed or implied, and no guarantee is provided that any jurisdictional authority will accept the Listing found herein. The appropriate authorities should be contacted regarding the acceptability of any given Listing.

Visit the QAI Online Listing Directory located at www.qai.org for the most up to date version of this Listing and to validate that this QAI Listing is active. Questions regarding this listing may be directed to info@qai.org. Please include the listing number in the request.