Best answer: What size are roof slates?

Slate roof tiles can range in size from 12” (length) x 6” (wide) up to 24” (length) x 12” (wide). Special sizes such as slate-and-a-half can be ordered to reach into valleys, gable ends, hips and dormers.

How many slates are in a square?

Standard Roofing Slate Sizes

Slate Size (inches) Pieces per Square Pounds per Square
18 x 12 160 800
18 x 11 175 800
18 x 10 192 800
18 x 9 213 800

What size are slates?

Whilst the most commonly used slate size in England and Wales is 500x250mm or 20”x10”, this hides a variety of sizes from 400×250 in the North East, to 600×300 in the North West of England, with each region having a distinctive size to create a local ‘look’ and blend with the area.

How thick is a roof slate?

The most common thickness is ¼” and weighs approximately 935 pounds per square when installed with a 3” headlap. Some quarries such as Glendyne, which produces our North Country Unfading Black slate can be split consistently and sold 3/16”, ¼”, 3/8” and ½”.

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What size are slate battens?

For natural double lap slates (sized or random), the minimum width is 50mm and depth 25mm, for a span of up to 600mm. For natural double lap slates (fibre cement or concrete), the minimum width is 38mm and depth 25mm, for a span of up to 450mm; and 50mm width, 25mm depth for a span of up to 600mm.

How do I calculate how many slates I need?

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.

How much Batten do you need for a slate roof?

In most cases, irrespective of rafter spacings, 50 x 25mm battens should be used for our standard preholed fibre cement slates. Where BS 5534 suggests 38 x 25mm battens are acceptable, the slates should only be laid with 100 or 110mm lap.

Are roof tiles a standard size?

Plain roof tiles will typically be 265mm x 165mm in size, with some minor variance depending on the manufacturer. For example, the Redland Plain Concrete tile is measured at 266mm x 165mm.

Is Spanish slate as good as Welsh?

Spanish slate is durable, really strong and will protect your home against the natural elements for many years. … – Welsh slate due to its age, is much denser which means it’s a lot stronger and durable than Spanish slate. Spanish slate is still durable but will discolour and degrade faster than Welsh Slate.

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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.

What is a natural slate roof?

Natural slate is highly impervious to water and fire and will stand the test of time in extreme temperatures, high or low. These traits appoint slate in the upper echelon of quality roofing materials. Slate roof tiles are created with natural slate, mined and manufactured in three grades.

What are the benefits of a slate roof?

Other benefits of slate roofing include its natural ability to be fire resistant and mold resistant and slate’s low water absorption makes it very resistant to frost damage and breakage due to freezing.

Why do we use slate roof?

Slate is very resistant to fire, able to withstand higher temperatures than many metals can. It’s great for enduring severe temperature changes, which is why it makes an ideal choice for the likes of roofs and floors. It’s why it also makes a great choice for the kitchen, due to its resistance to heat and burning.

What size is counter batten?

Counter battens installed with rigid insulation material should be a minimum of 38 by 38mm fixed through the insulation into the structure below with helical fixings.

How much is a slate roof UK?

The cost per m2 of a slate roof can vary, but you can expect to pay somewhere in the region of £40 to £60 per m2. There are cheaper alternatives out there, such as importing Spanish slate for your roof. This costs on average around £25 to £30 per m2.

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Roofs and roofing