Fabricators
Calculation
Thermal Efficiency & Accurate u-Value Calculations
Accurate u-Value calculations of fenestration are a must if the correct whole building method is used. L1 & L2 legislation does allow standard window sizes and air gap methods of calculation; however this is not sufficient to accurately trade off elements of the building. Comar has the technical ability to offer this service to architects and specifiers, which means that detailed information can be supplied to building regulation departments in Local Authorities.
In order for a systems company to provide this information to an interested party the aluminium system must be put through a hot-box test or software which specifically calculates the thermal transmittance of the profile.
The BRE calculator uses this information to accurately calculate u-Values for every size and configuration of the Comar range.
- u-Values.
- u-Value Calculation using BRE EN ISO 10077-1 method of calculation.
- Wind Loading Calculations.
Comar's Technical Department will offer project-by-project deflection loads for it's aluminium systems. This can be used to specifiy specific mullions and transoms for the envelope. The importance of this can be seen when tenders are returned: some quotes may differ but they are not using heavy-duty profiles that will be required for some spans. This may increase the deflection levels on the curtain wall, resulting in a poor installation.
Wind Loading calculations can be obtained using the latest legislative method of calculation. Comar recommend that you consult their technical department or specification consultants at the early design phase of any project.
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