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RF Shielded Rooms FAQ
Universal Shielding Corp Logo 

RF Shield Room Frequently Asked Questions

Series 26 Solid Wall Shield Room

Series 44 Copper Screen Shield Room

RF Shielded Room

 

Copper Screen Shield Room

 

USC-26 TYPICAL ATTENUATION

Magnetic

21 dB at 1 kHz

 58 dB at 15 kHz

 90 dB at 100kHz

Electric

100 dB 15 kHz to 50 MHz

Plane Wave

100 dB  50 MHz to 10 GHz

Microwave

100 dB at 10 GHz

100 dB at 40 GHz

 with options

USC-44 TYPICAL ATTENUATION

Magnetic

15 dB at 1 kHz

 40 dB at 15 kHz

 >50 dB at 100kHz

Electric

> 80 dB at 1kHz

 100 dB 15 kHz to 10 MHz

Plane Wave

100 dB at 400 MHz

 >85 dB at 1 GHz

 >75 dB at 2 GHz

Microwave

60 dB at 10 GHz

What is the standard panel configuration for a Series 26 room ?

The floor, ceiling and wall panels are solid wall Series 26 panels

 

RF Shieled Panel cutaway
 
RF Shielded Room Outside Corner
 
RF Shielded Room Inside Corner

What is the standard panel configuration for a Series 44 room ?

The floor and lower panel are solid wall Series 26 panels

The ceiling and upper walls are copper screen Series 44 panels

 

Close Up of Copper screen Panel

How much does a Series 26 panel weigh ?

Standard Panels weigh ≈ 4.8 lbs / ft²

 4' x 8' panel weighs 153 lbs

 4' x 10' panel weighs 192 lbs

 4' x 12' panel weighs 230 lbs

Lightweight Solid Panels weigh ≈ 2.0 lbs / ft²

 4' x 8' panel weighs 64 lbs

 4' x 10' panel weighs 80 lbs

 4' x 12' panel weighs 96 lbs

How much does a Series 44 panel weigh ?

The panels weigh ≈ 2.1 lbs / ft²

 4' x 8' panel weighs 67 lbs

 4' x 10' panel weighs 84 lbs

 4' x 12' panel weighs 100 lbs

How much does a Series 26 shield room weigh ?

The shield room weighs ≈ 6 lbs / ft² of shielding

a 10' L x 10' W x 10' H shield room has 600 ft² of shield and weighs ≈ 3600 lbs

 

For total load the finished shield room weighs ≈ 7 lbs / ft² of shielding a 10' L x 10' W x 10' H shield room has 600 ft² of shield and weighs ≈ 4200 lbs

How much does a Series 44 shield room weigh ?

The shield room weighs ≈ 4 lbs / ft² of shielding

a 10' L x 10' W x 10' H shield room has 600 ft² of shield and weighs ≈ 2400 lbs

 

For total load the finished shield room weighs ≈ 5 lbs / ft² of shielding a 10' L x 10' W x 10' H shield room has 600 ft² of shield and weighs ≈ 3000 lbs


Questions Common to all Shield Rooms

What is needed to off load the shield room material ?

If you have a loading dock: Best is a forklift, next best is a pallet jack, last resort a lot of strong people (Not recommended) Pry bars, chains or straps to drag the crates from the front of the truck to the back, so you can get it on lift or jack.

If you don't have a loading dock : Best is a forklift, next best is a pallet jack (delivery truck must have a lift gate), last resort a lot of strong people (Not recommended) Pry bars, chains or straps to drag the crates from the front of the truck to the back, so you can get it on lift or jack.

I have no way of off loading the shield room material ?

Let us know before you place the order, we can provide a delivery truck with a lift gate or a fork lift.

If you want us to handle all of the material handling, please let us know (before you place the order).

How is the room shipped to us ?

The door is fully assembled and crated (single leaf doors)

The Series 26 panels are stacked and palletized

The Series 44 panels are crated

The remainder of shield room components are crated

If your room requires I-Beam structural steel it will be bundled

In most cases it is delivered in a closed weatherproof truck

Crates on Truck Crates In Truck
   
Shield Room Crates  

How many shipments should I expect ?

In most cases you will receive 2 shipments

The first shipment will be the palletized USC-26 panels

The second shipment will be the crated room components

Can I store the shield room crates and panels outside until the installation crew arrives ?

Yes, but it must be completely covered by a weatherproof cover and off of the ground. Any water damage to the components is your liability.

I have no place to store the shield room components, what do I do ?

Just let us know before you place the order, we can arrange for the material to be stored at a local transfer facility near your location and then deliver them to your facility.

You can also have the installation crew off-load the material (optional) and build the shield room.

Do the power & I/O filters go on the inside or outside of the shield room ?

In most cases, the filters are designed to go on the outside of the shield room.

EMI Power Filter Drawing
 
EMI Power Filter

How much does the crated shield room door weigh ?

Steel Door Frame

3.0' x 7.0' RCM-154 weighs 675 lbs   (800 lbs crated)

4.0' x 7.0' RCM-154 weighs 765 lbs   (890 lbs crated)

4.0' x 8.0' RCM-154 weighs 900 lbs   (1025 lbs crated)

6.0' x 7.0' RCM-154 Double Door weighs 1200 lbs (crated in 2 or 3 crates)

How much weight will the floor panels handle ?

The USC-26 floor panels are rated at 400 PSI maximum.

We recommend that you do not exceed 250 PSI (Pounds per Square Inch)

How flat must by your parent room floor be ?

Your parent room floor must be flat and level within 1/4" every 10' (Non-Accumulative)

Can I mount light fixtures, boxes, etc to the shield room walls ?

Yes, you can anchor on the inside or the outside of the shield room walls.

Please use  ≤ 5/8" screws  (We recommend self drilling screws)

 

Self Drilling Screw

 

 Self Drilling Screw

 

Self Drilling Screw

 

 

Don't drill through wall

How do I wire my RF shield room ?

You can use standard commercial electrical components. We do recommend metallic conduit, fixtures, boxes, etc., this cuts down on any radiated or conducted RF signals generated by the equipment you have installed in the shield room.

Due to the various City, State and Local electrical code variations, we recommend a local certified electrical contractor do the installation of the electrical system.

We recommend braided or multi-strand copper wire or strap for the grounding of the shield room (from ground stud to earth ground)

 Ground Strap

What is the Sound Transmission Coefficient (STC) rating of the rooms?

Series 26 solid panels have an STC rating of 30 

Series 44 copper screen panels have no STC rating 

What door swings are available ?

Universal Shielded Door Swing Key

RHO - Right Hand Out Swing

From inside the shield room, handle on the left, hinges on the right, door swings outward

LHO - Left Hand Out Swing

From inside the shield room, handle on the right, hinges on the left, door swings outward

RHI -  Right Hand In Swing

From inside the shield room, handle on the left, hinges on the right, door swings inward

LHI -   Left Hand In Swing

From inside the shield room, handle on the right, hinges on the left, door swings inward

Can I put fluorescent lights in my shield room ?

Yes, but commercially available fluorescent lights do generate RF interference. We recommend incandescent lights. Special RF shielded fluorescent lights are available, but they are expensive.

How do I clean and lubricate the Fingerstock and RCM mechanisms ?

    TriFlow Lubricant

 

Web Link

SKU: TF29200
Size: 18oz Trigger Spray

Tri-Flow® Superior Lubricant is a superior, light viscosity lube that allows for deep penetration into hard to reach moving parts.

The trigger action spray allows you to blast into areas that need lubrication.

High-grade petroleum oils provide optimum lubrication under extreme temperatures (-60 to 475°F) and humidity.

Formulated solvents soften and remove dirt and contaminants, while special additives displace moisture and prevent rust and corrosion.

Formulated with P.T.F.E.
How do I put floor tile on the shield room floor ?

USC Floor Joint

Universal Floor Joint

   Universal Floor with Tile

You can purchase 12" x 12" x 1/8", peel & stick, vinyl floor tile from your local big box home improvement store. Then just clean off the floor panel area and peel off the backing of the tile and fill in the area between all of the joint framing members. You will need a straight edge and razor knife or tile cutter to cut the tile to size.

How do I put floor tile on the shield room floor,

so there are no framing members showing ?

Floor Detail

Fill in the area between the floor framing members with 3/16" or 1/4" thick hardboard. You can glue or screw the hardboard to the floor. Then cover the entire floor with 1/4" to 3/4" thick plywood or tile board (DO NOT use particle board). Again you can glue or mechanically fasten the plywood to the hardboard or floor panel. Then you can use any tile you desire to completely cover the floor (ESD Tile, Vinyl Tile, Ceramic Tile, Etc.) You can also put carpeting on top instead of tile.
Joint Detail
 
Joint Detail


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