Features of external and internal corners for siding

Siding is a common material for cladding a home’s exterior because it is aesthetically pleasing and long-lasting. But the finer points count when it comes to siding installation. Precision when handling the corners—both internal and external—is essential to a well-done siding job.

A siding project’s external corners are frequently the most noticeable components. They must be aesthetically pleasing in addition to being functional. External corner pieces that are installed correctly guarantee a tidy and polished appearance while shielding the edges from the weather.

Internal corners, however, are just as significant even though they may not be as visible. To keep the siding’s overall integrity and stop water infiltration, these corners need to be finished with care.

Your siding project’s outcome may differ significantly if you are aware of the characteristics and installation methods for both kinds of corners.

Achieving a neat, polished exterior for your home requires an understanding of the characteristics of external and internal corners for siding. When these corners are installed and aligned correctly, your siding will not only look fantastic but also successfully shield your house from the weather. You can improve the longevity and aesthetics of your siding project by attending to the little things, like the kind of corner pieces and the proper installation methods.

Purpose and characteristics of corner elements

The chosen variety dictates how products are used. Every product is categorized into groups based on the various tasks they accomplish.

Simple

Creating the desired decorative look is the main goal. The components also serve as barriers, keeping wind and precipitation from getting through. possess a regular form with a 90-degree angle. When the primary task is finished, they are installed.

The strip’s design allows it to completely enclose the butt joints, creating a seamless transition. While the elements can come in a wide variety of colors, the most common options that are offered for sale are light and dark ones.

The manufacturer determines the range of sizes; the most common dimensions are width (between 50 * 50 mm and 65 * 65 mm) and length (between 2 and 4 m).

Note: As an alternative, you can also use pieces of other finishing materials that are the same shape.

Complex

The most popular type, which serves multiple purposes:

• Simplifying installation and increasing reliability. The elements have a place for fixing the edge of the siding, identical in appearance to the J-profile.

• Improving decorativeness. The part covers an unattractive joint of two sections of the facade cladding. Smooth, textured or relief products can be used to create an additional visual effect.
• Increasing the protective parameters of the finish. By delimiting the area of ​​the panels, the corner tightly covers the junction of two walls of the house. This protects the base from moisture and other environmental impacts.

Complex element dimensions are manufacturer-dependent as well. The most typical specifications are:

1. External part: the width of the side sections is 65 * 65 and 100 * 100 (110 * 110) mm, installation width is 80 and 120 mm, length is from 200 to 360 cm.
2. Internal corner (with one visible plane): the width is most often 80 mm, the length is similar to the previous option.

Basement

Although this product is frequently categorized as belonging to a different group, it can also be used to finish facade areas. Despite having a stone or brick veneer appearance, the elements are thought to be complex. The components measure 42–47 cm in length and 9–16 cm in width on the sides.

Features of joining

Connecting along the length (height) is necessary because installing fragments may not always allow for the full section to be used. There are various ways to go about this:

Overlap mounting

A fairly popular technique that involves setting the upper element on top of the lower element. Instructions for installation:

1. The product located below must be set and the level must be marked. To position the panels along the upper edge, the fastening sections are cut (5–6 mm).
2. The size of the superimposed fragment is determined, 20–25 mm (overlap) is added to it. A fixation section is cut out of the part, the size of which is equal to the expected overlap, plus 5 mm.
3. The products are connected.
4. Before fixing the corners, the gap between their internal parts is checked, it should be at least 9-10 mm.

Extension

If the section is expanded with an overlay, the transition can also take that form. A section of the applied element that has been cut off is used for these purposes. Here is the technology:

1. The size of the working fragment is 10-15 cm. Along its inner surface, on both sides, places for fixing the siding are cut out to a width of 20 mm plus 7-8 mm. Considering that the insert part is the junction of the upper and lower sections, its dimensions should be taken into account in the general calculations of the length of the corner.
2. Connecting all the elements is quite simple, for this they must be installed in a precise sequence: the product is exposed from the ground or base, the connection is baited, after which the remaining space is designed, everything is fixed. As a result, two overlaps will be obtained. There should be a gap of at least 5-6 mm between the inner sides of all joints.

The potential for moisture penetration is a major drawback of the technique, necessitating the use of an additional elastic sealant.

Other approaches are not advised for use because they have a great deal more drawbacks.

Note: When installing base series fragments, a starting corner strip can be used as an extra component.

Installation of corner profiles

At a specific point in the finishing process, fittings must be fastened, which involves a number of required steps.

Internal corner

It is attachable based on the following algorithm:

1. The product is exposed after fixing the starting strip. There are two options for fitting: the first is to form a gap between the extensions, the second is to trim the lower part of the corner element, which allows the initial segment to be flush. Due to the fact that the inner section of the frame is not always located at an angle of 90 degrees, if necessary, the part can be slightly bent. This will ensure a tight and even fit.
2. Gaps are left at the top and bottom to compensate for expansion.
3. The element should be fastened with screws. If the existing holes are not suitable, then additional ones are cut by hand. The screw is screwed in the center at a right angle with a gap of 1 mm.

Sheathing the roof and gable overhangs also takes place at this angle.

External element

For outside work, an external portion of a complex shape is best. Installation is completed in line with the plan:

1. The element is applied to the corner, the location is marked. If necessary, the area for extension is determined.
2. Taking into account the gap, the starting strip is set.
3. The outer segment is lowered by 4-5 mm from the initial fragment, but with a mandatory gap at the top and bottom.
4. If necessary, the corner can be slightly bent in the desired direction. This is especially important when working without lathing.
5. Fixing is carried out with screws according to the same principle as the previous version.

The outer corner segment serves as a casing to finish window and door openings.

You should know this! Holes are drilled in them so that basic elements can be attached over the created cladding.

It’s crucial to pay attention to the corners when working with siding. The appearance and longevity of the siding installation are significantly influenced by both the internal and external corners.

Your home can be better protected from moisture and other environmental factors by selecting the appropriate corner trim type and making sure it is installed correctly. It also gives your siding project a polished, tidy appearance.

Knowing the features and purposes of siding corners will guarantee a successful and durable installation, whether you choose to do it yourself or hire an expert.

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