In most instances 35 will be the minimum pitch for plain concrete tiles which is another reason why the material is the preferred choice for those who use them regularly.
Minimum pitch for tiled roof uk.
Concrete is long lasting with a minimum lifespan of 50 years depending on climate.
Clay single camber plain tiles can pitch down to 30 manufacturer dependant although the vast majority available have a limit of 35.
As aforementioned there is no standard pitch of a roof.
But the most commonly used pitches range between 4 12 and 9 12.
The irc recommends a minimum pitch of 2 5 12 for these materials.
There are however some instances when the slope adopted can go below the recommended minimum.
It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.
How do you calculate the slope of a roof.
Choosing the right pitch.
The ondutile system manufactured by onduline building products ltd allows plain double lap tiles to be laid to roof pitches as low as 22 5 and is covered by british board of agrement certification details are available from the onduline website https onduline co uk products ondutile.
Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off.
Design considerations11 code considerations 12 standards 12 bushfire attack levels bal 12 wind forces 12 terrain categories 13 basic wind regions 14 fixing tile roofs in cyclonic regions 15 minimum roof pitch 15 maximum rafter lengths 15 maximum rafter lengths no sarking 15 sarking 16 insulation 16 ventilation 16.
Clay tiles are colorfast which means their tints improve rather than fade over time.
Deciding on the correct roof pitch for your home very much depends on the style of house you are building or renovating and to a lesser extent your local area.
11 august 2015 traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15.
The minimum pitch for each product can be found in the table below and in the product brochure or within the products pages some tiles and slates incorporate design features allowing them to be laid at a low minimum pitch.
You write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run.
Minimum pitch for tiled roof just like with the other roofing materials manufactures will always give a recommendation for the minimum pitch for tiled roofs.
35 is considered to be the minimum for slate and clay but if you do need to go below this interlocking concrete tiles are the best option.
To enable compliance with the requirements of the building regulations to be demonstrated full details of the new roof will be needed including.
