Name: ROOFING MATERIALS
Uploaded: 2023-10-03
Duration: 6 min 11 s
Description: Good morning everyone, and welcome to this presentation on roofing materials. Today, I'll be discussing the types of materials available, as well as providing guidance on how to estimate the necessary materials for roofing projects. Let's get started!.

[Audio] Good morning everyone, and welcome to this presentation on roofing materials. Today, I'll be discussing the types of materials available, as well as providing guidance on how to estimate the necessary materials for roofing projects. Let's get started!. 

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[Audio] G I sheets are widely used for roofing due to their durable and long-lasting characteristics. There are two types of G I sheets: plain and corrugated. Plain sheets are typically 90x240 centimeters in size. Corrugated sheets come in a standard width of 80 cm with lengths ranging from 150 to 360 cm. With its varied sizes and styles, G I sheets are a great option for most roofing needs.. 

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6-1 GALVANIZED IRON SHEET
 The most common roofing materials is the galvanized iron sheet popularly known as G.I. sheet. G.I. sheet is either plain or corrugated. Plain sheet is used for roofing, gutter, flashing downspout, ridge, hip and valley roll. Plain sheet standard commercial size is 90x240 centimeters long. 
 Corrugated galvanized iron sheet on the other hand, is widely used for roofing and sidings having standard width of 80 centimeters with varying length from 150 to 36 centimeters at consecutive intervals of 30 centimeters.

[Audio] Knowing the details of the materials used for roofing projects is crucial. Gauge is the thickness expressed in hundredth of an inch, and the only way to guarantee you get the right thickness of sheet is to measure its weight. Table 6-1 is an aid to identify the weight of G I sheet according to its length and gauge number.. 

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Gauge means thickness expressed in terms of hundredth of an inch and the only way by which one could be certain that he is buying the right thickness of the sheet is by weight measure. Table 6-1 was prepared to present the various weight of G.I sheet according to its length and gauge number.

[Audio] Review the plan and verify the side lapping. Depending on the number of corrugations, the effective width covering per sheet will vary. Standard end-lapping joint length is 25 to 30 centimeters, so adjust the spacing of the purlins to get the right length sheets. Whenever possible, use longer sheets for economic optimization and to minimize end lapping joints.. 

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Before estimating the required number of corrugated roofing sheets, the following information sould be considered first:

Verify the plan if the side lapping is 1-1/2 or 2-1/2 corrugations. If it is 1-1/2 corrugations the effective width covering per sheet is .70 meters or .60 meters for 2-1/2 corrugations.   The standard end-lapping joint is from 25 to 30 centimeters long. This is important determining the length of the sheet to be used. Spacing of the purlins should be proportionally adjusted to the length of the G.I. sheets to avoid unnecessary cutting or excessive overlapping. A good roofing design minimize end lapping joint. Longer length of roofing sheet is preferred for economical reasons.

G.I. Sheets
Purlins
End Lapping
212 Com
Side Lawing

[Audio] The materials you use in roofing are as important as the methods used. Galvanized iron (G I ) is a common material for roofing. To calculate how much G I is needed for a roof, you need to find the length of the purlins along the gutter line and divide it by the effective width of one G I sheet. That will tell you the number of sheets needed for one row. Also, calculate the length of the rafter or top chord and decide on a combination of roofing sheets with this length. Multiply the result from the previous calculation by each length of sheet to find the final number. Use Table 6-2 and 6-3 to determine the amount of G I nails, rivets, washers, plain anchor straps, and lead washers; all measured in kilograms.. 

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6-2 ESTIMATING G.I ROOF AND ITS ACCESSORIES

Determine the length of the purlins along the gutter line Divide the length by the effective width covering of one G.I sheet using either .70 for 1½ corrugations or .60 m. for 2½ corrugations. The result is the number of sheets for one row. Determine the length of the rafter or top chord. Choose the right combination of roofing sheets that will satisfy this length considering the 25 to 30 centimeters standard end lapping. Multiply the result found in step-2 by each length of sheet combination as found in step-3. Determine the number of G.I. nails or rivets and washers in kilograms using Table 6-2 and 6-3 Take note that the number of plain anchor strap and lead washer is the same as the quantity of rivets.

[Audio] I'll be discussing roofing materials, particularly gutters, flashing, ridge, hipped and valley rolls. They play an important role in constructing buildings and it's important to be able to correctly calculate the quantity of G I s needed for the job. As a tinsmith, it's imperative to use every inch of the tin sheet and avoid wasting it. You should also start with the larger cuts to save time. To work out the quantity, you should first determine the total length of the gutter and divide it by 2.35 meters, then calculate the total width of one gutter. You should then divide the width of one G I sheet by the result to determine how many gutters can be made with the sheet, with the fractional value used for the smaller components.. 

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6-3 GUTTER, FLASHING, RIDGE, HIPPED AND VALLEY ROLL

These materials fall under the category of roof accessories in building construction. Calculating the quantity of ordinary G.I.s is all that is necessary to estimate this sort of accessory. sheet necessary to construct the gutter, flashing, and other rolls in the precise dimensions and shapes shown on the design. Utilizing every square inch of the tin sheet is the main thing to keep in mind when working as a tinsmith. Any rash cutting of the tin sheet must be prevented as much as possible. The broadest area of the roof accessories should be cut first, then the smallest. ESTIMATING PROCEDURES: Determine the total length of the gutter in meters. Divide this length by 2.35 meter to find the number of gutter required. (2.35 is the effective length of one gutter) Find the total width of one gutter based from the cross section of the detailed plan. The width of one plain G.I. sheet is .90 meters. Divide .90 m. by the result of step 3 to find out how many gutter could be made out from one plain G.I. sheet. The fractional value as extra cut will be reserved for other smaller parts. Divide the result of step 2 by the result of step 4. the result is the required number of G.I sheet.

[Audio] When it comes to roofing, there are a variety of materials available. Galvanized iron (GI) sheets are one of the most popular materials to use. To install GI sheets on a roof, it is important to measure the length and width of the sheets accurately. To determine the total length of the roof gutter, start by measuring the total length, 56.00 meters. After that, divide the length by 2.35 m, which is the effective length of the gutter. This will give you 23.82, which can be rounded up to 24 pieces. Subtract the width of the gutter, 52.5 cm, from the standard width of one GI sheet, 90 cm. This leaves you with 37.5 cm of extra cut. Finally, order the appropriate material, which in this case would be 24 - 90 cm x 2.40 cm (8") plain sheet.. 

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SOLUTION. Find the total length of the roof gutter          Length = 2 (18.00) + 2 (10.00) = 56.00 meters 2. Divide length by 2.35 m. the effective length of gutter.      56.00/2.35 = 23.82 say 24 pieces 3. Then subtract the width of gutter 52.5 from 90 centimeters standard with  of one plain G.I. sheet.     90 cm. – 52.5 = 37.5 extra cut 4. Order:               24-90 cm (36”) x 2.40 (8”) plain sheet

10M.
18M.
Gutter
ROOF PLAN
2.5 n.
5.0 cm.
25
15
20 cm.
7.5 n
CROSS SECTION OF GUTTER
FIGURE 6-7

[Audio] Asbestos roofing components such as gutter, ridge, hip and valley rolls are pre-manufactured, making the installation process relatively straightforward. Various types of asbestos roofing are available, including standard and four V corrugated sheet, placa romana, kanaletas, tencor corrugated sheet, and Ardex standard and super lightweight corrugated sheet. Asbestos is renowned for its strength and resilience in any climate, making it the perfect option for roofing purposes.. 

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Unlike galvanized iron roofing sheet where accessories from gutter down to the smallest anchor straps are made on site out from the standard size of plain G.I. sheet, estimating asbestos roofing material is much simpler because all the roof accessories and parts to be used such as gutter, ridge, hip, and valley rolls are all factory made ready for installation.  Different Kinds of Asbestos Roofing Standard corrugated sheet 4-V Corrugated sheet Placa Romana Kanaletas Tencor corrugated sheet Ardex lightweight corrugated sheet         a. Standard Ardex         b. Super Ardex

[Audio] When it comes to roofing materials, it is essential to make sure that the correct amount is acquired for the job. To estimate the necessary amount of material, some basic calculations are needed. To determine the required amount of corrugated asbestos roofing, divide the total length of the gutter by the effective width covering of a single sheet. To calculate the needed quantity of accessories such as flashing, gutter, ridge, hip and valley roll, divide the total length of each part by the effective length of the accessories. For other parts such as ridge end cap, apron flashing, gutter corner, down spout and fittings, their quantification can be found by directly counting them as they generally come in standard sizes.. 

Scene 9

The number of corrugated asbestos roofing required is determined by dividing the gutter length by the effective width covering of one sheet.  In finding the number of accessories such as flashing, gutter, ridge, hip and valley roll, divide each total length by the effective length of the accessories. Other parts such as ridge end cap, apron flashing, gutter corner, down spout and fittings are found by direct counting. They are all ready made according factory standard sizes.

[Audio] Having the right roofing materials is essential to any construction and Colorbond is the perfect solution. It is a corrosion resistant coated steel sheet, pre-painted steel ribbed tray roofing and walling with a range of special features including a concealed fastening, look action rib design, attractive fluted rays, near flat roof slopes, leg supports-wider spaced, strong lightweight steel and custom cut long length. Colorbond offers a complete roofing solution that is reliable and attractive. Thank you.. 

Scene 10

Colorbond is a corrosion resistant coated steel sheet pre-painted steel ribbed tray roofing and walling with the following special featuews Convealed fastening Look action rib design Attractive flued rays Near flat roof slopes Lee supports-wider spaced Strong lightweight steel Custom cut long length.

mm
Female Rib
203 mm
ROOVING MATERIALS
2? mm
Moan Rib Wk'tt•,
Male Rib
203 mm
mm Coverage
(427 mm) Overall Width
FIGURE 6-16 COLORBOND KLIGuOK

ROOFING 
MATERIALS

Scene 0

Good morning everyone, and welcome to this presentation on roofing materials

Today, I'll be discussing the types of materials available, as well as providing guidance on how to estimate the necessary materials for roofing projects

avatar

G I  sheets are widely used for roofing due to their durable and long-lasting characteristics

Plain sheets are typically 90x240 centimeters in size

Corrugated sheets come in a standard width of 80 cm with lengths ranging from 150 to 360 cm

With its varied sizes and styles, G I  sheets are a great option for most roofing needs.

Knowing the details of the materials used for roofing projects is crucial

Gauge is the thickness expressed in hundredth of an inch, and the only way to guarantee you get the right thickness of sheet is to measure its weight

Table 6-1 is an aid to identify the weight of G I sheet according to its length and gauge number.

slide3-hotlink8

Review the plan and verify the side lapping

Depending on the number of corrugations, the effective width covering per sheet will vary

Standard end-lapping joint length is 25 to 30 centimeters, so adjust the spacing of the purlins to get the right length sheets

Whenever possible, use longer sheets for economic optimization and to minimize end lapping joints.

slide4-hotlink4

The materials you use in roofing are as important as the methods used

Galvanized iron (G I ) is a common material for roofing

To calculate how much G I  is needed for a roof, you need to find the length of the purlins along the gutter line and divide it by the effective width of one G I  sheet

That will tell you the number of sheets needed for one row

Also, calculate the length of the rafter or top chord and decide on a combination of roofing sheets with this length

Multiply the result from the previous calculation by each length of sheet to find the final number

Use Table 6-2 and 6-3 to determine the amount of G I  nails, rivets, washers, plain anchor straps, and lead washers

I'll be discussing roofing materials, particularly gutters, flashing, ridge, hipped and valley rolls

They play an important role in constructing buildings and it's important to be able to correctly calculate the quantity of G I s needed for the job

As a tinsmith, it's imperative to use every inch of the tin sheet and avoid wasting it

You should also start with the larger cuts to save time

To work out the quantity, you should first determine the total length of the gutter and divide it by 2.35 meters, then calculate the total width of one gutter

You should then divide the width of one G I  sheet by the result to determine how many gutters can be made with the sheet, with the fractional value used for the smaller components.

When it comes to roofing, there are a variety of materials available

Galvanized iron (GI) sheets are one of the most popular materials to use

To install GI sheets on a roof, it is important to measure the length and width of the sheets accurately

To determine the total length of the roof gutter, start by measuring the total length, 56.00 meters

After that, divide the length by 2.35 m, which is the effective length of the gutter

This will give you 23.82, which can be rounded up to 24 pieces

Subtract the width of the gutter, 52.5 cm, from the standard width of one GI sheet, 90 cm

This leaves you with 37.5 cm of extra cut

Finally, order the appropriate material, which in this case would be 24 - 90 cm x 2.40 cm (8") plain sheet.

Asbestos roofing components such as gutter, ridge, hip and valley rolls are pre-manufactured, making the installation process relatively straightforward

Various types of asbestos roofing are available, including standard and four V corrugated sheet, placa romana, kanaletas, tencor corrugated sheet, and Ardex standard and super lightweight corrugated sheet

Asbestos is renowned for its strength and resilience in any climate, making it the perfect option for roofing purposes.

When it comes to roofing materials, it is essential to make sure that the correct amount is acquired for the job

To estimate the necessary amount of material, some basic calculations are needed

To determine the required amount of corrugated asbestos roofing, divide the total length of the gutter by the effective width covering of a single sheet

To calculate the needed quantity of accessories such as flashing, gutter, ridge, hip and valley roll, divide the total length of each part by the effective length of the accessories

For other parts such as ridge end cap, apron flashing, gutter corner, down spout and fittings, their quantification can be found by directly counting them as they generally come in standard sizes.

Having the right roofing materials is essential to any construction and Colorbond is the perfect solution

It is a corrosion resistant coated steel sheet, pre-painted steel ribbed tray roofing and walling with a range of special features including a concealed fastening, look action rib design, attractive fluted rays, near flat roof slopes, leg supports-wider spaced, strong lightweight steel and custom cut long length

Colorbond offers a complete roofing solution that is reliable and attractive