Title: Specification:
Author: Kevin Gebke
Last saved by: Kayla Winandy
Company: RH
Category: Miscellaneous

DuctSox SkeleCore Pull-Tight with Opti-X: 
Old Format / Location:  		Division 15, Section 15800     
2005 Master Spec Format: 	Section/Category:  [23 37 16]

PART 1-GENERAL (Division 15, Section 15800)
1.1	DESCRIPTION OF WORK:
A.	Extent of non-metal ductwork is indicated on drawings and by requirements of this section.
B.	Types of non-metal ductwork required for this project include the following:
1.	Textile Air Dispersion Products.

1.2	QUALITY ASSURANCE:
A.	Building Codes and Standards:
1.	Product must be Classified by Underwriter’s Laboratories in accordance with the 25/50 flame spread / smoke developed requirements of NFPA 90-A and UL 2518. Also Classified by UL-C (Canada) S102.2.
2.	All product sections must be labeled with the logo and classification marking of Underwriter’s Laboratories.
B.	Design & Quality Control
1.	Manufacturer must have documented design support information including duct sizing; vent location; vent sizing; length; and suspension.  Parameters for design, including maximum air temperature, velocity, pressure and textile permeability, shall be considered and documented.
2.	Manufacturer's Environmental Product Declaration (EPD) must be inclusive of the following:
a.	Fabric
b.	Cutting, sewing, processing of DuctSox
c.	Zippers
d.	Metal suspension system parts and framework (if applicable)
e.	Energy, water, recycled & waste of plant processing fabric & suspension
f.	Complete packaging including boxes, bags & staples
g.	Transportation

1.3	SUBMITTALS:
A.	Product Data: Submit manufacturer’s specifications on materials and manufactured products used for work of this section.	
B.	Building Code Data: Submit UL file number under which product is Classified by Underwriter’s Laboratories for both NFPA 90-A and UL 2518.
C.	Provide detailed drawings confirming configuration of Textile Dispersion System (diameter, lengths, airflow, pressure, and textile permeability).
D.	Provide detailed installation instructions for components to be installed. 
E.	Provide warranty and maintenance documentation. 
F.	Provide product’s Environmental Product Declaration (EPD) that includes the following:
1.	Fabric
2.	Cutting, sewing, processing of DuctSox
3.	Zippers
4.	Metal suspension system parts and framework (if applicable)
5.	Energy, water, recycled & waste of plant processing fabric & suspension
6.	Complete packaging including boxes, bags & staples
7.	Transportation

1.4	WARRANTY:
	A.	Manufacturer must provide a 10 Year Product Warranty for products supplied for the fabric portion of this system as well as a Design and Performance Warranty.

1.5	DELIVERY, STORAGE AND HANDLING:
A.	Protect textile air dispersion system and SkeleCore Pull-Tight components from damage during shipping, storage, and handling.
B.	Where possible, store products inside and protect from weather.  Where necessary to store outside, store above grade and enclose with a vented waterproof wrapping.  

PART 2 - PRODUCTS
2.1	MANUFACTURER:
Subject to compliance with requirements, choose one of the following:
A.	DuctSox^® Corporation
 Phone: (866) DUCTSOX or  (563) 588-5300
 www.DuctSox.com	    

2.2	TEXTILE AIR DISPERSION SYSTEM:
A.	SkeleCore Pull-Tight System: Air diffusers shall be constructed with both internal retention and external tensioning.
1.	System shall consist of internal tensioning baskets with cable or track stops that externally tension the system off of the suspension system selected below along with 360 degree internal retention hoops that are spaced 5’ on center between tensioning baskets.
2.	Tensioning baskets are designed to self-lock when tension is applied to the system. 
3.	All straight sections utilize both internal retention hoops and external tensioning with the use of the tension baskets, all fittings(crosses, elbows, reducers, and tees) utilize internal retention hoops.
4.	Distance between consecutive tensioning baskets should not be more than 40’.
5.	System shall be installed with a one row suspension system located 1.5” above top-dead-center of the textile system.
6.	System attachment to cable or U-Track shall be made using Gliders spaced no further than 12 inches apart.
7.	Available for diameters from 8” – 60”.
8.	Not available for natatorium applications.
9.	One row suspension options(must specify if multiple on same project)
a.	 Cable suspension hardware to include cable, eye bolts, thimbles, cable clamps, and turnbuckle(s) as required.
1.	Cable suspension options(must specify if multiple on same project)
a.	Galvanized steel cable
b.	Stainless steel cable
2.	Support lengths available in 5’(standard), 10’, 15’, & 30’.
b.	U-Track suspension hardware to include 8’ sections of aluminum track, aluminum splice connectors, track endcaps and vertical cable support kits – consisting of a length of cable with cable connectors.  Radius aluminum track must be included for all horizontal/flat radius sections.
1.	U-Track suspension options(must specify if multiple on same project)
a.	Galvanized steel cable
b.	Stainless steel cable
2.	Support lengths available in 5’(standard), 10’, 15’, & 30’.

B.	TEXTILE
1.	Opti-X
a.	Antimicrobial Construction: Polyester with antimicrobial treatment proven to remain beyond 75 laundering cycles 
b.	Anti-Static Construction: Filament polyester with interwoven electrostatic-dissipative (ESD) yarns to remain effective 250 laundering cycles or the life of the product.  
c.	Non-Shed Clean Room Grade: Class 5 ISO or higher filament/filament polyester weave 
d.	Inlet: Clean design with no cover belt and quick disconnect  
e.	Code:  Built in accordance with UL 2518 and ULC.
f.	Air Permeability
1.	The air permeability of the fabric must NOT be created by perforating the fabric.
2.	The air permeability must be confirmed be third party testing to eliminate the formation of condensate on the fabric
a.	Opti-X 
i.	3 (+1/-1) CFM/ft^2 (15L/s/m2 @ 125Pa) per ASTM D737, Frazier
b.	Opti-X 13
i.	13 (+2/-2) CFM/ft^2 (66L/s/m2 @ 125Pa) per ASTM D737, Frazier
c.	Opti-X 29
i.	32 (+3/-3) CFM/ft^2 (147 L/s/m2 @ 125Pa) per ASTM D737, Frazier
g.	Weight 
1.Opti-X	
a.	3.1 oz. /yd^2 (105g/m^2) per ASTM D3776
2.	Opti-X 13
a.	2.6 oz. /yd^2 (88g/m^2) per ASTM D3776
3.	Opti-X 29
a.	2.5 oz. /yd^2 (85g/m^2) per ASTM D3776
h.	Warranty:  10 year standard or 5 year high wash down applications
2.	Textile Color
a.	Standard: white & silver
b. custom 

B.	TEXTILE SYSTEM FABRICATION REQUIREMENTS:
a.	Textile system to be constructed in modular lengths (zippered) with proper radial securing clips (inlets, endcaps and mid-sections) and top access zippers for tension lock attachments.
b.	Integrated air dispersion shall be specified and approved by manufacturer. (select only those that apply)
i.	Linear Vents
1.	Air dispersion accomplished by linear vent and permeable fabric.  Linear vents must be sized in 1 CFM per linear foot increments (based on .5” SP), starting a 1 CFM through 90 CFM per linear foot.  Linear vent is to consist of an array of open orifices rather than a mesh style vent to reduce maintenance requirements of mesh style vents.  Linear vents should also be designed to minimize dusting on fabric surface.
2.	Size of vent openings and location of linear vents to be specified and approved by manufacturer. 
ii.	Orifices
1.	 Air dispersion and extended throws are accomplished by reinforced orifices and permeable fabric. Reinforced laser-cut orifices retain the integrity of the opening and withstand laundry processes.
2.	Diameter, quantity, and location of reinforced orifices to be specified and approved by manufacturer.
c.	Inlet connection to metal duct via fabric draw band with anchor patches as supplied by manufacturer.  Anchor patches to be secured to metal duct via. zip screw fastener – supplied by contractor.
d.	Inlet connection includes zipper for easy removal / maintenance.
e.	Lengths to include required intermediate zippers as specified by manufacturer.
f.	System to include Adjustable Flow Devices to balance turbulence, airflow and distribution as needed.  Flow restriction device shall include ability to adjust the airflow resistance from 0.06 – 0.60 in w.g. static pressure.
g.	End cap includes zipper for easy maintenance.
h.	Each section of the textile shall include identification labels documenting order number, section diameter, section length, piece number, code certifications and other pertinent information. 

C.	DESIGN PARAMETERS:
a.	Textile air diffusers shall be designed from 0.25” water gage minimum to 3.1” maximum, with 0.5” as the standard.
b.	Textile air diffusers shall be limited to design temperatures between 0 degrees F and 180 degrees F (-17.8 degrees C and 82 degrees C).
c.	System overall design; diameter, length, airflow, operating static pressure and dispersion shall be designed or approved by the manufacturer.
d.	Do not use textile diffusers in concealed locations.
e.	Use textile air dispersion systems only for positive pressure air distribution components of the mechanical ventilation system.  

PART 3 – INSTALLATION

3.1	INSTALLATION OF TEXTILE AIR DISPERSION SYSTEM:
A.	Install chosen suspension system in accordance with the requirements of the manufacturer.  Instructions for installation shall be provided by the manufacturer with product.

3.2	CLEANING AND PROTECTION:
A.	Clean air handling unit and ductwork prior to the DuctSox system unit-by-unit as it is installed.  Clean external surfaces of foreign substance which may cause corrosive deterioration of facing.
B.	Temporary Closure: At ends of ducts which are not connected to equipment or distribution devices at time of ductwork installation, cover with polyethylene film or other covering which will keep the system clean until installation is completed.
C.	If DuctSox systems become soiled during installation, they should be removed and cleaned following the manufacturers standard terms of laundry.

***END OF SECTION***

© DuctSox Corporation	SkeleCore Pull-Tight with Opti-X	3/2022