Further guidance and u value adjustments can be found in br 443.
Flat roof u value scotland.
These can be supported with a detailed report.
For more information see our articles and how to videos below.
Where not exempt a conservatory heated or unheated should be built to the same maximum u values as any other new work as listed in columns b and c of the table in clause 6 2 9 with the exception that glazing and framing elements forming the walls or roof of a conservatory are unlimited in area and should have a maximum area weighted.
Amendments to the building regulations and to the building standards system are made to ensure the aims of the system continue to be met and that the system meets the needs of the people of scotland.
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.
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U values of glazing elements forming the roof are usually quoted in the vertical plane and should therefore be adjusted allowing for the angle of the roof.
Epdm rubber roof covering 19mm ply 50mm ventilated air layer protect vp400 plus lr membrane sip at specified thickness protect vc foil ultra insulating a vcl 25mm service void 50mm gyproc thermaline super.
2006 conventions for u value calculations.
These are expressed as a u value which needs to be achieved.
For example scotland buildings will need a lower u value due to the colder weather than england.
Wales can get away with having a higher u value than england and scotland because it is typically less cold.
Flat epdm roof description.
The tables below show the suggested u values in england wales and scotland.
Check out our guide on what performance is required for the uk insulation building regulations.
The target u values for building elements within existing buildings other than dwellings are shown below in table 4.
U values are important because there are certain standards according to the building regulations and standards depending on location.
Monitoring and improving scottish building regulations.
The scottish technical handbook sets specific u values based upon the particular building element wall floor or roof.
U value has an inverse relationship to r value.
Table 4 from 3rd october 2011.
Reference table for u values u value is the coefficient of transmission i e the transmission of heat through the materials which compose the building s envelope or outer shell.
