Speeses of the slate of slate: the main characteristics of the wave and flat material

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How the sizes of the wave slate are regulated

Numerous reliable sources, including some that are highly regarded, list GOST 30340-95 as a regulation that outlines the wave slate’s current specifications, including sizes. This is untrue. GOST 30340-95 is an antiquated guideline that was rendered void in 2013. Currently in use is another standard, GOST 30340-2012, which goes by a different name: "sheets of chrysotile muddered," as opposed to "sheets of asbestos-cement wavy."

The terrifying Asbest was eliminated from the new GOST’s name by its creators, who substituted the neutral term for the non-specialist chrysotil. Furthermore, the term "asbest" appears only twice in the new standard’s text—once in the organization’s name that this GOST prepared. However, this does not imply in the slightest that the slate is no longer asbestos in accordance with the new standard.

The standard’s developers chose to use chrysotil, a form of asbestos that is also unknown to most private developers. Chrysotilic asbestos is classified as a first-class carcinogen, despite being regarded as less hazardous than amphibol. Therefore, the same safety measures that apply to handling material derived from amphibole asbestos also apply to working with chrysotile-cement wave slate, regardless of size.

This implies that the slate cannot be cut into rough circles because, even in the absence of asbestos particles, the fine dust created during work creates whole clouds that are hazardous in and of themselves. You will need a respirator, goggles, and gloves to install it, and once the roofing is installed, you must wash your hands and clothes to remove asbestos dust from your skin and hair.

The flat slate standard is no different. The GOST 18124-2012 "Sheets of Chrysotile – Cement Flat" has superseded the outdated GOST 18124-95 "Sheets of asbestos-cement flat," which ceased to be valid in 2013.

Furthermore, certain varieties of slate are produced based on technical requirements rather than GOST (THAT). In this instance, the slate’s other functional attributes and sheet size are set by the manufacturer.

Consequently, take note of the real parameters in addition to the number of waves and external similarities when purchasing slate for roof repair or sheets because of a computation error. If not, the material might not fit at all because, even with the same number of waves, the wave sizes made in TU and according to GOST may differ.

Varieties of slate and their size

Most people associate the word "slate" with gray, wavy roofing material. And it makes sense—the slate is typically just that. But there’s a flat slate in addition to wavy. The same asbestos cement was used to make these sheets, and it was poured into an even shape rather than a wave-like one. The brands and types of slate are discussed below.

The dimensions of the wave slate

The primary product, or perhaps the company’s flagship offering, is the wave slate, made by any company that produces asbestos cement. It’s an enamel layer of red, blue, brown, or green that covers a traditional unpainted color that’s more resilient. Additionally, with varying wave counts, which essentially determine the wave slate’s size.

Eight -wave slate

In construction, this kind of slate is the most widely used. It is simpler to install even though it is quite large and heavy. Additionally, the 8-wave slate’s useful area has increased due to its larger size. The more waves there are, the less area goes beneath the surface because side waves always overlap each other when laying sheets.

Eight-wave slate is classified as part of Symmetric profile 40/150 by GOST.

• 40-this is the height of the wave of the 8-wave slate in millimeters;
• 150 is a pitch of a wave in millimeters.

Relax The following are the 8-wave slate leaf’s dimensions:

• The thickness of the sheet is 4.7 mm, 5.2 mm, 5.8 mm;
• The standard length is 1750 mm, but it can change the manufacturer on order;
• width – 1130 mm;
• Full area – 1.978 m 2;
• The width of the overlapping edge is 43 mm;
• the width of the overlapped edge is 37 mm;
• useful sheet width – 1050 mm;
• useful area of ​​the sheet – 1.84 m 2 .

The area and useful width are intended to overlap in a single wave. It is smaller in areas where the slate overlaps into two waves. Furthermore, the wave’s reference size for slope is the width of its edges. In actuality, it may vary slightly based on the manufacturer and the party. A slight variation between the actual and standard edge widths is acceptable and does not serve as grounds for rejecting the content.

In contrast to the 8-wave slate’s linear size, its weight is dependent on humidity. Thus, it is preferable to use averaged actual weight values rather than calculated weight values when calculating the load. The simplest way to obtain them is to weigh a truckload of slate. Next, divide the stack’s total weight by the number of sheets it contains. The weight calculation indicators are limited to initial load assessments. The table provides them:

Profile 51/177 is an asymmetric slate with six waves. Consequently, the sheet has:

• The wave step is 177 mm;
• The height of the slate wave is 51 mm.

Due to the larger height of the six -wave slate, bearing capacity is higher than in material with 7 and 8 waves. In addition, due to the increased pitch of the wave and the larger width of the overlapping edges of such a slate, you can not mount with an overlap on the wave, but with the clutch of the edges. The installation method is approximately the same as that of the classic “monk monk”: the upper edge of one sheet enters the lower edge of the yolk of the other, along which water flows. In this case, there is practically no capillary suction of water, since the edges have no tight contact, therefore, there is no “capillary”.

Let’s list the primary slate sizes for the 6-wave:

• Leaf thickness – 5.2 mm, 6 mm;
• length – according to GOST 625 mm, 1250 mm, 1500 mm, 1750 mm, 5000 mm, but, as in other cases, the manufacturer can produce material of non -standard length;
• width – 1097 mm;
• Full area – 0.69 m 2, 1.37 m 2, 1.65 m 2, 1.92 m 2, 5.485 m 2, depending on the length;
• The width of the overlapping edge is 64 mm;
• the width of the overlapped edge is 60 mm;
• useful sheet width – 973 mm;
• The useful area of ​​the sheet is 0.61 m 2, 1.22 m 2, 1.46 m 2, 1.7 m 2, 4.865 m 2, depending on the width.

The eight-wave and six-wave slates have similar widths (1130 mm and 1097 mm, respectively; the difference is about 3%), but at the same length (1.7 m 2 and 1.84 m 2, respectively), they have very different areas. As a result, a six-wave slate is only useful for jobs that require its exceptional bearing capacity.

The six-wave slate weighs more but has a slightly narrower width than the eight-wave slate. This is because the slate with six waves has a larger surface area as a result of a larger wave height. As a result, more asbestos-cement mixture is required for its production. The difference is not very noticeable, though: 1 m 2 of slate sheets with eight waves weigh 11.83 kg, and with six waves, 11.25 kg, depending on their thickness of 5.2 mm.

The size of the flat slate sheet varies greatly as well because of the variety of tasks. However, this is always a rectangular asbestos-cement plate that is rather thick; it is rarely square in shape.

The flat slate’s measurements, such as:

• length – 1200 mm, 1750 mm, 2500 mm, 3000 mm, 3600 mm;
• width – 1120 mm, 1200 mm, 1500 mm, 1570 mm;
• thickness – 6 mm, 7 mm, 8 mm, 10 mm, 12 mm.

Similar to wavy slate, the weight of the flat slate is determined by the sheet’s size and humidity. Furthermore, the kind of slate has an impact: the pressed sheet weighs more than the unprofitable one.

The computed weight values are shown in the table above. For computations, the moisture content of the pressed slate is assumed to be 10%, and that of the unprotected to be 12%.

Error or marriage?

Like flat slate, the dimensions of the wavy slate can vary even within a single batch. This is because of the unique characteristics of how this material is made; you shouldn’t anticipate perfect standards compliance and an asbestos-cement mixture that fits the ideal profile. However, departures from these guidelines shouldn’t be overly drastic. Within the GOST are The most significant deviation values are listed below, along with the most acceptable values:

Checking every sheet is advised when purchasing a small quantity of material because production features frequently result in both marriage and significant size variability. Verifying the sheet’s thickness and linear dimensions is particularly crucial.

When accepting cargo, try to inspect at least two or three sheets from each package if you purchase slate in bulk. While this won’t prevent single faulty sheets, it will aid in removing mass marriages, which are regrettably also occasionally discovered.

There are two main types of slate roofs: wave and flat. Distinctive features of each style satisfy various functional requirements and aesthetic preferences.

Wave slate, sometimes referred to as scalloped or wavy slate, is distinguished by its flowing form, which gives roofs a dynamic and textured look. This design enhances the architectural charm of buildings, particularly those with a traditional or rustic aesthetic, in addition to adding visual interest. Wave slate’s waves can be customized to fit a variety of architectural styles and tastes by varying in amplitude and frequency.

However, the smooth, even surface of flat slate gives it a sleek, contemporary appearance. This design is popular because of its simple lines and modern appeal, which makes it appropriate for both new construction with a minimalist aesthetic and historical renovations. Flat slate is a popular choice for roofing because it can blend in with a variety of architectural styles, from traditional to contemporary.

Common benefits of wave and flat slate materials include their longevity, resilience to weather, and fire safety. When properly maintained, slate roofs can last up to a century, making them highly durable. Slate is also a natural material that provides excellent protection from weather-related factors like wind, rain, and snow, making it a dependable option for areas with severe weather.

In the end, architectural style, desired visual impact, and personal preference will determine whether to use flat slate or wave slate. Whether choosing the sleek elegance of flat slate or the dynamic texture of wave slate, architects and homeowners can be sure that the roofing material they choose will add value and long-lasting protection to a building in addition to enhancing its aesthetic appeal.

"Knowing the main distinctions between wave and flat types of slate is essential to selecting the appropriate one for your roof. Wave slates provide an effective way to shed water while maintaining a traditional aesthetic due to their undulating surface. Conversely, flat slates are simpler to install and have a sleeker, more contemporary appearance. Because both varieties are strong and resistant to weather, slate is a dependable material for roofs. Homeowners can make an educated choice that strikes a balance between longevity, style, and practicality for their roofing needs by investigating these features."

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