Flat Roof Falls Building Regulations

In summary the following definitions would apply to flat roof designs for rainwater drainage.

Flat roof falls building regulations.

In most situations this work will need building regulations approval. Falls on a flat roof with a concrete deck are either provided within the structural concrete itself or created within the screed which is laid over the concrete deck as for in situ cast concrete slab. It is a requirement of building regulation part h that adequate provision is made for rainwater to be carried from the roof of the building. There must be a slope of 1 80.

For definition purposes bs 6229 defines a flat roof as having a pitch less than 10 to the horizontal. Protecting roofing workers 7 purpose and scope of this guide falls are the leading cause of death in the construction industry accounting for over 3 500 fatalities between 2003 and 2013. In my opinion the latest guidelines are more streamlined and easier to understand which can only be a good thing the guidelines are vital to successful flat roofing martin added. Code of practice bs 8217 2005 reinforced bitumen membranes for roofing.

Part h of the building regulations regarding drainage state that water should drain to one or two edges. Not complying with part h of the building regulations or with the relevant british standards for flat roofing or flat roof drainage. Roofers encounter many hazards on the job. Some repairs to flats roofs will not require an application for approval under the building regulations.

A qualified roofing contractor will be able to advise on this but here are some of the main guidelines. Minimum finished fall required according to bs6229 is 1 80. Code of practice and nhbc standards. Flat roof this usually consists of felting which has a slight fall to allow rain water to drain off.

After a period of time the roof on existing buildings will need to be replaced. For further information contact the building regulations division. To enable compliance with the requirements of the building regulations to be demonstrated full details of the new roof will be needed including materials and their dimensions and performance properties. The 2003 version really was an old standard therefore the 2018 code brings it into line with the lat est building regulations and other codes of practice.

According to bs 6229 bs 8217 flat roofs should be designed with minimum falls of 1 40 to ensure a finished fall of 1 80 can be achieved allowing for any inaccuracies in the. Roof needs to achieve an external fire rating vapour barriers should be used flat roofs should be anchored to walls to prevent uplift flat roofs should be laid to falls flat roofs require regular maintenance. The design of falls is covered by bs 6229 2003 flat roofs with continuously supported coverings. Defined as a flat roof with a minimum finished fall of 1 80.