Indy Total Construction

Finishing an Imperial ceiling with a coat of plaster is carried out in a similar manner to finishing off a drywall partition. However, when working above your head (which often presents difficulties of its own) it is best to apply small amounts of plaster at a time to avoid tiring your arms.

Deal with the joints first, spreading a thin layer of plaster down the center of each one and pressing lengths of 2in wide nylon mesh or paper tape into the wet plaster with your trowel. Lightly trowel over the tape then apply another thin layer of plaster on top.

Divide into handy bays; fill in each bay with a thin layer of plaster, but not over the joints. Hold the trowel blade at 30° to the surface of the ceiling; the back edge about 1/Gin clear of the board to provide an even layer. Reduce the blade angle as the plaster spreads and pinch the back edge in as you complete the stroke to stop the plaster falling off. Work away from you to avoid flicking plaster into your face.

When you have filled in all the bays, go over the entire ceiling with another thin layer of plaster. Rule it off with a long metal straightedge to remove the high patches and show up the low spots, which should be filled with a thin coat of plaster.

How you treat the angle between the ceiling and walls depends on whether you are replastering the walls at the same time or not. If not, simply run the corner of the trowel blade along the angle from the ceiling and wall sides to cut out the angle neatly. If you are replastering the wall as well, lay on the floating coat then tape the joint between the wall and ceiling before applying the finish coats. Finish the corner as normal.

Finally, polish the hardened plaster with a clean, wetted trowel blade.

If you intend papering or painting directly over the drywall, the joints must first be made to “disappear”. For this you will need drywall joint compound, paper jointing tape and joint finish (see below).

First spread a layer of compound down the seam and, with a taping knife, press the tape into it. Apply another layer of compound over the top, feathering the edges by going over them with a damp sponge.

When the compound has dried, apply a finishing layer, feathering its edges in the same way. Treat the nail head depressions with compound and finish in the same manner.

At the angles between wall and ceiling, fill large gaps with compound; then apply compound to both wall and ceiling and press a creased length of tape into it. Apply two more layers of compound to wall and ceiling, feathering the edges of each one.

There are two types of ceiling construction, depending on their age. Early ceilings were made by nailing thin strips of wood (laths) to the joists so that there were narrow gaps between them. Plaster, often reinforced with animal hair, was then spread over the laths and forced through the gaps in between. The ridges so formed are called “nibs” and these hold the ceiling together.

The more modern method of constructing a ceiling is to nail sheets of gypsum board to the joists and cover them with a thin skim coat of plaster.

Cracks are the most common form of damage found in a ceiling and if they are only fine they can be filled with a filler compound. However, if they are wide and cover a large area of the ceiling the structure will be dangerously weak and should be replaced.

If a plasterboard ceiling sags it is probably because the fixing nails have loosened. Refix the affected area by renailing with 2in drywall nails spaced 6in apart.

If plaster has fallen away from the laths but they appear to be in good condition, replaster them after cutting back the original plaster to make a regular shape and reach sound plaster. Undercut the edges of the plaster and make sure there is no old plaster left between the laths. Then treat the area with an adhesive.

When plastering always work across the laths, spreading on a thin coat of bonding plaster first and keying it with a scratch comb made by knocking a row of nails into the edge of a short batten. Apply another coat of bonding plaster and key this with a devilling float, pressing it down to allow for two thin finishing coats. Polish these when hard with a wetted steel trowel.

Many window frames are made of wood. The most common problem with window frames is sticking caused by:

• Paint

• Swelling

• Warping

• Broken sash cords

New paint is a major cause of windows sticking. Sticking of freshly painted windows can be prevented by leaving the window slightly open while painting. As soon as the paint dries, slide the window up and down. Do not wait too long because paint hardens as it ages.

If the window has been painted shut for a while, it will be difficult to open. Use a putty knife to cut through the paint seal. Never pry the window open with a chisel or pry bar.

Even if you use a piece of wood to protect the sill, the window sash will be dented.

Windows that are badly stuck may have to be removed from the frame. The sliding part of the window (sash) is held in place by two strips of wood called stops. Carefully pry up the stops. Remember, you want to use these stops again. A little patience saves buying, cutting, fitting, and painting a new piece of wood. Don’t drive the nails back out through the stop after the stop is off. Use pliers and pull the nails out through the back side of the stop. This will leave a neat little hole.

With the sash out, you may sand or scrape off the excess paint. When the weather is dry, cover any bare wood with a thin coat of paint or fast-drying sealer.

Paint protects wood frames. If moisture soaks the frame, the wood will swell. Never plane a frame that is swollen. Otherwise, when the wood dries, it will be too loose and will rattle in the wind. Instead, rub paraffin, soap, or a stick lubricant on the frame. Warped frames should be planed or sanded. If the wood is warped too much, it must be replaced.

If a sash cord breaks or the weight comes loose, the window will hang crooked, and the window won’t stay up. To fix the cord, pry off the stops. Find the sash weight door and

Usually it is held in place by one or two screws. Reach inside and take out the weight. If the sash cord is still good, the weight probably came untied. Retie it and put everything back together.

If you need a new sash cord, make sure it’s the same thickness as the old one or it won’t run through the pulley. Feed the new cord through and tie one end to the sash and the other end to the weight. The sash cord will stretch, so leave some room under the weight so it won’t hit bottom later and keep the window from opening all the way. Move the window up and down to see if you’ve tied the weight too high or too low. When you’re sure everything works, put it back together again.

When you put the stops back, ignore the old nail holes. Tap the nails in a new place, but, to avoid hammer dents, stop before you hit the frame. Finish driving the nails with a nail set. Cover the nail heads and fill in the old holes with wood putty: After several days, when the putty is dry, touch up with paint.

As a building ages, it settles..Structural settling is another cause for windows jamming. If the windows are being twisted out of line, the entire frame must be removed and reset in the wall.

Wood frame windows are often replaced by aluminum ones. Other new frames are vinyl (plastic) over a wood core.

Casement windows open with a crank that needs a yearly greasing. Because these cranks rust, you will have to keep them clean and painted. Casement windows are usually easier to care for.than wooden frame windows.

Most older houses have wooden window frames. However, most new homes have plastic or aluminum frames.

Remove the window only as a last resort. Carefully remove the stops, then pull the nails out through the back of the stop with pliers.

Painting across the moving parts of a window is a major cause of sticking. Running a putty knife between the stop and the sash will help free the window.

Lubricate all moving surfaces on the window and frame with a hard piece of soap or paraffin to help them slide better.

To repair a sash cord, remove the door in the window frame, reach in, and take out the sash weight.

Tie a knot in one end of the sash cord and fit it into the sash groove. Tie a nail to the other end for weight and feed the cord over the pulley. Raise the window and reach into the opening. Pull out the new cord. Tie it to the sash weight.

Clean casement window cranks at least once a year. Grease the track and oil the crank handle and window hinges.

Older walls and sometimes even new ones will need some repair before finishing. The most common wall repairs include:

• Dents

• Small holes

• Large holes

• Nail pops

• Split tape

You can repair dents by sanding around them, trowling joint compound (spackle) into the dent, and finally smoothing out the area. This is essentially plastering. Once it is dry, you can sand, seal, paint, or wallpaper the patch to match the rest of the wall.

Small holes are repaired like dents. A wad of newspaper behind the hole will prevent the joint compound from falling between the walls.

For large holes, you will have to patch a piece of drywall into place. Remove all loose material from around the hole with a utility knife. Then cut a piece of drywall to fill the hole. If the patch doesn’t rest on solid wood, set a screw in the patch to use as a handle. After the joint compound hardens, remove the screw and plaster the whole patch with joint cement. Then sand the patch to match the rest of the wall.

When the house framing expands or shrinks, nails pop and become visible under the paint or wallpaper. If the nails are tight, just drive them back below the surface with a claw hammer. Plaster the dent with joint compound. If the nails are loose, pull them if it won’t damage the wall, or drive them so deep they won’t come out again. Then drive new nails nearby. Cover the nails with joint cement. Use only drywall nails. Regular nails will rust when covered with joint cement.

Split tape is caused by the house settling. The tape will bulge like a bubble or blister or actually crack. Cut and pull off the loose tape. Remove all the loose tape or it will split again. Then sand the area and spread a thin coat of joint compound over it. With a wide putty knife work the tape into this compound. Plaster over the tape with compound. When it is dry, sand it.

Bathroom and kitchen walls are sometimes covered with ceramic tile. When a tile is cracked, it should be replaced. Start by removing the tile and old grout. You may have to break the tile with a hammer and chisel.

Repair large holes by cutting a piece of drywall to fit the hole. Cement the patch and hold it in place with a handle made from a screw. When it has dried, remove the screw and plaster, sand and finish the whole area.

Sometimes it is necessary to back a hole with newspaper when filling a hole with spackle or patching plaster. A piece of wire screen or plasterboard works well also.

Most wall repair is essentially plastering. On drywall, use drywall cement or spackle to fill the hole. Wood walls are repaired with wood putty.

Nail pops that are tight can simply be driven back in with a hammer and a nail set. Loose nails should be pulled or driven in. Drive a new nail nearby.

Although the tile is usually set in a special cement, it is much easier to glue the replacement tile with white epoxy cement. The wall must be dry. Use a putty knife or cover your finger with a piece of plastic or cellophane and work the epoxy around the tile to match the old grout. Hold the tile in place until the epoxy begins to set.

Clean all cement off the tiles before it hardens.

Wallpaper is difficult to repair. To replace a greasy or torn spot, carefully tear a piece of matching wallpaper from the front of the patch so the backing will be torn away from the edges. Remove the old piece. Match the pattern and paste down the new patch. The seams will always be slightly visible, but the ragged edges will make them less obvious.

Sometimes wallpaper bulges loose in a bubble. Cut a small slit in the bubble and force paste behind it, in order to work the bubble down. The cut is less visible if it is made along a straight line in the wallpaper pattern.

Remove all tape that is loose. Spread joint compound over the area and work new tape down with a putty knife. Then plaster over.

An uneven piece of wallpaper is less noticeable than one that is cut straight. Tearing the backing off the edges will make it even less obvious.

Gluing tiles with white epoxy cement is easier than using grout. The cement must be spread by hand to look like grout. Protect your finger with a piece of plastic.