Floor Slab U Value Calculator

Depending on the use of the building the slab can then be finished ready for use or receive a screed suitable for a floor finish.

Floor slab u value calculator. Follow us on social to keep in touch with our latest tweets posts and information about eps and the insulation industry. U value requirement semi glazed doors 1 2 w m k. A reasonable r value for a normal concrete slab can be estimated using an r value the thermal resistance per inch of thickness between 0 1 and 0 2 and multiplying it times the slab thickness. Recent changes to the building regulations have reduced the stipulated u value for floors from 0 45 to 0 25 w m k.

U value requirement roof 0 13 w m k. The formula for calculation of a ground floor u value is given in cibse guide a3 and is very complicated. The u value calculator covers all the main ways of building walls flat roofs pitched roofs and floors using kingspan insulation products. This simple u value calculator can help you quickly check your designs or plans to see if they are likely to achieve bs en iso 6946 2017 compliance.

Calculation of thermal transmittances. U value requirement floor 0 13 w m k. However the following expression can be used to compute r this equation is provided by astm c 168. Calculating the inverse of that 1 r would give you a u factor in the range of 1 67 to 0 83.

Sign up to jablite updates. U value requirement windows whole window u value 1 4 w m k. U value calculator version 3 70. A reasonable r value for a normal concrete slab can be estimated using an r value the thermal resistance per inch of thickness between 0 1 and 0 2 and multiplying it times the slab thickness.

There are a few good u value calculators online that if you are short on time are worth. U value requirement opaque doors 1 0 w m k. A simplified method of calculating the u value of an uninsulated floor has been described in bre information paper ip 3 90. A useful tool for designers architects and the general public to quickly calculate the u values of different elements within a building.

If the insulation is going below the slab the damp proof membrane dpm is laid next followed by the insulation a polythene separating layer and the concrete slab. Building width m building length m building area m2 building perimeter m.