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Answer
What is the base material of a 299 and 299F strike?
Resolution:
299 strike = Zinc 299F strike= Stainless steel:
SPECIAL LAMINATE MATERIAL
Resolution:
SLM:
GLAZING MATERIAL
Resolution:
Glass; cauling:
Can the Schlage L or LP section key blank be cut in the field?
Resolution:
Schlage does not recommend cutting the L or LP section key blanks in the field. Below are some details.Non Primus:In the classic family of keyways the "L" key section is the highest level key...:
What are the door cores A, B, C, D, E & F per SDI 100?
Resolution:
These references are from an old and outdated SDI 100 specification. The new specification SDI 100 ANSI A-250.8 does not contain letter designations for core material. Core constructions designat...:
What ligature resistant trim is available on the ND or L9000?
Resolution:
High Risk Areas*Patient bedroomIn-suite bathroomIn-suite closetTime-out roomPatient difficult to manage; or risk of solitary and/or unsupervised areas.Medium risk areas*Living roomDining roomGroup ...:
Magstripe
Resolution:
Magnetic Stripe Cards, a card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band of magnetic material on the card. The magnetic stripe card is read b...:
What do you do if rust spots show up on steel doors and frame material?
Resolution:
During the construction cycle, spot rust is usually attributed to either material handling damage or improper storage of the material on the jobsite. The material must be repaired and repainted as ...:
What is the maximum glass size available on the T-Series door?
Resolution:
Glass lights are available in fire rated T-Series doors: Limited to one (1) light per door leaf with a maximum of 100 square inches of exposed glass. This applies to all hourly ratings a...:
What causes excessive pinhole rust to start showing up on steel frames?
Resolution:
CAUTION must be used in investigating this problem - In most cases, excessive field rusting of products is caused by improper storage at the jobsite. That situation must be validated prior to refus...:
What is the maximum glass light size available on a 20 minute sidelight frame?
Resolution:
On fire rated transom and/or sidelight frames and fire rated window frames, Steelcraft labeling procedures only control the O/A width and/or height of the frames based on wall condition. The amount...:
Why do frames rust out fast?
Resolution:
Excessive premature frame rusting is caused by improper jobsite installation practices and most likely caused by the following circumstances: :
What is the size of the L and N escutcheon?
Resolution:
The difference between the L and N escutcheons is the size and how they are manufactured. L Escutcheon: 8" x 1 3/4" x 7/16" (203mm x 44mm x 11mm) Cold-forged brass, bronze or stainless steel ...:
Does LCN repair or sell rebuilt closers?
Resolution:
Because of the new extended LCN warranties and the desire to be consistent across the entire Allegion premium brands, LCN will be moving away from offering an out-of-warranty repair service beginni...:
What are Insulclad doors?
Resolution:
Insulclad® entrance door systems are commercial aluminum entrance systems manufactured by Alcoa/Kawneer. Door panels include a layer (1/4" or 1/2" thick) of material added to the push side of ...:
Metal gages and conversions.
Resolution:
Gage and gauge are interchangeable terms. Gage is an archaic numeric value used to define a range of thickness of material. Gage is no longer used in ANSI standards and has been replaced with ...:
Why are frames grouted?
Resolution:
Grouting frames is: A process done in the field during hollow metal frame installation The internal cavity of the frame is fill with masonry or mortar It is intended to mainly provide ...:
ASTM
Resolution:
American Society of testing Materials:
What is ASTM E-119?
Resolution:
ASTM E-119 is a test standard for walls, partitions and floor or roof systems: This test standard is also used for ceramic type glasses when used as window wall and/or borrowed light frames.As...:
MORTISE
Resolution:
Material removed from frame and/or top rail of door:
Cast Aluminum
Resolution:
Material used in producing LCN's competitively priced door closers:
What is a U-Factor?
Resolution:
The U-Factor, R-Value and K-Thermal Rating are measurements of thermal transmission through building products. U-Factor: Overall co-efficient of heat transmission passage through a built-up panel...:
What is the thread size on LCN thru bolts?
Resolution:
The LCN Thru bolts accept 1/4-20 thread. LCN thru bolts are made of steel with zinc plating.:
What frame profile variations are available on fire rated transom sidelights and window?
Resolution:
Elevation frames are available in: F-Series (F16 or F14) FN-Series (FN16 or FN14) MU-Series (MU16, MU14) Additional parameters of the frame components: Perimeter (Head and Jambs) Frame: ...:
Are LCN metal covers a ferrous or non ferrous Material?
Resolution:
All LCN metal covers are steel which is a Ferrous material. FerrousThese are metals which contain iron. They may have small amounts of other metals or other elements added, to give the ...:
Is the 1990 a direct replacement for the 990 Exit device?
Resolution:
Yes, the 1990 is the direct replacement for the 990 devices.:
Is the old Doromatic 1090 the same as a 2090?
Resolution:
Yes, with the exceptions that the 2090 base material is aluminum whereas the 1090 was either brass or bronze base material depending on the finish.:
What causes doors and/or frames to rust?
Resolution:
Prime or painted surfaces which have been scratched or otherwise marred during installation (including field welding) and/or cleaning must be field repaired and re-primed by the installing contractor.:
Why is a bituminous back-coating used?
Resolution:
Some architectural specifications require steel frames to be back-coated with a bituminous coating for corrosion protection or sound control. It is commonly specified to be used in condit...:
Can a filler or cover plate be used to blank out a EPT prep on a fire rated frame?
Resolution:
Yes, a filler plate can be used to cover an EPT prep as long as it is made from the same material as the frame. This information can also be found in NFPA 80 under Chapter 5 for Field Modifications.:
What is the maximum glass light size on a 3 hour (180 minute) fire rated door?
Resolution:
Maximum glass light sizes for 3 hour fire doors is as follows: Wire glass - not approved for use in 3 hour fire doors. Ceramic glass: UL & ITS/WH allow one (1) light with 100 square inc...:
What is the maximum glass light size on a 90 min (1 1/2 hour) fire rated door?
Resolution:
Standard listed wire glass: one (1) light with 100 in2 per door leaf max.Firelite or other appropriately listed glass:• FM maintains one (1) light with 100 in2 per door leaf max.• UL &...:
Are the Pushbar Retrofit Kits (PBKIT) the same for 98/99 and 33A/35A series devices?
Resolution:
A PBKIT is a Pushbar Retrofit Kit.The pushbar retrofit kits are not the same for 33A/35A and 98/99 series exit devices. Depending on the finish of the exit device, the pushbar end caps are di...: