Deals for developers and clients
The Building standards were updated in October 2015. This resulted in a higher specification being required in order to meet the standards detailed in section 6 of the domestic technical handbook.
These improvements have resulted in dwellings, being designed to post October 2015 standards, now requiring some form of low carbon/ energy generating equipment being included in the specification.
The cheapest and most straight forward means of complying with the energy standards is to include solar PV on the roof.
Woodend Safety and Sustainability can provide the said solar PV systems to meet the requirements of the building standards. however where we are selected to supply and fit the said PV systems for dwellings the following is included as part of the package.
Free SAP calculations. (usually £150.00)
Free EPC (usually £50.00)
Free Sustainability Certificate. (usually £20.00)
10% Off the warrant fee ,Where the calculations are carried out prior to warrant application. (usually costs £50.00 and will usually reduce the warrant fee by approximately £140.00 per dwelling)
Free Building Pressure test, Provision of Pressure test certification to building standards requirements. (usually £200.00)
MCS lodgement of PV system.
Total financial benefit of offer = £610.00 (In this scenario)
When using solar PV a traditional gas boiler can be used to heat the home and hot water. The insulation values can also be relaxed to the stated benchmark values. These two factors will also have a significant impact on the overall cost of the construction phase.
Savings for developers and clients
The total savings of the above services is in excess of £600.00.
Whilst we cannot promise the total savings realised in the above example will be to the value stated. However we will ensure the size of the Solar PV system to be fitted will be the smallest capable of satisfying the requirements of section 6 of the domestic technical handbook. Therefore maximising the savings this offer provides for the client.
Case study when not including Solar PV
Woodend Safety and Sustainability recently carried out work for a local council to provide the calculations for a number of social housing projects. The council preferred to avoid the use of solar PV in the original scenario as they did not believe Solar provided the best value for money for the proposed residents. When the design was completed the difference per dwelling in price was an additional cost of £3000.00 per dwelling where solar PV was not utilised.
Due to the number of dwellings involved by changing to solar PV in their design they realised a saving that was enough to construct a further three dwellings. The number of houses that was proposed to be constructed was just over 100.
Where solar PV is used the designer can include gas boilers and utilise insulation levels similar to that used prior to October 2015. Not using Solar PV will result in the inclusion of an air source/ ground source heat pump, possibly a whole house ventilation system. high spec insulation levels and triple glazed windows and very tight air permeability levels.
Solar PV is not the only solution to meeting the requirements of section 6 of the technical handbook, but it appears to be the most cost effective and straightforward solution at this time.
A typical Solar PV system to allow a mid terraced two bedroom dwelling to meet the requirements of section 6 of the technical handbook will cost £1600.00+ VAT. The savings detailed above in the "deals for developers section" are not included in this price.
Approved Certifier of Design (Domestic)
The Building Scotland (Regulations) 2004 allow for parts of the technical handbook to be certified by competent persons working in that area. Part 6 energy is an area of the technical handbook that has been identified as being suitable for this purpose. Persons having this section of the technical handbook certified are eligible for a 10% reduction in building warrant costs where the certification is carried out prior to the application for a building warrant.
Woodend Safety are deemed to be the said competent persons and are registered under RIAS (Royal institute of Architects in Scotland) to certify part 6 of the technical handbook (Domestic).
As the regulations changed in October 2015 this has created a significant challenge to designers in relation to confirming compliance with this section of the technical handbook. By certifying part 6 designers can relax in the knowledge this section of the warrant application has already been complied with. Where a building standards officer receives a certificate of design they do not review this aspect of the design as it already has been deemed to comply.