Xactimate drywall plasterinsulation flashcards by mark. Work in large sweeping strokes as you cover the defect and surrounding area. As you know, blue board is used under veneer for adhesion reasons. Thats why this old house general contractor tom silva usually reattaches lath. If you have plaster walls and are able to either strip all paint andor wallpaper exposing the bare plaster, absolutely and 100%, only use hydraulic lime based plaster. Many older homes may still have some walls and ceilings made of plaster and lath instead of the now standard drywall or wallboard. The difference is in the blue paper covering on blueboard. Why choose our drywall contractors attention to detail, great quality of work, and competitive pricing. Take a litre of emulsion once youve abraded to a equal and paintable surface and mix your emulsion with 2 litres of water,paint or roll it on thr surface area when dry you can then paint your decoration paint on at least 2 coats to get an even finish. Blueboard drywall, gypsum plaster base toughrock veneer. Patching plaster how to repair your walls property.
Blue board is for walls that will be finished with veneer plaster. This paper is specially treated to bond with a specially formulated plaster. Attaching shelves to blueboardplaster totally out of my element here. This tends to work the patching plaster into the crack better than strokes in.
My husband and i are trying to restore our apartment in an old prewar building. Blueboard has a thicker, more absorbent paper layer on the outside of the gypsum core that is meant to absorb the increased moisture levels that are present in plaster compounds than those in traditional drywall mud. Ive done some plastering but limited to partial walls and patches. Applying a veneer coat of plaster over blueboard youtube. A full skim coat, patching, or covering lead paint. Joints between the 4foot wide sheets are taped with fiberglass mesh, which is bedded in the veneer plaster. Repairing historic flat plaster walls and ceilings old. The appearance of the finished blueboard is far superior to that of drywall. Dunlop 4l premix render joint and patch bunnings warehouse. A better choice is to fix the blemish so that it blends with wall texture. Get fair costs for your specific project requirements. Or guess if you dont mind patching and painting over your mistakes. Mudding over plaster walls with premixed joint compound. The key to any fix is to reunite the plaster with the strips of wood lath underneath.
To patch repair plasterwork, slightly treat the exposed edges of the existing plaster with water or diluted pva one part to 10 of water to control suction and prevent cracking. Plaster itself is a durable material that is fantastic for areas that experience a large amount of traffic. The answer really depends on what you are trying to do. They also have a veneer plaster tape but ive never tried it. The face of the blue board needs to be completely plastered in order to provide a suitable surface for painting. I like to use at least a 2 12 paint scraper and gouge out a nice channel about a 14 deep into the scratch coat. The basics of blue board typically, blue board will be treated to ensure that plaster sets and dries in a uniform manner. These plasters form a surface that is much harder than typical gypsum wall board, making it less prone to dents and scratches. Drywall repair allen, drywall contractors allen, drywall. In making this type of repair, the plasterer paints a liquid plasterbonding agent onto the areas of basecoat plaster that will be replastered with a new lime finish coat. Work quickly, as some joint compound formulas dry very quickly. Diy how to paint like a pro series a to z duration. Painting blue board over traditional drywall kt blue. Plastering over blue board drywall specifically for white coat of plaster is done all the time.
We guarantee you will be satisfied by the time we leave the job site. To repair plaster, a building owner must often enlist the help of a plasterer. Cost to repair plaster estimates and prices at fixr. A skim coat of plaster can be applied to regular drywall or an existing traditional plaster surface, but first the wall must be painted with a specially formulated.
Fill the holes and large cracks in the plaster with plaster patching compound, using a putty knife. Use as a patching mortar for repairing cracks and holes in existing. It can be difficult to fit a new painting project into your daily routine. Apply the patching plaster with a wide and flexible putty knife. Blueboard is a type of drywall, named blueboard for the different, distinguishable blue paper that covers the core, that is ultimately designed to be used as preparation for a plaster finish as opposed to a drywall tape and mud finish.
I then use 4 wide fiberglass tape like fibatape alkaliresistant. The key to a successful paint job is proper drying of the plaster. This will not only save you time and money, but it will put valuable time back into your hands. I dont want the shade to be different between the board and the joints, so i thought that sealing was important.
I just read a blog stating that premixed joint compound should not be put over preexisting plaster walls. Whether youre looking for residential or commercial painters in moncton, dans painting is available 7 days a week to get your home or business looking exactly the way you dreamed. Furthermore, as a substance, it is effective at eliminating irregularities in the surface of a wall, such as nail dimples, and board seams. Use for jointing fibrecement sheet or blueboard prior to rendering. Gold bond unikal 50lb bag plaster of paris plaster. How to plaster blue board this old house this old house. If the plaster that is on now seems ok except for the finish, you should be fine. Old plaster walls, like this one painted a faded red in a greek revival. Restoring original plaster how to repair lath and broken plaster duration. The original plaster had been painted with a coldwater or distemper paint in an intense deep blue. Painting direct onto plasterboard screwfix community forum. Expert residential carpenter serving medfield and surrounding communities. Does anyone know if you have to use a special primer over new construction thin coat plaster.
Attaching shelves to blueboardplaster totally out of my. Ill have to paint the whole ceiling and the wall next to it so it matches. How to fix drywall patch marks showing through paint. It can, however, require a bit more extra time and skill than patching a hole in drywall.
Blue board and plastering vs sheetrock and joint compound. If you have holes or cracks in your plaster walls or ceilings, repairing them isnt difficult. Hi friends were painting over cured veneer plaster and have been getting a lot of conflicting advice. How to paint old plaster walls home guides sf gate. But for us, our plaster is a mishmash of layer after layer of paint, patched drywall areas, and who knows what else. We also install highquality blue board with convenient plastering at an exceptional value.
But some builders, tom silva included, still like plaster. Blue board and green board are both designed for use in applications where regular drywall wouldnt be sufficient. Are you doing a skim coat, or patching holescracks. Other common colors of the time included deep red and deep green. The overall wall is smoother, the finish is more evenly toned, and the joints are less noticeable. Shop plaster and a variety of building supplies products online at. Known most commonly as blue board, the panels are covered with a special paper compatible with veneer plaster. Your actual price will depend on job size, conditions, finish options you choose. Blueboard and plaster blueboard is covered in a paper that is feltier or more fibrous.
If the plaster veneer is applied to the blueboard to ensure additional polish to the board, special taints and paints can be mixed directly in to the. Repairing historic flat plaster walls and ceilings old house journal. We noticed the paint peeling in one section of the wall where it looks like some repairs had been done and the section had been replastered. The advantages and disadvantages of painting blueboard. We have just moved into a new flat and wanted to paint the bedroom. Apply joint compound onto the mesh panel tape covering the defect using a large putty knife. When plaster is applied these microfibers become imbedded in the plaster for greater adhesion.
Roll or brush 2 coats of color and sheen matched paint, blending outward perimeter of patch. Icesailor, if the original blueboard is 12 and you have a veneer finish. For quick and cheap wall surfaces, drywall is often the solution. It used to be the blue board or kal board was not tapered, but the last times we have used it, it was tapered, so we pre filled with base coat before skimming the whole wall with base coat, then finish. Find here detailed information about plaster repair costs. A homeowner wishing to repair small areas of delaminated finish coat can use the methods described in patching materials. Unlike traditional drywall, you can paint directly over blue board. After stripping two layers of existing wallpaper and an original liner paper from the walls, wallpaper pro shannon russell made an interesting discovery.
The paper has also been treated with bonding agent, again to improve plaster bonding to the paper. Cut a piece of mesh tape the appropriate size to fit and place it over the patched. Blue board is designed to absorb any additional moisture from utilized materials quickly. Otherwise the cracks come back, no matter how many times you patch over them. I want to paint the walls after priming and wasnt sure if i had to get something special for plaster. They can be installed over furring channels to masonry walls or over old wood lath walls and ceilings. This mix will help the new plaster adhere to the damaged area. When finishing blue board drywall, instead of applying several coats of joint compound to the seams between boards, a quick tapeandplaster treatment to the joints is applied, and then the entire. Historically, lime plasters were allowed to cure for at least a year before the walls were painted or papered.
It is essentially the same as drywall in the interior composition of gypsum. Blueboard is a good answer to all the problems that are caused by regular drywall. Alternatively, gypsum may sometimes be added to a lime plaster mix for the same purpose. Tommy explains the difference between drywall installation and plastering blue board. Saintgobain adfors drywall repair patch 8in x 8in drywall repair patch. When finishing blue board drywall, instead of applying several coats of joint compound to the seams between boards, a quick tapeandplaster treatment to the joints is applied, and then the entire wall surface is covered with one or two thin 18 inch thick coats of plaster. Removal and restoration of damaged walls, ceilings and insulation. The paper is definitely fuzzier so you might have to sand the primer after it is dry, then paint. Before the pros paint walls, they fill holes and patch cracks with joint compound. Some manufacturers use a special blue paper on this gypsum panel. Apply a plaster sealant or bond with a small brush over the area you are going to repair. Bob interviews carlos londono, a plastering contractor, who demonstrates how to apply a veneer coat of plaster over blue board. If the drywall is regular drywall, i would contact gypsum board manufacturers,ask them.
How to patch a plaster and lath ceiling ask this old house duration. Just painting over an improperlypatched blemish does not cover the problem, as the patch is often still fairly obvious. See typical tasks and time to apply thin coat veneer plaster, along with. The plaster thickness usually ranges between 116th to 332nd of an inch. The smooth, even texture of the plaster veneer is much more friendly to the application paint than the drywall mud. My landlord told me that the walls i want to work on are made of blue board with plaster and wood studs behind. The other specialized wallboard product green board is intended for use in. To repair walls damaged by water rising damp is an extensive process and requires the services of an experienced plasterer with expertise in this area. Cost to install thin coat plaster backing blueboard. The walls have small to mediumsized areas where some of the plaster is missing and there are numerous jagged cracks in the walls. Im painting a room that is bare plasterboard, that has the joints filled with jointing compound. Weve had new blueboard and skimcoast plaster not sheetrock put up in a room walls and ceiling. General contractor tom silva shows host kevin oconnor the differences between drywall installation and plastering over blue board. Bob joins plastering contractor bob fragakis, who will install blueboard, then apply a skim coat of plaster over it.
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