The basic cold roof construction consists of rafters set at up to 600mm centres underlay laid horizontally over the rafters with a slight drape between each rafter and tile.
Low pitched slate roof construction.
This pitch might be as low as 1 12.
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Slate is also an extremely elegant option.
It was fashionable for modern style homes built in the 1960s to have little pitch just a barely negligible slope to help drain water.
Slate is one of the most expensive options and can cost 600 1 500 per square or more.
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Higher exposure or different sized slates necessitated a greater roof pitch of 22 5 or more.
Traditional roofing details stand the test of time and are fine for the majority of situations.
Conventional low pitch slate roofs are recommended down to a minimum of 20 in areas of sheltered or moderate exposure providing a 500x300mm slate is used and a headlap of 115mm.
However at a low roof pitch components of a roof system may be working at the limit of their capabilities meaning more chance of failure.
A typical low slope metal roof has at least 25 recycled content and at the end of its long useful life is 100 recyclable.
Slate is also very difficult to install and you should find an experienced roofing contractor for.
First of all the cost for a low pitched roof is reduced because there are fewer materials used in its construction.
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Visually this roof appears flat.
Not only can low slope metal roofing contribute to the bottom line it can also contribute to leed credits which are awarded to buildings that use high recycled content and other green construction materials.
Cushions the slates and reduces breakage.
But the taller profiles like standing seam and pbr shown below can be installed on roofs with as low as 1 4 or 1 2 in 12 pitch.
Their fasteners are either concealed or screwed at the top of a ridge which makes them less likely to leak.
Eliminates the angle of creep and allows slates to be laid on a roof with a pitch as low as 12 degrees.
500mm long 100 per box 600mm long 100 per box 3mtr long 10 lengths per pack.
This leads to lower associated labour costs due to there being less time spent actually installing it.
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I e water leakage under extreme weather conditions.
Slate stone roofing is the longest lasting material available and can last over 100 years with a proper installation.
Traditional english roof construction practices have served us well for hundreds of years simple compared to some other countries but effective nevertheless.
