How to build a temporary soundproof wall

This method won’t block the noise entirely. Do not pressure-mount the wall between the floor and ceiling. Apply a base coat after the primer dries out and let it dry. They determine how sound interacts within and outside your workspace. Temporary soundproof walls have materials that absorb the sound and make it comfortable for those on either side of the room. All temporary walls are painted with two coats of Benjamin Moore paint in your choice of white, China white, linen white, or white dove in a flat finish. It’s all done by pressure. Resilient channels are type of metal railings that are designed to isolate sound waves and prevent them from penetrating through surfaces. This produces a complete soundproofed wall. Mar 31, 2024 · Seal any gaps or cracks in the box to prevent noise leakage. May 30, 2024 · Use Decoupling. Aug 30, 2023 · Using a bookcase is a non-intrusive solution to soundproof walls in your living space. 4 days ago · This frame should fit snugly inside your window gap. Whether you are a homeowner looking to create a room divider in a loft space or kids bedroom, an office looking to install demountable Steps on how to build a temporary pressurized wall. Measure between the bottom plate and the top plate. Eliminating Reflected Noise. Acoustic floor tiles. Temporary walls generally have air gaps that soundwaves can pass through. Utilize a premium acoustic sealant 2. Cutting on top of scrap wood would be wise to May 22, 2022 · Polycarbonate sound dividers can also be cleaned very easily, unlike acoustic panel wall partitions. Temporary soundproof wall panels might be the answer to your problems. Generally, condo walls tend to be thinner than apartment walls, and thus soundproofing a shared wall in a condo will require more amounts of MLV than an apartment wall. Its advantages include: Compatible with SwiftWall Pro. When aiming to soundproof a room, incorporating insulation batts in your wall voids is a highly effective strategy. If you don’t like the look of commercial sound-reducing products and have extra space, adding large furniture, such as a bookcase filled with a combination of books and décor, can also help soundproof a room. NO damage to doorway or walls. Best Acoustic Room Dividers and Portable Soundproof Walls 1. Install the soundproofing system over the barrier layer. Installs 5X faster than studs and drywall. 4. Soft materials (carpet, drapes, or furniture) in your room will increase the percentage of the sound absorbed from what is shown. By building an additional, temporary wall in front of the existing wall, you will be increasing the space between your space and the noise. Discover an expansive selection from Screenflex, ranging from dynamic room dividers and soundproof partitions to versatile portable walls, folding office partitions, and innovative acoustic solutions, tailored to redefine your space and amplify productivity. Build the wooden frame using 2x4s, accounting for ceiling height and necessary width. Building a Temporary Soundproof Wall Panel When it come­s to achieving a temporary soundproof wall solution in one's apartme­nt, constructing a soundproof wall panel emerge­s as an effective and Jan 27, 2021 - Build Temporary Soundproof Wall Panels - Movable and Damage-free: Make a movable temporary soundproof wall between rooms. Use acoustic room dividers. Place Insulation Batts in Wall Voids. . Decoupling refers to reducing the surface area between your listening room and the rooms around it. Suspend it on a curtain rod and hang it on tall furniture, or install curtain tracks. For us, those were 5/16” deep, a little less than half the thickness of the board. Adding an extra layer to your plywood walls, just like the ones mentioned above, will help you reduce the external noises that can get through them. Place your furniture strategically. He painted both sides—no spackling or sanding needed—and the walls were done. These walls are sturdy enough to mount a flat screen tv. Jun 27, 2022 · Keeping the factors above in mind, our list of the 7 best soundproof room dividers reads as follows: Versare Versapanel Acoustic Room Divider (Our Pick) The Quiet Quilt 2-Sided Barrier Blanket (Best For Reducing Bass) Moondream Sound Insulation Curtain (Best Curtain Option) May 29, 2024 · First, remove the drywall from the existing ceiling. curtains are one of the best/cheapest materials to minimize echoes and this wil further reduce sound. Step 4: Add a handle to the frame so you can easily insert and remove the plug. Suspended ceiling systems with sound-absorbing tiles can also be effective in creating a quieter environment. Set up a separate acoustic barrier outside. T. Err on the side of cutting them a little deep, so the frame fits together around the foam. Mar 16, 2020 · Here are the 9 best ways to soundproof a party wall. Start by drilling pilot holes to prevent cracking the bottom plate or the floor. Using An Acoustic Sealant. It’s a wall that’s installed to divide a room and create private space. Apr 23, 2023 · Screw the bottom wall plate to the floor with 2-1/2-inch screws. Transfer the measurement to a stud, then cut the stud with the saw. How to soundproof a flex wall using drywall. Determine a suitable place for the wall in between floor and ceiling joists that can safely support the weight. Put carpets on the floor. 1: Add dense mass to the walls, doors and floors. You do not fix the hat channels directly to the joists because that will impede their ability to work properly. The SwiftWall system is lightweight, easy to transport, easy to build, and easy to tear down saving on time, money, and waste. Pads: Slipping a dense rug pad underneath will boost the rug's noise-muffling potential. Pay special attention to the exhaust pipe area and use soundproof exhaust tubing to reduce noise further. Make sure that, as you work, you don't leave gaps between the sheets. Acoustics foam panels are mostly used in restaurants, offices, and studios. Hang soundproof curtains. Hang Soundproof Curtains. Then, stretch a tape measure from floor to ceiling at both ends of your chosen location. Soundproof underlayment. +1 (646) 494-5480 info@temporarywallsnyc. They can infiltrate your walls. These 9 ch Oct 18, 2023 · If you are experiencing noise issues at your apartment because of sound coming from outside the building, the first step is to soundproof the windows. Install acoustic panels between the rails of the soundproofing system. Measure the height of the space where you want your wall to go. P. Adding another layer of drywall on top of our existing wall is one of the easiest ways of accomplishing this. Apr 20, 2024 · Area rug: Place an area rug in the center of the room to absorb sound for a quieter room. Fasten them using small screws and at 10 inches apart. Step 2 - Put a layer of cardboard on top of the ground to protect it from moisture and make it easier to clean up after the project. Soundproof Blankets. Start by deciding how long your wall will be and write this dimension down on a sheet of paper. The best (but costlier) way to soundproof an apartment wall is to put up another layer of drywall and to install a layer of mass loaded vinyl (MLV). Use soundproofing clips to clasp the hat channels apart from the joists and drywall. Another budget-friendly solution is to get thick soundproof curtains. Check out the latest labor day-saving at The Home Depot https://homedepot. Measure a length of MLV that will reach floor to ceiling and then cut out a sheet with the scissors or utility knife. The soundproofing dampens conversations and music. Warning. At least you’ll be able to bring it with you and reuse it at your next residence. Another effective temporary soundproof room idea is attaching acoustic foam panels to the walls. Make sure the fit is snug to maximize the material’s soundproofing capabilities. Ensure that the tubing is properly connected and sealed. To prevent that from happening, apply acoustic sealant or caulk in the holes to fill them, creating an airtight seal. 3. Acoustic window inserts. Incorporating green glue noiseproofing compound between layers will make it even more effective, Chung-Sao says. Remove existing drywall and baseboards. Seal All Penetrations And Possible Sound Leaks. Apply silicone acoustical sealant. Typically, they’re made of hardened acoustic fiberglass specially designed to be soundproof. Seal the bottom of your garage door with a bottom seal and a threshold seal. The outdoor noise barrier wall is perforated on one face, and the Apr 3, 2024 · Cut the vertical studs with the electric miter saw. Eliminate Echo In Hallway. Here’s how he put them up: First, he screwed together frames of clear pine. Free Acoustic Step 3: Cut the Frame Pieces. Cover the wall with plywood or drywall. Non-hygroscopic expanded PVC skins for smooth surface on both sides. When cutting the studs, subtract 3 inches from the room height to allow for the thicknesses of the top and bottom plates. Soundproofing the walls can limit outside noise from reaching the inside of your metal building, which is useful when living near a major road or highway. Windows, especially older single-pane windows, allow a lot of noise to enter the room, but there are numerous options for soundproofing windows of all sizes. I'd suggest you need to discuss and decide how temporary this installation is to be. This makes them the best choice for any locations that experience a lot of mess since they can be sprayed and wiped down without any adverse effects. Choosing the right flooring can significantly impact the soundproofing of your booth. Acoustic Foam Panels. Walls can transmit both impact noise and airborne noise, although this won’t be as much of a problem with exterior walls. Sealing the air gaps to the outside will cause less sound to bleed into and out of the garage, as well as make the space more comfortable to work and play in. Endless configuration options can be created for free-standing structures, wall, partitions and enclosures. 4: Fixing all the sound leaks. Apr 19, 2022 · The easiest way to do this in a room is adding a second layer of drywall. Sealing gaps and cracks is a crucial step in soundproofing a room. 3: Fill the cracks with caulk or soundproofing sealant. You start by applying a primer. 5: Focus on the small areas of the wall. Among the various ways to soundproof a floor that actually work, installing resilient channels is an effective and reliable method. On the Feb 13, 2020 · that way, the wall will be more soundproof and it water-based, hence it is easy to clean. Install Resilient Channels. The Noise S. Tape or glue it to the wall – you may need industrial adhesive, as the blanket will be heavy. 2. Move the sections together so the edges of the plywood at each section meet. Steps. First, make the dado cuts. Number each stud and corresponding plate position (1,2,3, etc. Next, measure the height from floor to ceiling. To create a soundproof wall you'd need a solid structure that soundwaves can't pass through. Begin with one stud at the end. One of the best soundproof materials for insulating impact noise is a mass loaded vinyl mat. Measure Plywood: Measure your plywood according to the frame’s size and cut two pieces accordingly. Metal tracks are laid along the floor and ceiling Jan 3, 2024 · Place the cut pieces of insulation between the wall studs. Industrial temporary noise insulation. Feb 17, 2023 · Add Large Furniture. With a clean finish and sound dampening Thermax core these temporary walls provide a perfect barrier between patrons and projects. Jot down these measurements alongside the first. #6. On top of this layer, install the gypsum board. Install Another Layer of Drywall. Jan 3, 2024 · Step 2: Soundproof the Walls. Oct 19, 2012 · Stand a sheet of 1/2-inch interior-grade plywood in the grooves of the stands and center it each way. Purchase and apply mass-loaded vinyl to the walls and ceiling. Cut the Plates. Even minor openings can permit noise to infiltrate, reducing the efficacy of other soundproofing measures. Caulking gun: Use a caulking gun to apply sealant around windows and doors to prevent air and sound leaks. Hi @Sugar, Temporary and soundproof walls don't typically go hand-in-hand. Oct 19, 2020 · A temporary wall is exactly what it sounds like. Opt for a wall that faces the primary source of noise, such as a neighboring unit or a busy hallway. Our Udderly Quiet™ Acoustic Partition is low profile. As a general rule, thick wood works best as opposed to thin metal, such as steel or aluminum. SwiftWall Lite is our most cost-effective solution for walling off construction noise or quickly creating temporary spaces. 2 days ago · Sound Absorption = 55%. It is pretty hard to tell if the soundproofing option has been added as the materials used are inside the wall itself. Cut the plywood or drywall to fit the height and width of the wall and secure it to the studs using nails or screws. Step 3: Install the drywall in sections, adding Wall2Wall NY is a full service temporary wall company. Custom colors and finishes will be charged accordingly, or you can paint the walls yourself. Note: A wood transition strip covers the joint where two types of flooring meet and provides a ridge for the sweep to seal against. Rug pads also reduce sounds coming from downstairs neighbors. Around the inside, he nailed on a band of quarter-round moulding, creating a ledge for a panel of wallboard that he held in place with a second round of moulding. Rubber Door Sweep. Apr 19, 2024 · Step 2: Cut a section of MLV. It helps in holding the base coat and the paint in place. This comes in handy if there are a lot of bedrooms leading to the same hall. Various top and floor mounting options are available, as well as optional components like doors and windows. The grooves need to be just over 1” wide, because they’re holding foam that’s 1” thick. If the insulation is too loose, it won’t be as effective in blocking sound. Apr 3, 2024 · Cut the vertical studs with the electric miter saw. These slabs are attached exactly in the center of two existing drywalls. 00 per square foot for basic insulation of metal buildings. Apr 30, 2024 · Acoustic tiles. Jun 7, 2023 · MPW offers extra soundproofing options to make the temporary walls as noise-tampering as regular walls. May 22, 2022 · 3. Step 1: Measure the area where you want to install your flex wall. The universality of the EverBlock and EverPanel systems allows you to create all types of temporary walls, portable room dividers, and modular walls to re-shape spaces and change the look and feel of your room. Cut the insulation to fit snugly between the studs and secure it in place with staples or adhesive. The last thing a person should do is skimp on something like this. Use Soundproof paint. The slightly more expensive ways to soundproof a wall. Oct 19, 2020 · Seal the gap under a door with a door sweep and a wood transition strip. Finish the wall. While some walls, especially those in modern homes, may be constructed with soundproofing in mind, many require additional reinforcement. This noise barrier fence is designed to fit all types of temporary fencing. Create a temporary door with furniture. ayou or pay the insulation guy to make holes at the top of the wall between the studs. Jan 3, 2024 · To soundproof existing walls, start by exposing the wall studs by removing drywall or paneling. Tack it on with mounting putty – prepare to use a whole lot of it, though. O. You buy it by the roll, which you then cut and apply to the walls, ceiling, or floor. Add Density with Soundproofing Materials. 1. Feb 17, 2024 · Building a temporary wall might be the perfect solution for you! Whether you want to create a separate room, home office, or simply divide the space, a temporary wall allows you to be flexible and easily revert back to the original layout whenever you desire. May 22, 2022 · Step 2: Measure, mark and cut sheetrock to fit, remember to cut out outlets and openings. Choose the Right Location. Sound Absorption = 65%. You screw an additional piece of sheetrock on top of your existing wall. May 24, 2023 · 14. Our fiberglass temporary sound barriers are also a great option if it is only a short-term noise that needs to be quieted, or if you’re looking for a truly installation-free solution. With that in mind, here are a bunch of removable temporary soundproofing materials that you can use for a short-term fix. Turn off the electricity so there’s no current running to any switches or outlets on the wall. Cut the foam spacers that will serve as the interior insulation of the wall. Noise pollution not Jun 1, 2024 · 2. Convenient and light enough to move and store. MLV can also be used to make acoustic panels which then will be mounted on the wall to make it soundproof. Jun 9, 2024 · Add Acoustic foam panels. You can transform a room into smaller sections for any purpose. Use destructive interference. Install Mass Loaded Vinyl Mat. The temporary wall will need to be screwed to the floor and ceiling, per these instructions. Metal strips don’t work with sweeps because they aren’t thick enough. It’s best to buy at least 3 times more than you think you need because you’ll likely have some waste and mistakes along the way. Doors and windows are the worst areas for noise pollution escaping a building, but walls are also worth paying attention to. Acoustic caulk. In this blog, we'll guide you through the step-by-step process of how to build a temporary wall, providing you with the. Utility knife: A utility knife will come in handy for cutting insulation or mass-loaded vinyl to size. Step 10. A door sweep is another way to soundproof a door in an apartment because it is easy to install and they are relatively inexpensive. Family Handyman. These are a pretty common method used to stop the Jun 2, 2024 · For proper soundproofing of a door, read this article of mine. But unlike permanent solutions, temporary walls for apartments don’t require any nails or holes drilled into the floor or the ceiling. Mar 9, 2021 · For the most part, the ideas here do not require you to make any drastic changes to your walls, or something that is hard to reverse. Aug 19, 2022 · Most methods of decoupling walls require you to open up your existing walls, but building a separate, soundproof structure can deliver the same benefits without the demo work. Step 5: Insert the plug into the window. Then, remove the baseboards and drywall to access the wall’s interior. Features & Benefits. 50 – $3. There are 3 major tricks to soundproofing a room: mass, decoupling, and dampening. This sound barrier fence absorbs sound while remaining quick to install, light to carry, and tough to last. Next, install resilient channels horizontally across studs. Install Another Layer of Drywall With Green Glue. Our Quiet Barrier™ Acoustic Quilts are available in 2’ x 4’, 4’ x 4’ and 4’ x 8’ sizes. Attach Plywood to the Frame: Attach the plywood cutouts on both sides using drywall screws. It involves separating two sections of the wall in order to make it more difficult for sound to pass through. Once all the insulation is in place, you can proceed to the next step in your soundproofing project. The Echo Barrier can be used as a temporary sound barrier in place of your typical wooden Feb 20, 2024 · Measuring tape: Use a measuring tape to measure the dimensions of the areas you'll be soundproofing. Runners: Use carpet runners down hallways or to lead from one room to another. Sound-absorbing blankets. Most temporary walls are 5 inches thick and can support 20-30 Jun 28, 2023 · Install acoustic panels or foam on the ceiling to absorb sound reflections and reduce echo. Insulation is a 4th method, but it is far less effective. Fill the space with soundproofing material, use roofing nails to attach the soundproofing material to the studs. 10 Temporary Soundproof Wall Ideas For A Room How To Reduce Noise Through Walls. Call us now: 855-960-6020. This example makes 2 w… May 30, 2024 · There are seven steps or ways which I recommend: Install an Acoustic Barrier inside. Then fill the stud cavities with insulation and install resilient channels and multiple drywall layers as outlined above. They are also easy to remove if you decide to move out. If a person wants an extra layer of soundproofing so that everyone in the hallway does not hear what is going on, they can pull the curtains, and they work very well. Make sure there is a 1/4” gap between the ceiling, floor, and adjacent walls to help decouple the new layer and reduce flanking noise. You can align more dividers next to each other to create the appearance of a larger wall. Soundwaves, echoes, and vibrations can pass through the tiniest gaps in your home. com The cheap way to soundproof a wall. This method involves stuffing insulation batts into any gaps present in the construction of your wall, which can be vital in blocking unwanted noise. Check for insulation between studs and fill any empty cavities with sound-absorbing insulation like Roxul Safe’n’Sound. Identify a wall where you intend to place the bookcase. You can also purchase your acoustic quilt with an additional barrier layer for high-quality soundproofing as well as sound absorption. By putting up another layer of drywall, you’re making the wall thicker. Home Hacks & Answers. Screenflex tests include a chamber with concrete floors, walls, and ceilings. Because that height may vary, it’s wise to measure twice: once for the left edge Feb 19, 2024 · Install insulation between the studs. You can use sound blockers to prevent noise from traveling through the walls, ceiling, floors, doors, windows, and openings such as doorways, and also employ materials that absorb noise both inside and outside of the room. Nov 12, 2010 · Extreme How-To shows how to build a temporary brace wall. Hang acoustic curtains. Instead of using acoustic sealants, people can also consider using sound-absorbing slabs. Line the walls. Method 5: Flooring and Carpets. *. Best of all, they are usually easy to Jul 27, 2023 · Install the Frame: With the help of a level and stud finder, screw the frame in place and ensure it’s secure and even. Raise speakers off the floor. reduce echoes in a room. Acoustic partitions. Hanging ceiling sound baffles look like boards that hang from your ceiling. Soundproofing Barriers are perfect for: studios, home theaters, offices, restaurants, homes, automotive trunk liners, floorplans, marine cabin carpet Mar 9, 2023 · Soundproofing An Existing Wall - Best Techniques. Step 1 - Clear the area of all debris and obstructions. Continue for the remaining studs. Jan 11, 2021 · STEP 3: Cut two more 2x4s to be 3 inches shy of ceiling height. For maximum soundproofing results, follow these steps. I needed a creative background, so I made a double side movable wall. Oct 7, 2022 · 1. Sound tests will vary depending on the floors, walls, and ceiling type. Generally, temporary wall installation costs between $850 to over $3,700. Customize to size and shape needed. Apply acoustical sealant or silicone sealant around electrical boxes. Mass absorbs sound, and this thin sheet is made to absorb a lot of it. Mar 16, 2024 · Seal Gaps and Cracks. The temporary sound proof wall or temporary wall outdoor is easily and quickly installed close to a sound source, reducing noise by approximately 27 dB. Echo Barrier temporary fencing is a reusable, outdoor acoustic barrier. First, applying the paint is similar to using regular paint. Hang a full curtain with nice thick cloth on critical walls. It is a perfect sound-absorbing material that would prevent outside noise from entering your house. Step 3: Cut a piece of soundproofing mat to fit inside the frame, and attach it using adhesive. An example of adding mass is using thicker drywall, or 2 layers of it. 5. As you navigate this guide, we’ll reveal why temporary soundproofing is a viable option, how to choose the right components, and a step-by-step guide to building one. I have to warn you, though. our other products & services include: Temporary Walls, Flex Walls, Pressurized Walls; Bookcase Walls; Temporary Office Partitions; Custom Closets & Storage Systems; Soundproofing; Painting Feb 17, 2023 · How Much Does It Cost to Soundproof Metal Buildings. Standard thickness is one inch, but you can also order two or four-inch thick acoustic quilts. Your walls are like the canvas of your auditory environment. The easiest way to do this is to install a new layer of drywall but to leave a gap between it and the original. Just a little bit of a gap can let sound leak in and out of a closed-off area. The soundproof partitions consist of lightweight materials, making it convenient to pick them up and reposition them as needed. Repeat the previous step to attach stabilizers to a pair of stands and install sheets of plywood in the pairs of stands to make the sections of the temporary wall. sjv. Install a vinyl seal around the top and sides as well. The cost of additional products and choices to implement . Watch to learn how we build a solid temporary wall that won't leave a mark or damage Jan 4, 2023 · 14. This video does a great job explaining how to install Temporary Wall Panels: Construct temporary wall panels using soundproof materials like insulation board and seal the edges with acoustic caulk. Jun 3, 2024 · To soundproof a room effectively, you can use a combination of noise blocking and sound absorbing materials and techniques. Watch to learn how we build a solid temporary wall that won't leave a mark or damage the existing walls. These temporary walls are about 5 inches thick and can withstand 30 pounds of weight. To close these gaps, examine the room for visible cracks around windows, doors, baseboards, and electrical outlets. ™ Sound Fighter® Systems is an outdoor sound barrier wall system that is constructed from high-density polyethylene elements which stack and interlock to desired wall height. Seal seams with barrier tape. Step 2: Purchase enough drywall to cover the area. If your existing interior walls have cracks or holes, there is enough space for sound to pass through. This temporary wall supports the overhead structure when removing an existing load-bearing wall to 6: Hanging Baffling. SwiftWall Pro modular wall panel system consists of interlocking panels, channels and rails. Step 3: Apply to the back of the new layer of drywall to reduce vibration transfer. As a result, they typically work quite well at noise reduction and are a great option for soundproofing your space. Most people start with the walls. There isn’t a simple price tag on soundproofing your metal building—it depends on several factors beyond the building size. You can add many different features to your temporary walls but the most common options available are of door style with window. 2: Put strips on the doors. ). A ballpark range to start with is $1. Decoupling sounds like a complicated process, but it’s actually very simple. Jun 7, 2024 · I found a few solutions to block noise without a door: Build a door plug. Cut the top and bottom wall plates about ½ inch shorter than the room width so they don't bind when you put them in place. Just a simple upper railing with hooks and thick cloth to the ground will do fine. Although a non-conventional solution, using giant foam Lego building blocks is an effective way to soundproof a wall. High-quality materials will last for a long time if installed correctly. Step 3 - Starting at one corner, use your tape measure to mark off two straight lines that are 31 feet Jan 3, 2024 · For concrete or concrete block walls, attach new studs as described in Step 1. Use blankets. This soundproofing route would require the use of additional standard drywall, and spray foam or fiberglass insulation to create an interior wall that is effective at Jun 10, 2024 · 1. Filling all the gaps is extremely important when using anything for soundproofing methods. i am not sire of the size the persons that pumps in the insulating material would know exactly what size hole . Jun 2, 2023 · These include reducing dust and noise, preventing cold wind and water leakage, and serving as a barrier against outside intruders like insects. Industrial temporary soundproof walls help reduce health threats to employees who have long suffered from unwelcome noise pollution. The modules are locked in place at each end by vertical steel 4″ H beam columns. Earlier in this article, we discussed mass as one of the principles of soundproofing. Invest in a more permanent structure. it may be 6 inches. Remember that even the smallest gaps can compromise the effectiveness of the quiet box. Apr 3, 2021 · In this video I'll share the method I used to build temporary walls for our escape room, ripping 3/4" plywood into 3 1/2" studs, then skinning them with 1/8" May 3, 2024 · Nail the blanket flat against the center of the wall. Sep 18, 2023 · Soundproofing paint is one of the easiest methods for soundproofing existing walls. May 20, 2024 · Download Article. We specialize in innovative designs that are functional, safe and that leave no trace when removed. Adding Soundproof Insulation Slab. However, viny mats can also be used to reduce airborne noise as well. A party wall in a condo or duplex can be frustrating when your neighbors make too much noise. io/6R1ZrA if you go with the goodwill comforters, or pour the batting in, the poster meant that you locate the vertical studs in the wall. Apr 6, 2024 · 7. zc hl dg es sn bf vg qj mh pl