ROOFING MATERIALS

[Audio] Good morning, everyone. Today I will be talking about roofing materials and their use in the construction industry. We will be looking at galvanized iron sheets, and how they are used for roofing, gutters, flashing downspouts, and valleys. We will also discuss how to estimate the sheet size and materials needed for a roofing job. Let's get started..

[Audio] The 6-1 Galvanized Iron Sheet is a popular choice when it comes to roofing materials. Plain and corrugated sheets are offered, with the plain sheet used for many roofing tasks like gutter, flashing, downspout, ridge, hip, and valley roll. It has a standard commercial size of 90x240 centimeters. The corrugated version is a good selection for roofing and sidings, coming with a standard width of 80 centimeters and available in lengths from 150 to 360 centimeters in increments of 30 centimeters..

[Audio] When it comes to roofing, the weight measure is the only reliable way to ensure you purchase the suitable thickness of sheet. For reference, Table 6-1 outlines the various weights of G I sheet based on its length and gauge number. To ensure the correct sheet is bought, use the measurements in the table as a guide..

[Audio] To ensure the best-quality roofing for your project, it is important to consider a few factors. Firstly, you must check if the plan specifies 1-1/2 or 2-1/2 corrugations. The effective width covering per sheet for 1-1/2 corrugations is 0.70 meters and for 2-1/2 corrugations is 0.60 meters. The standard end-lapping joint should be between 25 and 30 centimeters long and the spacing of the purlins should be proportionally adjusted to the length of the G I sheets. Lastly, for economical reasons, it is recommended to use longer-length roofing sheets..

[Audio] To ensure a successful roof installation, it is important to understand the process of estimating G I roof and its accessories. First, you must calculate the length of the purlins along the gutter line and divide that number by the effective width of the G I sheets to determine the number of sheets needed for a row. Additionally, the rafter or top chord length must be taken into account to determine the right combination of G I sheets to satisfy that length, due to the standard 25 to 30 centimeters end lapping. Finally, the number of G I nails or rivets and washers should be determined using Table 6-2 and 6-3. It is also essential to remember to include the same quantity of plain anchor strap and lead washers as the rivets..

[Audio] It is essential to understand the process of calculating the quantity of ordinary G I s needed for each item in a roofing project, taking into account every square inch of the tin sheet and cutting in the necessary dimensions and shapes. It is also important to use the largest area of the material first, while saving the fractional values for smaller parts. By following a few simple steps and doing the necessary calculations, the right materials will be available to complete the roofing project, such as gutters, flashing, ridges, hipped and valley rolls..

[Audio] This presentation is about roofing materials. To find the total length of the roof gutter, we add up two 18.00 meter lengths and two 10.00 meter lengths, which gives us 56.00 meters. After that, we divide it by 2.35 meters, the effective length of the gutter, to get 23.82, or 24 pieces. Subtracting the width of the gutter from the 90 centimeter standard width of one plain G I sheet gives us an extra cut of 37.5. Finally, we need to order 24 pieces of 90 cm x 2.40 plain sheets. That wraps up the solution..

[Audio] Asbestos roofing materials provide numerous benefits in comparison to other roofing materials, such as galvanized iron roofing sheets. Gutter, ridge, hip and valley rolls in asbestos roofing are factory-made and ready for installation, making estimation much easier. Asbestos roofing is available in various materials, from standard and 4-V corrugated sheets to tencor and placa romana, as well as Ardex lightweight corrugated sheets in both standard and super varieties. Installing asbestos roofing is fast and straightforward, and the materials are dependable..

[Audio] When it comes to roofing material estimations, the process is relatively straightforward. To calculate the amount of corrugated asbestos roofing needed, divide the gutter length by the effective width of one sheet. For accessories such as flashing, gutter, ridge, hip and valley roll, divide each total length by the effective length of the accessory. Parts like ridge end cap, apron flashing, gutter corner, down spout and fittings can be found by direct counting, as they come in pre-made factory sizes..

[Audio] With its clever concealed fastening system and look-action rib design, Colorbond is a durable and resilient material, perfect for any roofing project. Its near flat roof slopes, wide support beams and custom cut long lengths are ideal for any job. Colorbond is strong and lightweight steel that is corrosion-resistant and pre-painted for easy installation, making it the perfect choice for roofing solutions..