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1、TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 127A - 99 End Closure Location The steel door industry utilizes a variety of end closure treatments in standard doors. The most common are flush type end closures or spotwelded inverted end clo
2、sures. The inverted (legs upward) end closures in many cases creates a necessity to reposition the mounting holes for regular arm closures or surface overhead stops/holders. To avoid interference with the “web” of the top end closure channel, mounting screws must be slightly repositioned. Illustrate
3、d below is the consensus of the Steel Door Institute members showing the location of this channel on standard steel doors. It is suggested that the hardware manufacturer and/or hardware consultant be contacted for resolution of such a conflict. Inverted end closure Reinf. Plate 16 or 18 Gage Top of
4、Door 5/8“ to 13/16“ End Closure TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 127B - 99 Door Edge Cutouts The ability to form a crisp aesthetic cutout in the edge of a steel door, especially in the vicinity of a bend line is directly influ
5、enced by the steel thickness and the proximity of the cutout to the bend line. A cutout too close to the bend line will result in a flare-out of the cutout area due to unevenly distributed stress along the brake die or rollform rollers. The following sketches are intended to convey dimensional limit
6、ations of the hardware items to be mortised into the edge of 1 3/4“ thick standard steel doors. Certain lock fronts, concealed hinges, strikes, or electrical devices exceed these limitations and cannot be accurately or aesthetically formed in steel doors. Their use should be avoided. 1 3/4“ 1 3/4“ 1
7、 1/4“ max. Dimension is to hardware item, not to cutout in door. Minimum distance to cutout is nominally 3x face sheet thickness or 3/16“ minimum. Variable Variable Minimum distance nominally 1.5x face sheet thickness. Minimum distance to hardware item is nominally 1/4“ minimum. Edge seam system var
8、ies by manufacturer (not shown). Cutout limits cutout around corner Cutout limits cutout on edge TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 127C - 99 Frame Cutout Limits The ability to form a crisp aesthetic cutout in steel frames, espe
9、cially in the vicinity of a bend line is directly influ- enced by the steel thickness and the proximity of the cutout to the bend line. A cutout too close to the bend line will result in a flare-out of the cutout area due to unevenly distributed stress along the brake die or rollform rollers. The fo
10、llowing sketches are intended to convey dimensional limitations of the hardware items to be mortised into the face, rabbet or stop of steel frames. Certain concealed hinges, strikes, or electrical devices exceed these limita- tions and cannot be accurately or aesthetically formed in steel frames. Th
11、eir use should be avoided. B A C D A egaG ssenkcihT egnaR A ) . nim( B ) . nim( C ) . nim( D ) . nim( 81“840.“340.“270.“912.“270.“912. 61“850.“350.“780.“912.“780.“912. 41“270.“760.“801.“912.“801.“912. 21“790.“290.“641.“792.“641.“792. Generally, minimum dimension A = 1 1/2 times the material thicknes
12、s. Generally, minimum dimension B = 3 times the material thickness or 7/32“ minimum. TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 127D - 99 Electric Strikes in Stud Walls Stud and drywall construction methods and frame anchorage could res
13、ult in an interference between the stud and electric strike. Notching of the stud could result in compromising the stability of the frame. Dependent on the dimensions of the strike, the cutouts may extend beyond the frame face or the returns, thus leaving critical strike parts exposed. Consideration
14、 should be given to using a strike suitably sized to fit the confines of a standard frame or specifying custom frame profiles to accommodate the strike. Wallboard Wallboard Wall Thickness 2“ Common Standard Area commonly required for strike Door Varies with manufacturer Minimum per NFPA80 Commonly 3
15、/8“ to 5/8“ 1/2“ 2“ Common Standard 1/2“ Wallboard Wallboard Wall Thickness Area commonly required for strike Door Varies with manufacturer commonly 1“ to 1 1/2“ Minimum per NFPA80 Commonly 3/8“ to 5/8“ Commonly 5/16“ to 1/2“ Typical frame profileSlip-on drywall frame TECHNICAL DATA SERIES INDUSTRY
16、ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 127E - 01 Prime Painted Materials Alert Prime Painted Doors, Frames, and Accessories (where applicable) shall comply with the acceptance criteria speci- fied in ANSI A250.10-1998. Doors and frames are cleaned and treated pri
17、or to painting to insure maximum paint adhesion. All exposed surfaces are then given a factory-applied coat of rust inhibiting “direct to metal” type primer. The primer is then baked, air dried, or otherwise cured as appropriate for the product. This process is intended to protect the steel surfaces
18、 for a period of time under reasonable weather exposure conditions. Factory applied primer coatings may be somewhat porous in order to accept finish coatings. The primer coating may therefore be susceptible to the action of moisture or ambient moisture condensation during shipping or storage. For ex
19、ample, transportation of materials in unprotected “open” trucks during inclement weather (rain or snow) or on roadways where salt or other snow melting agents are used will deteriorate the primer. Such moisture problems may result in rusted or water stained areas. ANSI A250.8-1998 (SDI-100) paragrap
20、h 4.1 presents Indus- try recommended jobsite storage requirements. Should the primer become scratched, abraded, rusted or stained, the affected areas will rust unless sanded and reprimed with a suitable “direct to metal” primer containing rust inhibitors. Prior to application of finish coats, the s
21、ubstrate shall again be inspected by the Painting Contractor. All Architec- tural Specification requirements along with all requirements of the paint Manufacturer shall be followed. These will generally include scuff sanding of the substrate to remove foreign materials, scratches or abrasions from c
22、onstruc- tion processes, along with any special or mandatory requirements for primer touch-up or additional primers re- quired by the paint system. MOST IMPORTANTLY, the field applied primer and finish paint “systems” must be designed for direct to metal applications and contain rust inhibiting prop
23、erties. IF COATING COMPATIBILITY IS AN ISSUE, contact the SDI Manufacturers or their local Distributors who can provide information or “sample” materials for the Painting Contractors use. 2001 Steel Door Institute TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - C
24、LEVELAND, OHIO 44145 STEEL DOOR INSTITUTE 2002 Steel Door Institute 127F - 02 Butted Frames Rough Opening Sizes The variety of existing wall anchors available from SDI Members allow Standard Steel Door Frames to be a reli- able option for existing wall, structural steel wall framing or retrofit inst
25、allations utilizing a butted to wall application. In order to make the installation successful, careful consideration shall be given to all tolerances involved and that sufficient clearance is figured to allow for them. It has been “customary” to allow 14“ clearance around the frame perimeter when e
26、stablishing rough opening sizes or when figuring non-standard overall frame sizes. Although this dimensional requirement does not appear in Industry publications, it is based on the following: Both SDI 117-00 and ANSI/NAAMM HMMA 861-00 recognize a + tolerance in opening width and height. (There is a
27、 13“ opening width tolerance that seldom is at issue). Both of these documents recognize a 13“ tolerance in frame face dimensions. The overall frame width tolerance is a “non-critical” issue, therefore it is not addressed in the above Docu- ments. Both ANSI/NAAMM HMMA 861-00 and ANSI/DHI A115.IG-199
28、4 recognize a “ installation tolerance for vertical plumb. Frames will “fit and function” if made to these dimensional tolerances and installed within tolerances. There is, how- ever, relatively no assurance that the substrate (walls) will be of suitable size or alignment. We therefore recommend tha
29、t the rough openings for these cases be no less than “ larger on all 3 sides than the “intended” overall frame size. (Example: 3070 standard frame = 3-4 38“ x 7-2 “). The installer carries the responsi- bility for shimming and aligning as necessary. Gaps are normally sealed as part of the installati
30、on or caulking/painting process. Architectural Specifications are to be consulted to determine the appropriate sealant material to be used at fire door or smoke control frames. TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 STEEL DOOR INSTI
31、TUTE 2002 Steel Door Institute Environmental Considerations Relating to Factory Painted Steel Doors and Frames 127G - 02 There is an Industry need for a comprehensive revision of specifications, practices and procedures that will allow compliance with existing and future regulations. The member comp
32、anies of the Steel Door Institute have taken the steps needed to eliminate from their primers, those elements identified by regulatory authorities as hazardous to human health and the environment. This is not only a moral responsibility toward society, but also a survival respon- sibility toward the
33、 business. The SDI encourages specification writers to look at these issues very carefully when they specify coating requirements. Federal and State Laws have regulated the management of hazardous waste so as to not pose a threat to the environment or human health. Environmental Protection Agencies
34、are very strict in regulations that affect coating applications, by limiting the emission to the atmosphere of the amount of VOC (Volatile Organic Compound), which has affected, very drastically, the use of solvent base paints. Section 313 of the Emergency Planning and Community Right-to-Know Act (T
35、itle III) sets up the reporting require- ments in the metal fabricating industry for all wastes containing any listed toxic chemical, which affects the use of heavy metals (such as Zinc-Chromates) as rust inhibitors. TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD
36、- CLEVELAND, OHIO 44145 STEEL DOOR INSTITUTE 2002 Steel Door Institute 127H - 02 Water Penetration Borrowed lite assemblies, transom, sidelite, and combination transom sidelite frames are not factory sealed to pre- vent water penetration. In situations where water penetration is a concern, the contr
37、actor must seal all joints that are exposed to the elements after the frame assembly is installed. Whenever possible, it is strongly recommended that glass and glazing be installed on the exterior rabbet of the frame assembly. This will help act as a deterrent to water penetration. The member compan
38、ies of the hollow metal industry can not control the workmanship associated with the frame instal- lation; therefore, it is the responsibility of the installer to assure all steps are taken to prevent water penetration. TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT RO
39、AD - CLEVELAND, OHIO 44145 STEEL DOOR INSTITUTE 2004 Steel Door Institute 127 - 04 Grouting Frames in Drywall Some Architectural Specifications require frames in stud and drywall partitions to be filled with grout for sound deadening or to enhance structural integrity. The STEEL DOOR INSTITUTE is op
40、posed to this practice for the following reasons: ANSI A250.8-2003 (also 1998) paragraph 4.2.2 and ANSI A250.11-2001 paragraph 2.2 both address the question of grouting frames. The paragraph cited in ANSI A250.8 gives a bit more information on the problems related to moisture in grout. In drywall co
41、nstruction, this moisture has two places to go. It can soak into the drywall, potentially destroy- ing its cohesive integrity and thus the ability to retain anchors or frame integrity, or it can leach downward where it will cause premature rusting of anchors, screws, stud connections, bottom of fram
42、es, etc. Grouting does not appreciably afford any additional structural rigidity to the frame. As an example, slip- on drywall frames have passed fire and hose stream tests, cycle tests, and in some cases impact tests without being grouted. If the intention is for sound deadening, SDI 128-97 (Sectio
43、n 3) should be consulted. In addition, the same insulation as used between wall studs (generally lightly packed fiberglass) will serve as a sound deadener without the potential for damage to the frame or wallboard. It is therefore the opinion of the STEEL DOOR INSTITUTE that grouting should never be
44、 specified for drywall construction. TECHNICAL DATA SERIES INDUSTRY ALERT S D I STEEL DOOR INSTITUTE 30200 DETROIT ROAD - CLEVELAND, OHIO 44145 STEEL DOOR INSTITUTE 2004 Steel Door Institute 127J - 04 Bituminous Back-Coating of Frames Some Architectural Specifications require steel frames to be back
45、-coated with a “bituminous” coating for corrosion protection or sound control. Bituminous is an archaic term for a coating or emulsion con- taining fibrous or non-fibrous asphalt. Other than for a few selective uses unrelated to steel frames, it is not readily available. A more modern replacement fo
46、r this material is automotive undercoating. It is the recommendation of the STEEL DOOR INSTITUTE that this coating SHALL NOT be applied at the factory or any location other than the jobsite. The coating never fully dries; leaving a dark residue that can be transferred to the frame during transportat
47、ion, storage, or handling prior to final installation. ANSI A250.8-2003 (also 1998) limits factory applied coatings to either factory prime finish (2.1.3) or factory-applied finish paint (2.1.4). For corrosion protection, ANSI A250.11-2001 paragraph 2.2 clearly states that “the contractor respon- si
48、ble for installation” applies corrosion resistant coatings only where specified for anti-freezing agents in plaster or mortar. For sound control purposes, it is less damaging to the frame finish and more expedient for “the con- tractor responsible for installation” to extend the insulation material
49、used in the adjoining wall into the frame. This creates an unbroken barrier to the passage of sound. AVAILABLE PUBLICATIONS Specifications ANSI/SDI A250.6 Recommended Practice for Hardware Reinforcings on Standard Steel Doors and Frames ANSI/SDI A250.8 SDI 100 Recommended Specifications for Standard Steel Doors & Frames SDI-108 Recommended Selection & Usage Guide for Standard Steel Doors SDI-109 Hardware for Standard Steel Doors & Frames SDI-118 Basic Fire Door Requirements SDI-128 Guidelines for Acou
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