Roof Lantern Building Regulations

To follow the building regulations properly.

Roof lantern building regulations.

Energy efficiency is usually a big concern when it comes to these kinds of projects and part l of the building regulations requires you to improve thermal performance as this is known to be a common issue with flat roofs. This is why u value calculations will invariably be required when establishing an appropriate design for a new extension and more specifically the introduction of a roof lantern into a new or existing building. The amount of heat that can pass through a window or door is measured in u values and building regulations may specify a specific u value that your roof lantern cannot exceed. Approval under the building regulations will generally be needed for the installation of a new rooflight for the following reasons.

The removal or alteration to any roof elements could affect how the roof works and cause movement to occur. When performing work on any roof care should be taken to ensure the roof will continue to perform effectively and without any movement. With the roof being so old and not meeting current building regs the new flat roof will be taller and with the height of the roof lantern will take it over the 150mm height allowance for permitted development. The thermal performance together with carbon usage is critical when looking at the overall environmental performance of a building.

To install a rooflight the roof structure will generally need to be altered to create the opening. 12 march 2019. Approval under the building regulations will generally be needed for the installation of a new rooflight for the following reasons. For roof lanterns you can obtain a permitted development confirmation.

To install a rooflight the roof structure will generally need to be altered to create the opening. For more information about the heat loss performance of our doors windows and roof lanterns visit here. The planning portal then conversely goes on to explain that approval under the building regulations will generally be needed for the installation of a new roof light roof lantern or skylight due to the following reasons. The team will be exhibiting the brand s full range of bsi kitemarked thermally broken skylights and roof lanterns from stand b150 at the excel london from 4th 12th may 2019.

Movement could cause cracks to occur in the walls and possibly the eventual collapse of the roof. Installing a roof light generally requires alteration to the roof structure in order to create the opening. This isn t required for a project to start but it s written proof from your local council that your project falls within permitted guidelines giving you peace of mind and preventing issues further down the line.