These things will affect the timing cost and overall running of your project.
Flat roof u values building regulations.
These are expressed as a u value which needs to be achieved.
Building regulations standards and u values.
A lower u value indicates better insulation properties hence u value requirements usually specify a maximum value.
To comply with part l of the building regulations 2010 all roofs to rooms except those in unheated buildings should be thermally insulated to a maximum u value of of 0 18 w m k.
The target u value for flat roofs on existing buildings other than dwellings are shown in table 4 below.
Insulation for walls including cavity walls solid walls and timber or steel framed walls.
The lower the u value the more insulation there is in a building element e g a floor ceiling or wall.
Therefore the less heatloss.
Insulation for flat roofs pitched roofs and balconies and terraces.
U values are important because there are certain standards according to the building.
Make sure your comply with flat roof building regulations.
The required u value will depend on the location of the project england scotland or wales type of building domestic or non domestic and the application floor wall or roof.
Sometimes the excitement of starting a new construction project or building venture can lead you to forget about the finer details such as planning permission and local building regulations.
Get a u value calculation from our free online u value calculator or our technical department.
Consequently the higher the u value the more heatloss you have in the home.
The tables below show the suggested u values in england wales and scotland.