Sash Window Repair
Regular maintenance is necessary for old weighted sash window. This includes cleaning, lubricating and reinstalling hardware. This also includes adding brush pile strips and replacing ropes to lessen rattling.
Use an utility knife to cut any paint that is securing the window's front. Remove the trim and face to reveal the sash assembly.
Cracked Sash and Frame
If you notice your sash windows aren't sliding up and down as smoothly It's probably time to fix them. A cracked sash or frame could cause draughts or condensation, so it's important to address the issue as soon as possible. The most common issue with old sash windows is that they've simply worn down over time however, you can take several steps to restore them to their former glory.
Examine the window as well as the frame for signs of damage, such as mold or rot. If you find any of these problems then sand the area and paint it to be in line with the rest of the frame. Alternatively, you can replace the entire window, which is usually the best option if the old sash is damaged.
The sash can be shut and opened multiple times to let it free in the event that it's stuck or getting sagging. This will remove any paint that is stuck and will allow the sash. If the sash stays stuck after several attempts, use a hairdryer on low heating to warm the sash and molding to soften the putty. After the sash has been freed you can use a utility knife or, if you prefer, an instrument that looks like a metal spatula with serrated edges called a window saw (available at paint and hardware stores for around $10).
The next step is to separate glass from the sashes. If you're lucky enough, there might only be a couple of nails or screws securing the strip along the length of the molding. If not, you'll need to remove the parting strip with a chisel starting at the sill, and working it up toward the jamb.
It is essential to set up the strip properly after you remove it. If you're lucky, the groove will be large enough to allow a new piece of wood to slide into it and be secured with a few nails. If the groove is too small, you will need to sand it down and then add a strip the proper size.
Sash or Frame Stuck
If a sash-window opens and closes smoothly but becomes stuck at an unspecified point and ceases functioning, the sash or frame might require re-gluing. Over time, old glue degrades, cycles of expansion and contraction occur due to fluctuations in humidity, or rot could begin to take hold. Re-gluing these joints is a easy task and is done without removing the window.
Make sure the frame is thoroughly examined before re-gluing joints. Check to see that all joints are in good condition and free of cracking or leaks. If the wood has begun to rot, it should be removed and chemically stripped. After repairs are complete The wood should be sanded prior applying the stain again.
Begin by examining for a broken sash cord If the sash appears be stuck in the bottom. If there is a broken cord, it has twisted within the frame and got stuck. The window will feel heavier to open and close. To fix this problem cut the cord in close to the sash (a friend can assist you) and pull the cord down to let it out.
Then, use a scraper to remove any remaining paint from the sash and frame. It is important to take it slow, as you don't want to break the glass or damage the mortise or tenon joints. When the upvc door repair majority of the paint is gone you can apply a wood-hardener to the frame and sash. This product will help strengthen the wood and protect it from further rotting.
If you notice that there is a gap between the sash's edge and the frame, you can insert a wide putty blade (not a screwscrewdriver) and carefully move it across the side. You may need to tap the handle of the knife with a hammer to coax it in.
Alternatively, you can use a block of wood in the channel that is just below or above the sash. Tap it with a hammer in order to wedge the sash. If you're above a path, make sure that no one is going to be walking beneath the window.
Leaking Sash or Frame
If water leaks around a window, it's not only a nuisance and a hassle, but it can cause serious damage to the surrounding structure and encourage the growth of mold that is dangerous. The good news is that a leaking window can usually be repaired without replacing the window, provided you know what to look for.
Check for damp wood inside the frame and sash and on the exterior walls near the window, especially in the corners. If you spot water stains, dampness in the ceiling or wall near the window, or decaying wood in the sill it's time to contact a professional. If the water appears to be coming from the outside it is likely to be caused by a blocked drain or flashing that's been installed improperly or not properly.
A rupture in the gasket between the two panes could cause leaks in the inside of double-paned windows. If you have a brand new window with a gasket between the two panes, it's important to test the integrity of the seal on a regular basis to ensure that it's working properly. A simple tool, which looks like a large pencil or pen with a pointed tip, can be used to test the seal. Then, push the end of the tool between the frame and the window to determine if it's tight or loose.
Vinyl frames are prone to air infiltration since PVC expands and contract at a seven-times greater rate than glass. This could cause the sealants used to seal the glass to be stressed and sheared, allowing air to pass through the gap between the sash frame. In certain cases this could be corrected by resealing the glazing using silicone caulk or expanding foam tape.
Examine the hinges of your casement or awning window to make sure they're not leaky and tight. If you see bare wood close to the edges of the window frame or sash on the inside, you must use a sealant made of latex to prevent air from entering.
Damaged Sash and Frame
A damaged frame or sash is an indication that it's time to repair the problem. In most cases it's about replacing the damaged section with a new piece timber. A carpenter who has experience with windows made of sash will be able to do this without needing to replace the entire window. They'll also be able to add modern features like double glazing and sound reduction glass.
Most of the time, these repairs will assist the window in performing better and last longer. The wood in sash windows will naturally expand and shrink in response to changes in humidity so keeping a tight seal is essential to ensure that the window is operating correctly.
It is not uncommon for sash windows to be difficult to open or close. Sash windows should open and close with little effort. If yours are stiff or require a lot of effort, it could be that the sash isn't sitting properly in the frame.
It could be due to a variety of things like poor installation or just age and wear. You can check that the sash is seated properly by looking at it from the outside, and also by poking around the sash with your finger. If the wood is brittle or has holes in it, then it's likely to be decaying. It will need replacing.
If the sash appears to be in good condition, it is likely that the pocket is snagged. Sash pockets are typically snug, but they could be closed over time, or even pinned using nails or screws. You can employ a sharp knife cut along any joints in the paint, and gently pry the pocket open.
After the sash has been removed and the cords are removed, take them off and lower the weights (if needed). Then you can replace the sash horns and the parting beads, as well as the cords and pulleys for the sash. Use decorators caulk around the staff bead, the box and sash pulleys, to seal and minimize draughts.