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Mary Farrah | Posted in General Questions on September 15, 2011 02:41am Hi, I just had the entire exterior back wall of my house parged. This is especially true with block foundations. The brick pier on the left of the right hand window is too narrow to resist the lateral load of the arch above, hence the vertical crack at its base through several courses. Only after you are sure the water / moisture problem is taken care of you can This method should help you achieve an even covering, even over a large area. Sounds like he is more aware and on your side. The other photo is of the bricks under the front porch, which are as close an approximation to the area by the walk out basement as I have. Similar to ours in some ways, blockwork wall below timber frame. This material is applied using a standard masonry trowel, and it is generally installed in very thin coats. Step 1 - Make Parging. It's pre-parging, but you'll see some minor repairs. Yes, the mason I used is actually my cousin's husband so I don't think he'd purposely do wrong by me. If the weather is warm; usually one day of curing of the mortar will be sufficient to proceed to the next phase. Jul 14, 2013 - If you're looking to add definition and texture to a plain wall, consider adding a splash of stone without the cost of hiring a mason. Still you need to get a better understanding of where the moisture is coming from that is causing the spalling. In any event I applaud your mason's choice of type N as opposed to type S which is what most would have used. The photo of the upper wall indicates you have a significant structural problem as well as the spalling of the arch brickwork. However, if you're covering a large wall, it may be too hard to apply the mortar evenly, even with a trowel. If you don't feel you have the knowledge to assess the existing water-management details and insulation details, you may have to hire a consultant. Hold the grinder at a 45-degree angle and run the... 2. Initially I was going to have them pointed/repaired, but the mason advised me the bricks were too soft at this point to do that. Can also be used for scratch, brown and finish of walls. Mary, Removal of the parging is the best course of action in cases like these. Most parging mixtures are made from a blend of lime, Portland cement, water, and masonry cement. There have obviously been some attempts made at fixing this problem including some haphazard replacement of the brick and repointing of the cracks but unless these have included some provision for tying the top and bottom of the pier through to the solid wall beyond it's only a matter of time before the cracks re-open, readmitting moisture to the interior of the wall. If there's no room to do that a coat of traditional stucco, not parging, over properly secured metal mesh would at least keep the water out and stabilize the corner. For a quality parging mix its best to use a mix of about about 3 parts sand to at least 1 part portland cement. Parging also requires some prep work to make sure the walls are ready and the mortar mix will stay put to make the results last. Parging is often described as being just decorative but it also helps to seal any cracks above grade in your home and helps to keep heat in. Secondly, if poor drainage causes water to consistently spill from the roof down over surfaces it will erode the wall, chimney or other brick surfaces over time. There are two types of parge … One may also ask, how thick can you apply Parging? What a great resource this site is!!! Type S Mortar Mix is a pre-blended mixture of sand and masonry cement or sand, lime and portland cement. Scrub down the wall to remove additional loose bits and debris from the foundation with a stiff … Parging (or sometimes 'pargeting') is commonly used as a method for improving the thermal and acoustic performance of walls before before finishing them with a final surface such as drylining. The bricks were so old and damaged that they were literally crumbling and turning to sand at the touch. Parging is essentially covering a bricked area with one thin coating of mortar at a time. This parged wall is less than 20 years old yet it shows serious signs of deterioration. Types of parging. I checked and it still has cement in it. To apply the mortar to the brick, you simply use a flat tool to put even coats of mortar on the brick wall, then wait for it to dry so that it will adhere properly. Please advise. Masons use a parge coat to cover walls made of concrete, brick or block. Hunker may earn compensation through affiliate links in this story. Cassandra Cochrun lives in Springfield, Mo., and has been a freelance writer since 2008, specializing in articles about pets, the arts and home and garden topics for eHow. There are inexpensive options for covering the wall that are relatively easy to remove at a later date, along with more-expensive choices for a permanent covering. 3. For laying brick, block and stone in load bearing walls and below grade applications. While covering brick isn't always desirable, the advantages of parging a brick wall may far outweigh the disadvantage of covering brick up. Parging is the application of mortar to the surface of a masonry wall. On today's homes, parging is used as a decorative covering for the exposed brick, block or poured concrete of the foundation wall. The most common reasons are poor water management (insufficient overhangs, insufficient drip-edges, flashing problems, broken conductor pipes, bad details) and a bad insulation job (choosing an insulation method that makes the bricks vulnerable to freeze/thaw damage). Here is how to apply parging to a wall. You can add 1/4 to 1/2 part lime powder to make it a little easier to spread or apply. Remove tar, paint, glue or other blemishes with a hand grinder. Watch this step by step instructional video on parging. Using a plaster stone stencil, some hand tools and joint compound (also known as drywall mud), you can create a faux brick or rough stone wall all by yourself. The ancient technique of pargeting or parging involves protecting or decorating a wood or masonry surface with a stucco-like material. Cover the windows and doors in the exterior brick wall with plastic sheeting, using masking tape to … Then, apply the mortar as evenly as possible, and before you apply the last coat of mortar, apply a "scratch coat" of strong cement and smooth with a sponge until it's even. I've just dressed the airtight membrane down from the frame onto the blockwork and will seal to the block with something like Gorband Fortax 6400 which is a mastic type product. Thanks for that. Sealing meeting point of brick wall and asphalt driveway, Insulating a crawlspace with brick foundation walls. How to Parge a Block Wall 1. If customers ask for different colour parging we will add the colour of black, brown, brick colour (red). The result is a form of stucco, or cement-based plaster. Very relieved that type N is okay. Parging also requires some prep work to make sure the walls are ready and the mortar mix will stay put to make the results last. A parge coat is a method of sealing a masonry background prior to drylining with a system such as DriLyner BASIC. This was after two weeks of periphery rain from hurricanes. You have several options for getting the old brick look. Cawley masonry is the king of restoration and we love basements. To make a long story short, I did research, found this site, and read articles for hours and hours. There aren't very many different ways to parge a brick wall, and the best way is the most direct way. I checked with the mason to see what he used, and he used N type mortar with a psi of 750 that’s better for soft bricks like mine. Remove any nails or screws in the concrete walls. Can you post some images from before the parging was done? PARGING. Haroutunian Masonry states that parging will also help you to avoid replacing your damaged brick in the future because the brick will be completely covered and protected. It sounds simple, but it takes some practice to apply the mortar in an attractive way. It sounds simple, but it takes some practice to apply the mortar in an attractive way. Hi, I just had the entire exterior back wall of my house parged. Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more. Your problem probably can't be answered without a site visit. To parge the existing walls as seen in the photo Any parge mortar use will only be as good as the paint / existing white coating that is now on the brick. After all of this happened, I noticed a different kind of brick used on the front of my house was taking in water and damaging the plaster interior walls. Whether you're choosing to parge an indoor or outdoor wall, for aesthetic or practical reasons, you should be able to achieve the results that you are looking for relatively quickly and easily. Put three shovel fulls of masonry sand into the wheelbarrow. It may help to determine if the water is wicking up from the ground or being absorbed from wind-blown rain or coming in through bad flashings and roof detailing. According to This Old House's website, if your indoor brick wall is collecting dust or giving off masonry particles, the smooth surface created by parging can stop that from happening. Parging Brick Basement Walls On June 17, 2020 By Amik Holmlund masonry restorations parging basement walls durham parging toronto foundation repair how to stucco basement walls diy holmlund masonry restorations A tool that is designed to spread mortar, like a trowel, is a good choice because it will hold up to the material and help you to make sure that your coats are as even as possible. How To Hard Plaster A Brick Wall - DIY At Bunnings - YouTube Parging gives your concrete walls a fresh look with just a coat of mortar. If your brick is deteriorating and has holes in it, parging can fill those holes and protect your building or structure from the elements. Different pigments do exist to alter the colour. Parge coating being applied on a stone foundation wall with a rough trowel pattern. Thirdly, water may be absorbed through consistently wet soil (rising damp), which may also … Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The bricks were so old and damaged that they were literally crumbling and turning to sand at the touch. Leave a three … A: Parging is a thin, plaster-like coating of cement-based mortar that’s often applied to exterior blocks and other foundation walls to make them look better and, supposedly, last longer. Parging a spalling brick wall. There are many possible reasons for brick deterioration. When the parging falls off due to moisture entering the masonry wall, the parging needs to be removed and replaced. Now I understand that there are different kinds of mortar and brick, and my bricks are the old sort (circa 1915) that require lime based mortar. Clear out the area around the wall. I think I'll then use mesh over the join before plastering to prevent cracking. Mortar will not adhere well to a painted surface & will fail over time. Hi Michael, This won't delete the articles you've saved, just the list. Mary Am I worse off for having this on my old, spalling bricks? How to Parge a Chimney. Piping and tooling new brick mortar into the affected joints, and allowing for curing of any masonry repairs, is key to a proper and lasting job. Parging is the coating applied to the visible (above-grade) portion of your home’s foundation walls. Updating your home doesn't always mean making it look more modern. The first question is, what is causing the spalling of the bricks? There are several ways to hide an exterior brick wall that's become unsightly because of damage, stains or discoloration, or if you simply desire a change. You must be a magazine subscriber to access this feature. © 2021 The Taunton Press, Inc. All rights reserved. Add one shovel full of … When it comes to brick, aging or distressing can change the look or help newer brick fit in with the older style of your home or camouflage replacement bricks in an older structure with a decorative technique over the whole thing. In my area of Pennsylvania there are a lot of old retaining walls that were built in the WPA (depression era). You can apply a parge coat to improve the appearance of an ugly concrete or block wall. The term ‘parge coat’ refers to the application of a thin coat of a cementitious or polymeric mortar to concrete or masonry walls. I suspect the water damage could be all of the above. To apply the mortar to the brick, you simply use a flat tool to put even coats of mortar on the brick wall, then wait for it to dry so that it will adhere properly. Step 2 - Clean the Wall. Oct 26, 2019 - Parging gives your concrete walls a fresh look with just a coat of mortar. FAQ: Why Do Some Builders Avoid Foam Insulation. This is a great method to use when your replastering old basement walls made of stone. In this case, Haroutunian Masonry advises that you may need to nail a sheet of galvanized mesh to the wall, which will help hold the mortar in place. The areas closest to the ground were in extremely bad condition (worse than the photos I've attached), but I didn't have any photos of that area. The 5' parapet on the roof is in terrible condition and leaks. By creating an account you agree to the Hunker. She works at a design firm as a copywriter. Step 3 - Apply a Thin Layer. A thin parge coat will do nothing to prevent this. There aren't very many different ways to parge a brick wall, and the best way is the most direct way. Cochrun holds a Bachelor of Arts in writing and graphic design from Drury University. At British Gypsum we manufacture Gyproc Soundcoat Plus which is gypsum-based and designed to improve acoustic performance and reduce air leakage by sealing air paths. In order to make the parging, you will need to mix Portland cement, sand, and water to a consistency you find easy to apply. Cut 1/16-inch-deep vertical cracks on the wall every foot or so with the cutting edge of the disk grinder. Dampen the wall surface with water. The walls should be wet first, which helps the mixture adhere to the masonry. Add two shovel fulls of Portland cement. For example, if you don't like the look of your brick, you may choose to parge because parging hides the look of the brick completely. The exact shade of grey usually changes depending on the wall, the cement, and the drying time. This feature has been temporarily disabled during the beta site preview. There appears to be no room for insulation on the interior of the wall beside the window - if there's room at the side where the wall abuts the left hand window (can't quite see from the angle of your photograph), covering the exterior of the brick with insulation and siding would be your best bet to both insulate and weatherproof. There was also damage by the roof and around windows in the back (see photo).