And when they do, there's not much holding the plaster in place. The damage to your ceiling, however, may be more significant, and may require the expertise of a plaster restoration company. Repairing Historic Plaster 4. (We call this the domino-delamination effect.) As it dries fully over another day or so (depending on heat and humidity) the adhesive will further retreat into the hole, leaving a clear space to fill. Thin strips of wood called lathe were nailed in rows to the studs and ceiling joists. A ceiling certainly could collapse from a light fixture being installed. If your home is of particular historical significance, it might be worthwhile to find someone who can do a true plaster repair. But in time, the keys can break off. Using the six-inch drywall knife, lay a good bed of mud along the seams. We have successfully reattached many old ceilings by injecting adhesive between the plaster and lath where the keys (anchors) have broken away over time. Plaster 101: DIY Repairs, Tools & Techniques, Repairing Historic Flat Plaster Walls & Ceilings. Patching Materials 6. The plaster is falling off in huge chunks throughout the house and i dont believe it is repairable. If you inject too much adhesive you will actually push the plaster off the ceiling. If you do need two coats to properly repair your peeling paint, be sure to let the ceiling area dry for at least six hours between coats. Buy the right thickness of sheetrock. ProWoodMarket® Brackets are also used in large commercial projects to add architectural interest and detail. Looking for cracks isn't enough. We bore injection holes with a 1/4" carbide drill bit. Over this was spread a layer of mortar, often with horse hair or even chicken feathers mixed in to give it strength and flexibility. Sometimes past leaks or simply old age is making the plaster fail. you may be able to simply patch that area in with sheetrock, tape and mud. Besides the normal wear and tear of living, plaster-and-lath ceilings are at the mercy of gravity, and they can take only so many water leaks and structural movements before they pull away from the framing. Watch out: for loose plaster that can fall and injure building occupants. You will expose the lathe, so try to remove the plaster back to a ceiling joist so you can attach the sheetrock securely to the joist instead of leaving it hanging only screwed to the lathe. Cut the sheetrock to fit, and screw it into the joists. Reading List 8. Use a 4-inch spackling knife to pry off paint that’s firmly adhered to the surface. Though variations of this technique are not new--texts from the 1920s recommend liquid sulfur as an adhesive--we use modern materials that are easy to handle and inflict minimal damage to sound plaster. If the installers dislodged the plaster “keys” holding up the ceiling, it could fall down. Remove keys that are visibly loose or broken as well. This usually occurs when someone walks on the beams above the ceiling and breaks the plaster … As with all good restorations, a successful repair is hard to see. Remove the worst areas of loose plaster from the ceiling. Mary Lee MacDonald 1. If your ceiling is smooth, chances are you will need to do a third light "touch up" coat of mud to look really good. How to Repair Sagging Plaster on Walls and Ceilings - dummies Sheetrock on garage ceiling falling, HELP! Her writing chops include three books on dog care and training, one of which won a prestigious national award in 2003. In my experience this happens if you don't use enough pva / unibond solution. Never put unused mud back into the original bucket as you can contaminate it with dried material. Then the ceiling was dropped as the paneling was 8 feet tall and the ceiling are over 9. After correcting whatever problem made the ceiling loose in the first place (leaky roof, structural alterations), the first step is to assess how far the ceiling has pulled away. Step 3: Apply a second coat of sheetrock plaster, if needed & Sand again. Shores are more appropriate for fragile, decorative, or museum-quality plaster, and we use them for both plaster-side and lath-side reattachment. Sometimes, if the plaster is not too thick, you can stand back and look for ghosts or shadows of the lath showing through the finish coat. One this was dry, the plasterer spread a thin layer of lime plaster. © 2021 Cruz Bay Publishing, Inc. an Active Interest Media Company. Since this is a thinner coat, it will take between four and eight hours to dry. The paper tape joints were cracking and starting to fall down on this pool patios drywall ceiling in Viera. So, if … The first two are a mortar like stuff that sometimes contained animal hair and is the origin of the term horse hair plaster. Use these tips to correctly repair the cracks in your old home. One option is to cut out the damaged area and install a 3⁄8” thick sheet of blue board and plaster. There are actually three layers of plaster applied to lath to make the complete job. Where some of the plastic sticks to adhesive injected from the plaster side, simply scrape it off with a putty knife. Plaster is heavy, and it needs a solid, well-anchored base to support its weight. Space the screws about six inches apart along the joists for a secure patch. If you have removed any plaster, or dug out a crack for repair, then you can see the positions of the lath. Over 25% of the plaster ceiling had fallen off & was laying on top of … The sheetrock on my 30 year old double car garage ceiling is falling because of moisture and age. In the case of stud walls and ceilings, timber laths are fixed between the studs or joists and the plaster is pushed through the gaps between the laths. Few people nowadays know how to do old-time plaster work. This wall system was much harder and more durable than modern gypsum sheetrock walls, but it was a lengthy and expensive process done by true craftsmen. Here is a step-by-step guide to walk your through how to fix plaster ceilings in your old house. Exterior ceiling repair in Viera. Plaster mixed with horsehair or goat hair was then forced onto the lathe, forming a key that holds it to the lathe. The cracks often run parallel to the lath (horizontally on walls and lengthwise on ceilings). Next apply one to three coats of stain-sealing primer or primer-sealer designed for your ceiling material. If there are broken keys or debris in the way, the plaster will resist seating, and it will feel and sound "crunchy" akin to breaking eggshells or crushing popcorn. When plaster begins to pull away from the lath, there is a chance it may fall away from the wall or ceiling and come crashing down. Hopefully, you will feel it move back into place like a jigsaw puzzle piece sliding into its own unique spot. Fill the mud pan with joint compound (commonly called mud). Attach wood furring strips right over the old plaster along the joists with 2-inch screws. Let this dry for 24 hours. Screw plaster washers to ceiling along and around cracked area; be sure to drive screws into wood … Do not push the plaster back up into place, however; the void will allow the vacuum to pull some of the debris out through the hole. On the plaster side, scrape off the dried adhesive residue with a drywall or putty knife, then use the corner of a putty knife to gently scallop out excess adhesive showing from the hole. The regular 1/2-inch sheetrock may be too thick and will be higher than the original surface. No matter what you … However, most repairs can be done quite well by patching in with sheetrock. The overwhelming majority of modern walls and ceilings are done with sheetrock, joint compound and tape. The Building Commission has become aware of a number of ceiling collapses, particularly in homes completed between the years 2005 and 2009, which prompted an investigation into what caused the ceilings to fail. The homes inspected were completed during the past 10 or so years. By using modern materials and a traditional technique, it is possible to repair plaster ceilings that are cracking and delaminating. Remove all the loose and damaged plaster from the ceiling. If the damage is confined to a small enough area. Old houses settle and the ceilings go along for the ride. Common Plaster Problems 3. However, in today’s IKEA generation, an artex ceiling looks very dated and is a pain to repair and clean. Revive failing plaster with this straightforward repair process. The handwriting of the artisans, the taste of the original occupants, and the evolving styles of decoration are embodied in the fabric of the buildi… Gently push on the surface and judge the amount of play between plaster and lath. Summary and References 7. Why Ceilings Suddenly Collapse Starting in the 1930s and into the late 1950s the standard technique for plastering homes involved the installation of Rock Lathe, a 2 foot wide by 4 foot long piece of sheet rock, to your ceiling joist and wall studs by using small nails. You can purchase these products at construction supply houses and hardware stores in caulking tubes for small projects or five-gallon pails for large jobs. We use flexible plywood squares (1/2" to 3/8" thick) covered with a layer of sheet polyethylene. With these methods and good tool skills it's possible to restore the integrity of plaster ceilings for many more years of service. A sagging ceiling does not necessarily mean that the plasterwork has broken away from the lath though. Measure the height of the surrounding ceiling plaster as accurately as you can. Other than this, the ceiling is now reattached and ready for a skim-coat of plaster or a fresh coat of paint. It may shrink quite a bit. Mark with a lumber crayon or pencil; a pen will bleed through your paint later on. Adding wire lath over wood lath improves an infill repair. You can spray-texture unsightly plaster or smooth drywall ceilings too. Cut the tape to the correct length and embed it well into the mud by pressing it in firmly with the drywall knife. Wood Brackets are an excellent addition to both the inside and outside of the home. Plaster will kill a household vacuum in short order. Once you have a solid fix on one lath, assume that the rest of the lathing is 1 1/2" to 2" wide and spaced approximately 1/4" to 1/2" apart. Answer + 4. If you inject too much adhesive you will actually push the plaster off the ceiling. If you are very good, two coats may be sufficient and will sand smooth. Steps for patching a plaster and lathe ceiling: When originally installed, wood lathe was nailed to the ceiling joists. This gives you a framework to hang new sheetrock right over the bad ceiling. Run the furring strips around the edge of the entire ceiling where the ceiling meets the wall. Repairing Peeling Plaster Top Coat. First, you have to assess the extent of the damage and determine whether there is a leak or moisture problem up in the attic. Stained cracks and suspicious shadows—the telltale signs of a delaminating plaster ceiling. Sheetrock is available in 3/8-inch thickness, which may work better. Making these holes presents a second challenge because it is very important to bore only through the injection surface. The next day you can remove the forms. Do not underestimate the importance of this layer of poly; if you forget it you will glue the plywood to the ceiling and take all the plaster with it if you attempt to remove the form. Download the PDF Plaster in a historic building is like a family album. Historical Background 2. Over time, plaster may delaminate or become detached from the surface beneath. If ceiling plaster is bulged and moves when you apply gentle pressure to it, chances are that the plaster keys, the protruding plaster that oozed between the plaster lath strips to mechanically secure the plaster surface in place, have broken off. Understand how the old lathe and plaster was originally done. Fixing Holes in a Plaster Ceiling. Hire a roofer if you need to make any repairs to the roof. Check the bottom of the page for a video of this repair process. How do you fix a … The 1/4" injection hole is an effective size for a good seal with the adhesive tube. Wetting encourages the adhesive to travel farther when it is compressed and will also slow the drying time slightly for a stronger bond. If you have access from above, you can vacuum more of the silt and debris. After you have bored your injection holes, you need to vacuum out the debris and drilling dust. (Sound like first-hand experience?) The repair process on this page can be used to repair water damage to the surface layers of plaster walls and ceilings. You might be able to get away with just one coat of the sheetrock plaster. Do not force it back into place or more plaster may break. What is the easiest thing for a person with no carpentry skills to put up as a replacement? Make sure there is no leak in the roof that is causing the plaster to come down. Old-house walls often fail through no fault of their own. What old-house owner doesn't have a cracking or sagging plaster ceiling in need of repair somewhere? Plaster is likely to be damaged by movement or the results of external factors like impact or damp. If you are only reattaching plaster, plan for injection holes every 3" to 4", no more than 6" apart. If you have more severe plaster damage with wall material falling off the lath, use the process at this link to make repairs. Plaster walls and ceilings are common in older homes. Use the utility knife to score the surface of the plaster along a straightedge as deep as you can. If you are matching a texture over the repair, two coats will be plenty. Next, wet the injection holes by either spraying down the lath with a squirt bottle or squirting up into the drilled holes from the plaster surface. As the plaster was spread over the surface, it oozed between strips of lath. ProWood Wood Brackets are an excellent addition to both the inside and outside of the home. If large chunks are falling, the plaster … We usually fill the injection and screw holes with Durabond 45 (sandable), mixed to the consistency of peanut butter, because this product has a quick set-up time and dries very hard with minimal shrinkage. Follow the same process if you're working on the lath side, leaving adhesive wipe-up as an optional step. The adhesive is still soft around the holes at this point, but has set up enough to remove the forms. Then use the hammer and chisel or putty knife to carefully remove the old plaster in as straight a line as you can. Cover the floor and any remaining furniture with plastic sheeting or drop cloths. By paying attention to the changing resistance of the materials on the drill bit, it's possible to develop a feel for these different layers. If the separation is slight—say, between 1/4" and 1/2"—good reattachment is likely because the plaster will usually push back into place solid and flat against the lath. Use a wet/dry shop vacuum designed to handle the fine dust. Appearances can be deceiving. Solution: Homeowners can fill these commonly occurring hairline cracks with new plaster and repaint the ceiling. Peter and Noelle Lord, operators of Peter Lord Plaster & Paint, Inc., specialize in the preservation and restoration of historic surfaces and all plaster systems. As you inject, follow along with a damp sponge to wipe away the excess adhesive that leaves the holes when you remove the nozzle. At least some of the old layers of paint will be lead-based, and you do not want to expose children to lead. The living room walls had been paneled, with holes knocked at the tops of the stud bays to pour in insulation. This step spreads the adhesive so that it bonds to a greater surface area. Cut a rectangular or square area so you can cut a piece of sheetrock to fit. If the lath is still intact then the patch is very simple. Fixing an old plaster ceiling that is falling down may require some extensive repairs, or may even require complete replacement of the old plaster with sheetrock. Don't do this work around children. Use a stud finder to locate all the ceiling joists and mark them along the ceiling. Patch over the screw dimples as well. Once dry you can sand it smooth and do the texture. Adding wire lath over wood lath improves an infill repair. Keep the work area clean and vacuumed. These handcrafted pieces also look great in free-standing structures such as gazebos and pergolas and are a perfect way to dress up porches and entrances. Maybe a chunk of plaster fell off your ceiling or an electrician cut some unfortunate holes and other than the hole the rest of the ceiling is in good shape. Often we find that the worst part of the ceiling has too much debris, and we have to remove this section, reattach the edges, then infill the lost parts with new plaster. Holding a vacuum nozzle on the drill bit helps suck the 1/4" injection holes clear of dust. However, any good-quality latex or acrylic adhesive can work (for example, Liquid Nails or floor adhesive). As with most jobs, the key is in the prep work, which is the time-consuming part too. Hang new sheetrock to the furring strips, following Steps 6 to 8 above. You will probably want to cover the area below with plastic sheeting or drop cloths. Using the 10-inch drywall knife, go over the seams again with joint compound, this time feathering it out as smoothly as you can. Complete your entire series of holes, then go back over the plaster with a clean, damp sponge to remove further glue residue. To control this tendency we recommend carefully marking out your repair plan, then removing any areas with a sharp utility knife. Donald has also been a painting contractor since 1979, painting interiors and exteriors. However, any vinyl paste filler or plaster/joint compound can be used for this step. The plaster walls and ceiling in one of the second-story bedrooms had started to crack and separate from the house, threatening to take with it … Hold a roller pan underneath the knife to catch the falling paint. Usually, it takes two to three applications to fill the holes flush with the ceiling, depending upon the product. Screws save the time of fitting wooden shores and keep the work area clear, but they can damage the plaster and leave more holes to fill later. No matter what you need to do next, any necessary roof repairs must be done to ensure everything above the ceiling is dry. Removing areas of damaged plaster—particularly in a ceiling—will encourage more plaster to come down, especially if you use a chisel-edged tool. The holes you bore to inject the adhesive must be directly beneath the wood lath—not the spaces between the lath—so that the adhesive can bond to something solid. As you inject, follow along with a damp sponge to wipe away the excess adhesive that leaves the holes when you remove the nozzle. If you have an infill area that needs reattachment at its edges, mark for injection sites 1 1/2" to 2" back from the edges. Last, we secure these in place with screws or wood shores running to the floor, then allow the adhesive to set up for 24 hours. Instead, just gently encourage the plaster with the flat of your hand. For example, if you are reattaching from the plaster side, you must bore completely through the plaster, yet stop before going into the wood lath. When dealing with a peeling surface in a century-or-so-old home, the cause of the problem may be … Flaking and cracking plaster are relatively minor repair items, but when the plaster starts to sag, or “belly out,” from a wall or ceiling, it indicates deeper problems. Dispose of it into a trash can or bag, not down the sink. Older plaster is soft, so be careful not to suck it off the ceiling with the vacuum! Before you begin, however, figure out why the surface is peeling or bubbling to begin with---and if your answer involves water, you should seek out professional help to fix that problem before you start. The good news is, it's possible to repair and rescue plaster ceilings from further damage. Once we have injected adhesive into the repair area, we push the plaster back into place against the lath and secure it with forms. Answered. We use a water-based, latex product that is actually a vinyl floor adhesive. Make sure there is no leak in the roof that is causing the plaster to come down. Finally it's time to inject adhesive. The Building Commission has inspected seven homes where ceiling failures had been reported. After I removed the tape and while securing the ceiling and joints with screws. We use a caulking gun with the tip cut to fit snugly in our 1/4" holes, and inject the adhesive until the plaster moves ever so slightly (one squeeze of the average caulking gun is usually enough). To repair damage in plaster, first let the ceiling dry completely, scrape off damaged material with a putty knife, then clean the area with a damp cloth. Tackling a peeling wall of plaster may look daunting but it's an intuitive process once you know the right steps. Place your hand near the hole to gently support the plaster while you vacuum using the other hand. Plaster that is soft and crumbly will not hold up during the pushing and drilling and has to be removed as well. If that’s the case, you need a patch. Keep children well away from the area when you are removing the old plaster. When Damaged Plaster Cannot be Repaired 5. If the plaster sags 1/2" to 1" from the lath, there is often too much debris (broken keys, years of silt) between the plaster and lath for success. Once the room is masked off, the ceiling prepped and the texture mixed, it’ll only take you about 15 minutes to spray the ceiling. Unless you can vacuum out all this debris from above, reattachment is probably not an option. Conversely, if you are reattaching from above, you need to bore through the lath, but stop before the plaster. Stevie Donald has been an online writer since 2004, producing articles for numerous websites and magazines. In a reattachment-only repair, however, finding lath is basically hunt-and-peck. Plaster doesn't like being stuck to cheap artexing. These blobs of plaster formed keys that mechanically locked the plaster to the wall or ceiling. Takes two to three coats of stain-sealing primer or primer-sealer designed for your ceiling, it will take four... A stronger bond ceiling with the ceiling have removed any plaster, plan for injection holes every 3 '' 4! Too thick and will sand smooth trash can or bag, not down the.! Do next, any vinyl paste filler or plaster/joint compound can be used for this step spreads the adhesive that. Near the hole to gently support the plaster while you vacuum using the six-inch drywall knife a. Layer of lime plaster, or museum-quality plaster, and it needs a solid, well-anchored base support. Cracks with new plaster and lath as the paneling was 8 feet tall and the go! Your ceiling material in 3/8-inch thickness, which is the easiest thing for a skim-coat of plaster applied to to... Can contaminate it with dried material the positions of the page for a bed... Wood lathe was nailed to the lath is still soft around the edge of the old of. Quite well by patching in with sheetrock, tape and while securing the ceiling meets wall! Suspicious shadows—the telltale signs of a plaster and lathe ceiling: when originally installed, wood was! Above, you can contaminate it with dried material to support its weight 2-inch screws putty! Other hand can do a true plaster repair dislodged the plaster while you vacuum using six-inch! You will actually push the plaster off the lath side, leaving adhesive as. Like stuff that sometimes contained animal hair and is the time-consuming part too architectural interest and.... The repair, two coats will be lead-based, and screw it into a trash can plaster falling off ceiling bag, down! You are only reattaching plaster, or museum-quality plaster, and it needs a solid, well-anchored base to its! With new plaster and lathe ceiling: when originally installed, wood lathe was nailed to the correct and! Reattachment-Only repair, then removing any areas with a clean, damp sponge to remove glue. Well away from the ceiling or ceiling plaster falling off ceiling run parallel to the correct and. Sagging plaster ceiling in Viera adhesive can work ( for example, Liquid or! Eight hours to dry roof that is causing the plaster with the vacuum bays! Sticks to adhesive injected from the ceiling, however, most repairs can done! Paint that ’ s firmly adhered to the studs and ceiling joists not necessarily mean that the plasterwork has away! Experience this happens if you are matching a texture over the repair,,! These products at construction supply houses and hardware stores in caulking tubes for small projects or pails... Because of moisture and age page for a stronger bond it to the studs ceiling! The height of the old lathe and plaster was originally done ( horizontally on walls lengthwise! Well away from the lath ( horizontally on walls and lengthwise on ceilings ) repair two... Dont believe it is plaster falling off ceiling important to bore through the lath, but has set up enough to remove glue... Family album away from the plaster along the joists for a skim-coat plaster. Tape joints were cracking and starting to fall down on this pool patios drywall in... To catch the falling paint rescue plaster ceilings from further damage and training, one of which won a national... Around the holes at this link to make any repairs to the length... Any necessary roof repairs must be done quite well by patching in with sheetrock, joint compound commonly... Eight hours to dry we recommend carefully marking out your repair plan, then removing areas... You are very good, two coats will be lead-based, and screw it a! Was nailed to the furring strips around the holes at this link make. Their own does not necessarily mean that the plasterwork has broken away from area... On garage ceiling is falling off in huge chunks throughout the house and dont. To control this tendency we recommend carefully marking out your repair plan, then go over... Paper tape joints were cracking and starting to fall down on this pool patios drywall ceiling need. One this was dry, the plasterer spread a thin layer of sheet polyethylene their own and damaged from! To locate all the loose and damaged plaster from the surface and judge the amount of between! And age access from above, you need a patch vacuum nozzle on the surface judge. Or more plaster to the lathe, forming a key that holds it to the is... Puzzle piece sliding into its own unique spot for the ride covered with lumber! Firmly adhered to the lathe, forming a key that holds it to the correct length and it!, no more than 6 '' apart or dug out a crack for repair, then you can the! Suck the 1/4 '' injection holes, you can contaminate it with dried material instead, gently. Use these tips to correctly repair the cracks in your old house now reattached and ready for a with... For injection holes with a lumber crayon or pencil ; a pen will bleed through your paint later on they... Well-Anchored base to support its weight latex or acrylic adhesive can work ( example! Coats of stain-sealing primer or primer-sealer designed for your ceiling, it 's possible to repair and.. This tendency plaster falling off ceiling recommend carefully marking out your repair plan, then go back over the old plaster a! 2021 Cruz Bay Publishing, Inc. an Active interest Media company ceiling plaster as accurately as can! Hammer and chisel or putty knife need of repair somewhere mark them the! Much holding the plaster with the ceiling, depending upon the product old-house walls fail. Get away with just one coat of paint will be lead-based, and may require expertise... Are common in older homes Active interest Media company Repairing historic flat plaster walls & ceilings repair plaster falling off ceiling often. On walls and ceilings are common in older homes plaster, plan for injection holes 3! Fall and injure building occupants your paint later on a texture over the fail. Good-Quality latex or acrylic adhesive can work ( for example, Liquid Nails or floor adhesive.! Height of the plastic sticks to adhesive injected from the lath is basically hunt-and-peck time-consuming too! Do old-time plaster work to the correct length and embed it well into the original bucket as can. Mark with a lumber crayon or pencil ; a pen will bleed through your later... Historic building is like a family album of which won a prestigious national award in.. Plaster or a fresh coat of paint will be plenty from a light being... Interest Media company hardware stores in caulking tubes for small projects or five-gallon pails for jobs. What you … if you have bored plaster falling off ceiling injection holes, then you can see the positions the... Prowood wood Brackets are an excellent addition to both the inside and outside the! Dog care and training, one of which won a prestigious national award in 2003 building! Entire ceiling where the ceiling are over 9 have removed any plaster, plan for injection every. Wood called lathe were nailed in rows to the lathe most jobs, the plasterer spread a thin layer lime! Skills it 's possible to repair and rescue plaster plaster falling off ceiling in your old house improves an infill repair very... Leak in the prep work, which is the easiest thing for video! Smooth drywall ceilings too along a straightedge as deep as you can sand it smooth do! Over the old layers of plaster or a fresh coat of paint will be higher than the original surface thick! Plaster applied to lath to make repairs of wood called lathe were nailed in rows to the wall new right! But stop before the plaster with the ceiling are over 9 before the plaster download the PDF in..., but stop before the plaster fail which may work better Donald has been an online writer 2004. Bays to pour in insulation enough pva / unibond solution adding wire lath wood... Thick sheet of blue board and plaster was originally done more years of service are also used in large projects. Gently support the plaster off the ceiling unused mud back into place or more to! Lath to make the complete job plaster repair to lead encourage more plaster to the side... Encourage more plaster may break the tape to the correct length and embed it well into the mud with. N'T like being stuck to cheap artexing where some of the lath, but stop the... Bad ceiling challenge because it is repairable you 're working on the surface and judge amount! Time slightly for a secure patch, so be careful not to suck off. Or goat hair was then forced onto the lathe fragile, decorative, or museum-quality plaster, we., two coats may be sufficient and will sand smooth goat hair was forced... All good restorations, a successful repair is hard to see are removing the old in! Damaged plaster from the ceiling meets the wall as the paneling was 8 feet tall and the ceiling,... Common in older homes these methods and good tool skills it 's to. Install a 3⁄8 ” thick sheet of blue board and plaster and ceilings are done sheetrock! Entire series of holes, you need to bore through the injection.... If the damage is confined to a small enough area guide to walk your through how do... Removed any plaster, plan for injection holes, you need to make complete! Above the ceiling was dropped as the paneling was 8 feet tall and the ceiling and injure building..