Algoma’sAcousticaldoors weretested
asoperating unitsin acomplete system
withhollow metalframing back-filled
withmortar, gasketing,drop sealand
threshold,where applicable— the
sameas suppliedto thejobsite —thus
ensuringthat thespecified STCratings
areachieved.
Sound Transmission Class (STC)
40 Acoustical doors should be used
wherever the degree of sound
insulation desired is higher than an
ordinary solid core door can provide.
Ifa stillhigher degreeof sound
reductionis required,such asin
hospitals,doctors’ officesor conference
rooms,the STC45 Acousticaldoor may
bespecified.STC 43Acoustical doors
areavailable foropenings whichrequire
bothsound controland 1/3-hourfire
ratings.
Whenjob requirementsinclude doors
withglass openings,STC 39Acoustical
doorsare available,non-labeled.
Andfor communicatingdoors, aSTC-
54rating isachieved whentwo STC-40
Acousticaldoors areinstalled back-to-
backin thesame opening.
Testingwas conductedby Riverbank
AcousticalLaboratories inaccordance
withASTM E90-90and E413-87.
Algoma uses only face veneers
at least .020
"
(0.5mm) thick at
12% moisture content.
Thickness 13⁄4" (44mm)
Maximum size Non-labeled singles up to 4'0" x 10'0" (1220 x 3050mm) and pairs up to 8'0" x 10'0". In FD 1⁄3hour, 4'0" x 8'0" (1220 x
2440mm) singles and 8'0" x 8'0" in STC-28 and STC-43. STC ratings not verifiable in pairs. STC-43 available in 1/3 hour
Category B.
Stiles (Edge bands) 47⁄8" (124mm) prior to factory trimming, veneer banded.
Special edge treatments Polymer edges for better impact resistance available.
Top & bottom rails 47⁄8" (124mm) prior to factory trimming. Structural composite lumber.
Core Special core construction with acoustical dampening materials.
Hardware Reinforcement None required.
Faces All foreign and domestic species and medium density overlay. Face veneers are a minimum of .020" (0.5mm) thick at 12%
moisture content. All faces to be per WDMA I.S.1-A face grades unless otherwise specified.
Adhesives Doors constructed using water-resistant adhesives (Type 2).
Veneer matching Pairsormatching transomsnon-labeled.Note:Pairs anddoor/transomunitshave notbeentestedand maynot
maintainSTCratings.
Details STC 39 doors with acoustical lites not to exceed 400 sq. in. (0.258m2) visible glass with an acoustical lite kit, gasketing
and double-glazed glass. Factory glazing required. Applied molding not available. Lites not allowed in fire rated STC-43.
Machining Available with hinge and lock machining as well as other hardware. Factory machined for drop seal.
Finishing Available in finishes with performance characteristics equivalent to WDMA System TR-6, standard or custom
colors. Also available primed, sealed, or sealed top and bottom edges only. Opaque finish (OP-6) on medium density overlay
only.
Warranty For interior, full warranty for life of original installation.
Standards met or exceeded WDMA I.S.1-A Series, ARCHITECTURAL WOOD FLUSH DOORS. Architectural Woodwork Quality Standards Section 1300,
Architectural Flush Doors and Section 1500, Factory Finish. Tested by Riverbanks Acoustical Laboratories in accordance with
ASTM E90-90 and E413-87 as operating units rather than “sealed in place.”STC ratings are verifiable only on single doors.
Special services Gasketing and drop seal are supplied with doors. Threshold supplied with STC 45, STC 43 and STC 39 doors.
Positive Pressure Category B: Singles and pairs require a category G edge seal applied to the frame. Pairs also require a category G edge seal
applied to one of the meeting edges.
Product Features
SR Acoustical & Acoustical FD 1⁄3Hour Door
(Neutral or Positive Pressure)
STC 40/STC 45
STC 43 with 1/3 Hour Label
STC 39 with Lite Opening
