How many slates does a standard roof have?

How many slates does the average roof have?

The general rule of thumb – and for this example we’ll use the most common size of 500×250 or “20×10” – is for every 1 meter squared of roof, you need 21 slates.

How many slates does a m2 roof have?

The amount of slates you need per square metre (m2) depends on which slate size you’re using. For example, if you’re using a 20×10 slate (500mmx250mm), you will require 21 slate per m2. A 24×12 slate (600mmx300mm) demands only 13 slate per m2.

How do I work out how many slates I need for my roof?

Slate & Half Slates

As a guide, a slate of 500 x 250 sizes uses a slate and half of 500 x 375. You would need 2.5 of these slate per linear metre. Therefore, if your rafter length was 4 linear meters, your calculation would be 4 x 2.5 = 10 Quantity slate & Half’s.

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What size is a standard roof slate?

Slate roof tiles can range in size from 12” (length) x 6” (wide) up to 24” (length) x 12” (wide).

How many slates are there?

How many slates per square metre (m2)?

Quantity of Slates
Slate Size Lap mm
600 x 300 12.1 14.5
500 x 300 14.8 18.5
500 x 250 17.8 22.2

How many slates does a pallet of roof have?

Cafersa LV11 Natural Spanish Roof Slate 500mm x 250mm (Pallet of 600)

How many slates can a roofer lay in a day?

An average roofer can lay 30 tiles an hour, which, therefore, equates to 3m2. Plain tiles can be laid by a roofer at the rate of 80 per hour. But that amount of tiles only covers 1.3m2, so there’s considerably more work involved in covering a plain tile roof.

How many tiles fit in a square metre?

This is a common question and ultimately this depends on the size of the tile. A 150 x 150mm will give you approximately 44 tiles to a square metre, but a 600 x 600mm tile will give you 2.8 tiles per square metre.

How much should slates overlap?

On a slate roof this is the critical overlap and is necessary to prevent water penetration and leakage. The roof pitch typically relates to the required head lap as follows: 20 degrees: 115 mm minimum head lap. 25 degrees: 85 mm.

What is the minimum pitch for a slate roof?

Natural Slate: The general recommendation for the minimum pitch for natural slate is 25°. There are some manufacturers that can go slightly lower, such as the SIGA 56M Natural slate, which can go down to 20° in some instances if used with slate hook systems.

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How many tiles do I need for roof?

Take the roof width and multiply it by the slope height. This calculation will give you half the roof area, so then simply multiply by 2 to give you the area of both sides. You now have the area of your roof in square metres.

How do you calculate the area of a roof?

To find your roof’s total square footage:

  1. Measure the length and width of each plane on the roof (including dormers) then multiply length times width.
  2. Add the square footage of each of the planes together.

How do you size slates?

When considering the right size of slate for your project the following rules of thumb apply:

  1. Bigger slates are more aesthetically pleasing on larger roofs.
  2. Wider slates work well in areas of high rainfall.
  3. Smaller slates are useful for complicated roofs with lots features like hips, valleys, dormers.

What are the best roof slates?

Welsh slate is considered by many as the best natural slate in the world. Welsh slate is available in either heather (purple) or blue-grey. Penrhyn slate has a beautiful soft blue/purple appearance and can be expected to last more than 100 years.

How much does a piece of slate cost?

Slate tiles themselves can run anywhere from $4 to $28 per square foot, but most cost between $4 and $10 per square foot.