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There are three pieces of software that need to be explained.

For the floor wall and roof, calculate the U value in accordance with EN ISO 6946:2007 and how the calculation is carried out can be viewed and checked in the tender section of the design calculator for each project. More ... Less ...

The Foresite calculators are unique because they present the designer with the structural material and insulation materials most suited to the method of construction, typical details and materials chosen when setting up in the input section of the calculator.

The designer chooses the performance level that they want to build to: the current regulations- the FEE or extreme fabric design, they then choose the insulation material to be used and the software will provide a depth of insulation most suited to the performance level chosen-the online U value calculators calculate the U value and it is used by the online SAP software to calculate the performance of the building.

The U value calculators are adaptable and new materials can be introduced immediately, the user can also choose their own depths of materials and the calculator will calculate the U value which is used by the online SAP software to calculate the performance of the building.

This is a unique piece of software on our cloud based system and is the holy grail of the design and construction of energy efficient buildings. The calculation of the thermal bridge is confusing and variations of 25% are not unusual in the calculation of the y factor, but individually calculated y factors will be necessary with the introduction of FEE and extreme fabric design. More ... Less ...

In the input section of the calculator the designer is asked what method of construction, typical details and the profile of the fabric envelope and the software determines the psi values to be used to calculate the y factor based on these decisions made by the user.

During the input process of the calculator the designer will be asked questions on the type of dwelling being designed and the software will present drawings explaining the dimensions that need to be measured for a particular project, the dimensions input are used by the software to calculate the y factor.

The software calculates the y factor in accordance with BRE IP 1/06 and all the psi values are either accredited or calculated to BR429 and how the calculation is carried out can be viewed and checked in the tender section of the design calculator for each project.

The software collates the design dimensions input in the input section of the design calculator and the design solutions made by the designer for each element of the Part L1A specification in the design section of the calculator and sends this information electronically to a cloud based approved design JPA SAP calculator, the software uses this information to calculate the performance of the dwelling and the interface sends the results back to our data base. More ... Less ...

Our data base will inform the user if the dwelling is compliant with the performance level required.

For the current regulations the software works out the DER and TER and if the DER is less than the TER measured in kg/m^{2}/yr. then compliance has been achieved by the design solutions input into the software.

For the FEE standard the software works out the Fabric Energy Efficiency of the dwelling and if the FEE standard for an apartment and mid terrace dwelling is less than 39kWh/m^{2}/yr. and for a semi-detached or detached dwelling is less than 46kWh/m^{2}/yr. then compliance has been achieved.

For the extreme fabric design the software works out the Fabric Energy Efficiency of the dwelling, Foresite have worked out our own standard for extreme fabric which is not official for an apartment and mid terrace dwelling is less than 30kWh/m^{2}/yr. and for an semi-detached or detached dwelling is less than 35kWh/m^{2}/yr. then compliance has been achieved.

The software also works out the allowable solutions, the online SAP software calculates the kgCo_{2}/m^{2}/yr over the zero target, if using the FEE specification it will be approximately 14kgCo_{2}/m^{2}/yr. for an 85m^{2} semi-detached building. The calculation works out the Co_{2} tonnage over 30 years an illustrative figure of £46.00 per tonne is used to work out the allowable solution or compensation, which is a one off payment made by the developer.

Example | ||||
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The kg/yr. * the area of building * 30 years | = | kgs over 30 years/100 | = | tonnage over 30 years. |

11 * 85m^{2} * 30 years | = | 29,700kgs | = | 29.7 tonnes over 30 years |

Allowable Solution = 29.7*£46.00/tonne = £1,328.50 |

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