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Preferred Solutions, Inc.

Building Products Listing Program

Customer:

Preferred Solutions, Inc.
Class:

Foam Plastic Insulation
Location:

7918 Broadview Rd., Cleveland, OH, 44131
Listing No.:

B1020-1
Project No.:

B1020-1 Edition 7
Effective Date:

June 14, 2021
Last Revised Date:

N/A
Expires:

N/A
Standards:

ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials
UL 1715 Fire Test of Interior Finish Material.
Product:

Preferred Solutions spray-applied polyurethane foam plastic insulation of the
following models:
• Staycell ONE STEP® 255 spray applied polyurethane foam insulation.
• Staycell® 265 spray applied polyurethane foam insulation.
• Staycell ONE STEP® 502 intumescent, spray applied polyurethane
foam insulation.
• Staycell ONE STEP® 502 intumescent, spray applied polyurethane
foam insulation.
• Staycell® 503 spray applied polyurethane foam insulation.
• Staycell® 504 spray applied polyurethane foam insulation.
• Staycell® 505 spray applied polyurethane foam insulation.
• Staycell® 506 spray applied polyurethane foam insulation.
• Staycell® 265 Hybrid 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:

PRODUCT	DENSITY (lbs/ft³)	MAX THICKNESS (inches)	FLAME SPREAD INDEX (FSI)	SMOKE DEVELOPED INDEX (SDI)
Staycell ONE STEP^® 255	≤ 2.20	≤ 4	≤ 25	≤ 450
Staycell^® 265	≤ 2.20	≤ 4	≤ 25	≤ 450
Staycell ONE STEP^® 502	≤ 2.4	≤ 4	≤ 25	≤ 450
Staycell^® 503	≤ 1.9	≤ 4	≤ 25	≤ 450
Staycell^® 504	≤ 2.2	≤ 4	≤ 25	≤ 450
Staycell^® 505	≤ 0.55	≤ 4	≤ 25	≤ 450
Staycell^® 506	≤ 2.2	≤ 4	≤ 25	≤ 450

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

PRODUCT		DENSITY (lbs/ft³)	MAX THICKNESS (inches)	INSTALLATION
Staycell ONE STEP^® 255		≤ 2.20	≤ 4	Walls Only
Staycell ONE STEP^® 255		≤ 2.20	≤ 8	Roofs or Ceilings Only
Staycell ONE STEP^® 502		≤ 2.40	≤ 4	Walls Only
Staycell ONE STEP^® 502		≤ 2.40	≤ 8 ½	Roofs or Ceilings Only
Staycell^® 265 Hybrid System	Base: Staycell^® 265	≤ 2.20	≤ 4	Walls Only, with maximum installed thickness of 5 inches for hybrid system.
Staycell^® 265 Hybrid System	Covering: Staycell^® 255	≤ 2.20	≤ 1
Staycell^® 265 Hybrid System	Base: Staycell^® 265	≤ 2.20	≤ 8	Roofs or Ceilings Only, with maximum installed thickness of 8 ½ inches for hybrid system.
Staycell^® 265 Hybrid System	Covering: Staycell^® 255	≤ 2.20	≥ ½
Staycell ONE STEP^® 504 Hybrid System	Base: Staycell^® 504	≤ 2.20	≤ 3	Walls Only, with maximum installed thickness of 4 inches for Hybrid System
Staycell ONE STEP^® 504 Hybrid System	Covering: Staycell ONE STEP^® 502	≤ 2.4	≥ 1
Staycell ONE STEP^® 504 Hybrid System	Base: Staycell^® 504	≤ 2.20	≤ 8	Roofs or Ceilings with maximum installed thickness of 8 ½ inches for Hybrid System
Staycell ONE STEP^® 504 Hybrid System	Covering: Staycell ONE STEP^® 502	≤ 2.4	≥ ½
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 and Ceilings: ≤ 7- ½’’ Staycell^® 505 covered with ≥ ½’’ Staycell^® ONE STEP 502 with maximum installed thickness of 8 inches for Hybrid System
Staycell^® 505 Hybrid System	Covering: Staycell ONE STEP^® 502	≤ 2.4	≥ ½ Ceiling

Notes: All products are spray applied using a pump system.
¹UL 1715 tested assemblies were evaluated exposed without a thermal
barrier or ignition barrier separating the insulation from the fire exposure.

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.

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.