Flat Roof Insulation U Values

The calculator can be used to calculate u values for floor wall pitched roof and flat roof insulation applications.

Flat roof insulation u values.

Column b is for other extensions upgraded existing thermal elements non exempt conservatories and conversion of unheated buildings. The lower the u value the slower the rate of heat flow and the better the insulating quality. Store u values in member project folders for future reference. Our insulation solutions for flat roof applications provide both excellent fire and acoustic performance in addition to high levels of thermal performance.

We provide u value calculations to show compliance with current building regulations standards and best practice. These can be supported with a detailed report. Ultimately selecting which product and value to use depends on many factors particularly thermal load. Free online u value calculator.

Ecotherm s u value calculator is simple to use easy to tweak and provides an instant u value. The saint gobain insulation uk online u value calculator covers a variety of different insulation applications. The saint gobain insulation uk u value calculator gives you instant access to calculating a proposed insulation thickness and product options or giving an indicative calculation on a proposed construction detail. Rocksilk krimpact flat roof slab thickness mm 150mm concrete 40mm screed 13mm plaster.

Typical u values using rocksilk krimpact flat roof slab with single ply membrane. Column a is for extensions where the existing dwelling s walls and roof u values are worse than 0 70 w m k in the walls and worse than 0 25 w m k in the ceiling. Providing you with instant calculations all day everyday with step by step options and hints and tips along the way the no jargon u value calculator takes you through your construction build up until each element is included. Easy to access calculations.

Our u value calculator is a free online tool which will help calculate the required thickness of insulation to achieve the desired u value. A u value of 0 55 w m k is used for cavity insulation and 0 30 w m k for internal or external wall insulation. The easiest way of getting a u value calculation is by using our free online u value calculator. For more information see our articles and how to videos below.

Specify your desired u value before immediately calculating the required insulation thickness and product selection.