Installation of plastic window sills with your own hands

When making replacement of old window constructions, it is necessary to install new window sills from modern materials. Today at the top of the popularity of plastic products. The width of the PVC panel is 60 cm, which makes it possible to install them practically at any thickness of the wall. How to install a plastic windowsill qualitatively and reliably read further.

Contents

1. Preparatory work
2. Installation of the window sill from plastic
3. Exclusion - installation of wooden structures

Preparatory work

Preparatory stage includes measurement and selection of construction, selection of tools, purchase of building materials. If there was no replacement of the insulating glass, you will need to dismantle the old window board. When replacing the window, the old window structure is completely removed. Installation of a new double-glazed window is carried out by specialists of the manufacturer. The installation of a plastic window sill can be carried out by specialists or by the customer.

The installation of the plastic window sill is carried out only after installing the window frame and double-glazed windows.

When replacing only the panel, you must first make the correct measurement:

1. Measure the width of the window opening. It is added another 10 cm and the overall length of the structure is obtained.
2. The width of the panel is equal to the distance from the established window to the wall angle plus 5 cm on the ledge. It is not advisable to make the window base wider because the air circulation is disturbed, which leads to fogging of the windows.

Tools and materials

To install a plastic window sill with your own hands, you will need a set of tools:

• carpenter's level;
• electric jigsaw or grinder;
• joinery knife and hacksaw;
• ax and hammer;
• grit;
• marker and paint tape.

From the materials should be prepared:

• sealant;
• gun and mounting foam;
• the window sill;
• three sets of substrates of plastic or wood of different widths;
• two end caps.

Preparing the installation site for the PVC window sill

With the hacksaw, electric jig saw, ax remove the old structure and the window frame. On the edges of the wooden product, the cement screed is removed. Clear the opening from the breakaway building material, insulation.

Specialists install a new window made of PVC, so that between the base of the opening of the window and the lower part of the frame, a distance of at least 5 cm remains. The left opening will serve as a support for the new construction.

If you plan to install the PVC window sill with your own hands longer than the window opening, on the sides at the base sample the grooves. For this you need a hammer and a Bulgarian. First do the sawing of the wall, and then gently knock out the building material with a hammer. The height of the groove is such that the new panel comes in easily. The length of one slot is more than 5 cm.

The distance between the base of the window opening and the frame is frosted with a mounting foam or laid with a heater. After complete hardening, the foam is cut off with a carpenter's knife. When installing a plastic panel the size of the window opening mark the place of fixing brackets at a distance of not more than 80 cm.

We recommend to look at the article, why the plastic windows get fogged.

Before installing the PVC product, it is necessary to clean the base again of debris and dust. Be sure to wet the water with a brick to ensure adhesion.

Installation of a window sill from plastic

All materials are purchased and tools are ready for operation. Begin the installation of the window sill.

1. Determine the width of the structure. It can be the same as the width of the old base. When replacing the windows and installing a new PVC product, calculate its new width. Ideally, the edge of the panel is located in the same plane with the middle of the battery of the heating system. When installing the panel, the edge of which protrudes beyond the battery, they are equipped with ventilation holes in the panel itself. Such holes are also made in the casing in front of the battery. They are needed for good ventilation of the air in front of the window, which protects the window structure from condensation.
2. Select the length of the plastic base. When two windows are located nearby, they prefer one complete construction. When installing PVC window sills to a size equal to the opening of the window, the length of the panel is made shorter by 10 mm.

For selected dimensions, the panels make an order in the construction shop. Masters of the store immediately perform the trimming of the specified parameters. Sometimes they buy the workpiece, and they do the cutting themselves at home.

Widget from SocialMart

1. The support for mounting plastic window sills is made from previously purchased substrates. The width of the bar should be not less than 50 mm, and the length is not more than the width of the product. The shortest substrate should be 100 mm smaller than the width of the panel. Particular attention is paid to the thickness of the substrate. After installing the bar, the panel must enter the window space between the lower frame of the window and the substrate.
2. Before installing the slabs with cement mortar, the surface of the substrate is leveled. One design requires a minimum of three substrates. The optimum distance between the bars is 40-50 cm.
3. The supports are aligned strictly horizontally and check the correctness of the installation using the level in all planes. Make a control panel of the plastic panel. The result of proper fixing of the substrate is a dense occurrence of the structure in the gap between the edge of the window and the support.
4. Installation of plastic window sills with your own hands starts by removing a protective film from the side adjacent to the window. Install the plugs on the ends of the panel. Carefully insert the structure onto the fixed supports.
5. The panel tightens into place. Easy tapping align the product with respect to the window frame. Carry out the reference level in two directions.
6. To the right and left leave gaps of 5 mm, which makes it possible to protect the panel from deformation. At the end of installation, the gaps are sealed with a sealant.
7. Gently spoon the space under the plastic window sill with foam. If the panel is poorly fixed, an increase in the foam in the volume will cause it to skew.
8. The spacers are installed along the edges and in the center of the window opening. They are made independently or buy transforming spacers in the store. They do not allow the mounting foam to raise the installed base of the window opening. When the foam solidifies well, the spacers are dismantled and the excess foam is removed.
9. After installing the slopes, start closing the gaps. At the edges of pasted paint tape. Fill the gap with silicone sealant. Remove the excess and remove the paint tape.
10. The protective film is removed after completion of the work.

If you smudged with foam sill read, how to clean the surface of foam.

Exception - installation of wooden windowsills

Window sills made of oak, pine, beech, ash or cherry wood make the interior more warm and cozy. By giving preference to natural materials, many owners of apartments and houses instead of artificial plastic choose natural wooden grounds. The stores sell wooden panels, varnished in different shades with different surface textures. Having made their choice, they begin to install the wooden window sill with their own hands.

Wall preparation

Clean the substrate from dust and rubbish. The surface is wetted with water to ensure good adhesion. If there is a niche under the window, metal or wooden supports are laid horizontally to prevent the panel from hanging in the air. The construction of wood in this case is worn in a metal frame.

Alignment of the window sill

Pre-expose the window board with wedges, achieving its slope inside the room by only 2 degrees. Along the window the board is strictly horizontal. When all the necessary indicators are reached, the wedges are strengthened with a small amount of solution, taking off the workpiece.

Fastening of wooden window sill

On the base lay a layer of mortar, covering the wedges by 5 mm. In general, cement mortar is used, but plaster or gypsum can be used. Install the windowsill in place and tightly press against the stop on the wedges. The excess is removed with a spatula.

Tip! To insure over the solution, an insulating film is first laid to protect the tree from direct contact with the aqueous solution.

Sealing and reinforcement of fastening

For more reliable fixation from the side of the facade, long self-tapping screws drive through the window frame into the end of the wooden window sill. After the fastening of the structure is completed, fill small slits with liquid acrylic.

Now you know how to install a plastic window sill and a wooden structure yourself. Follow our advice and you will succeed. For a better understanding of the material read, check out the video we picked up about various mounting options.