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Product Details

Pair of Metal Doors with One Leaf Active

Type: Acoustical
Perimeter Seal: Single "H" Gasket
Bottom Seal: Super "H" Door Bottom
Door Thickness: 1.875" / 47.625mm
Min Frame Depth: 4.75" / 120.65mm
Max Leaf Size: 48" x 96"
STC Rating: 50
Max Fire Rating: 1-1/2 hr

Pair of Metal Doors with One Leaf Active

Type: Acoustical
Perimeter Seal: Single "H" Gasket
Bottom Seal: Super "H" Door Bottom
Door Thickness: 1.875" / 47.625mm
Min Frame Depth: 4.75" / 120.65mm
Max Leaf Size: 48" x 96"
STC Rating: 50
Max Fire Rating: 1-1/2 hr
Transmission Loss in dB/Hertz - 1/3 Octave Bands
100
29
125
31
160
33
200
33
250
36
315
43
400
48
500
49
630
52
800
54
1000
54
1250
56
1600
56
2000
59
2500
61
3150
61
4000
61
5000
59

Isolated Edge Construction

This door uses an Isolated Edge construction, which separates the two outer door skins from each other. A strip of neoprene is installed between the two door skins, reducing the amount of sound transmission through the actual steel faces. The seal is notched between the hinge and lock cutouts and does not interfere with hardware cuts.

Overlapping Astragal at the Meeting Stile

This is our most common astragal used with 1-3/4" thick doors.  It is used when one door leaf of a pair of doors is designated as an inactive leaf.  It is surface mounted to the leading edge of the inactive leaf.  Although raised head fasteners are standard, countersunk fasteners are available.  Be sure to mention this when ordering.

 

Single "H" Perimeter Seals

This door is equipped with our patented single Super "H" door sealing system. It consists of a single compression type perimeter seal, along with a metal retainer and cover. Compression seals typically offer higher acoustical ratings The seal is composed of a felt/neoprene combination that forms a tight perimeter seal.

Super "H" Door Bottom

Overly's super "H" door bottom is the only choice for unbeatable sound control. Always used in conjunction with our cam-lift hinges, this door bottom compresses tightly against the floor. We recommend smooth level sealing surfaces for this door bottom. Uneven or abrasive flooring may prematurely wear the door bottom. A smooth raised threshold is recommended when  using this door bottom.

UL Fire Ratings

In addition to acoustical testing, Overly has successfully tested this product to the latest UL fire test standards, including UL 10B (neutral pressure), UL10C/UBC 7-2 (positive pressure).

Isolated Edge Construction

This door uses an Isolated Edge construction, which separates the two outer door skins from each other. A strip of neoprene is installed between the two door skins, reducing the amount of sound transmission through the actual steel faces. The seal is notched between the hinge and lock cutouts and does not interfere with hardware cuts.

Single "H" Perimeter Seals

This door is equipped with our patented single Super "H" door sealing system. It consists of a single compression type perimeter seal, along with a metal retainer and cover. Compression seals typically offer higher acoustical ratings The seal is composed of a felt/neoprene combination that forms a tight perimeter seal.

Super "H" Door Bottom

Overly's super "H" door bottom is the only choice for unbeatable sound control. Always used in conjunction with our cam-lift hinges, this door bottom compresses tightly against the floor. We recommend smooth level sealing surfaces for this door bottom. Uneven or abrasive flooring may prematurely wear the door bottom. A smooth raised threshold is recommended when using this door bottom.

UL Fire Ratings

In addition to acoustical testing, Overly has successfully tested this product to the latest UL fire test standard UL10C/UBC 7-2 (positive pressure).

Recommended Hardware:

Locks:

MortiseANSI A156.13 Series 1000 Grade 1
3" maximum rosette diameter
Suggested Models:
  • Best 35H
  • Sargent 8200
  • Schlage "L" Series
  • Corbin / Russwin ML2000

Exit Devices:

MortiseANSI 156.3, Grade 1
3" maximum case width
Suggested Models:
  • Sargent 8300
  • Von Duprin 9875/9975
RimANSI 156.3, Grade 1
Suggested Models:
  • Sargent 8800
  • Corbin/Russwin ED6200
  • Von Duprin 98/99

Flush-Bolts:

6-3/4" x 1"ANSI 156.16
Suggested Models:
  • Ives 458
  • Rockwood 555

Hinges:

Full Mortise Cam-Lift
Suggested Models:
  • Overly MCL-500

Thresholds:

Saddle
Must have smooth top, no ridges or grooves
Suggested Models:
  • Reese S105
  • Pemko 154
  • NGP 412
  • Zero 164

Closers:

Surface MountedANSI 156.4 Grade 1
Rigid arms are not recommended.
Suggested Models:
  • Corbin/Russwin DC2000, DC3000, DC4000
  • Dorma 8600, 8900
  • LCN 4010, 4020, 4041 Super Smoothie
  • Norton 7500, 8500
  • Sargent 250, 251, 350, 351, 1230, 1231, 1250, 1251

Support Documents:

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