Sava EDGE.

Welcome to Sava EDGE; a searchable, online collection of practical and technical information and other resources for residential property professionals

February 10th, 2018

RdSAP – A Potted History (1)

SAP was introduced for the first time in 1995, as the basis of a new approach to Building Regulations for new homes. It was subsequently updated in 1998, 2001, 2005, 2009 and 2012…

February 10th, 2018

Primary Energy Use vs Heat Demand in the Home

Question: Why does the current primary energy use multiplied by the total floor area not match the energy used in the home’s heat demand? Answer: the home’s heat demand, i.e. the space heating demand of…

February 10th, 2018

Photography Framing

Understanding the importance of framing when taking photos People often put photographs into frames as a way of displaying and drawing attention to their favourite pictures; however, there is another type of framing…

February 10th, 2018

Part L1B – Extensions

Summary of Methods to Demonstrate Compliance for Extensions Reference method Area weighted average U-value method Whole dwelling calculation method

February 10th, 2018

Part L1B – Conversions

Summary of Methods to Demonstrate Compliance for Conversions Reference method SAP calculation

February 10th, 2018

Open Fireplaces and Chimneys

The number of chimneys/fireplaces affects the ventilation rate assumed in the SAP calculation and all open chimneys/fireplaces should be included in the open fireplace count .  ‘No of open fireplaces’ is a straight…

February 10th, 2018

Older PVCu Replacement Windows

Remember when PVC replacement windows became all the rage? Along with stick-on stone cladding, double-glazed replacement windows quickly became the ‘must have’ feature for home owners in the late 1970s and the early…

January 17th, 2018

Garage Conversions

Is the residential domestic garage a thing of the past? Yes, according to an article on the ‘This is Money’ website (www.thisismoney.co.uk, 13 November 2015). Reporting the results of a survey carried out by…