No 3 Greenpark, Orwell Road, Churchtown, Dublin 14

The Client requested the complete refurbishment and renovation

of this 3,600 ft2 1930’s house as well as new extension to the rear

and new porch to front. South Dublin Construction was the main

contractor and PSCS. The main aim was to achieve maximum

thermal efficiency using modern techniques. The main energy

efficient techniques utilised were:

Weber Systems External fabric insulation with 120mm polystyrene

mechanically fixed to walls with the replaced windows moved

forward to the back of the back of the insulation board to avoid

cold bridging. The finish on the insulation is a coloured resin

compound requiring no maintenance. Various features were

achieved on the exterior e.g. raised panel picture frame details

around windows, attached columns at porch and plinth detail. A U

value of 0.25W/m2K was achieved.                        

Existing single windows were replaced (and some new added)

with thermally efficient double glazed argon filled timber windows

by Rationel Vinduer Ltd. with a U Value of 1.30W/m2K to

1.50W/m2K.                                                                                                                         

No 3 Orwell Road, Churchtown, D14.

Viessmann Vitosol flat plate solar panels of 6m2 were added to

the south west facing roof at rear to supplement hot water

requirements.

A 90% efficient Viessmann Vitodens 200 gas boiler was installed

5 The installation of whole house heat recovery system by Xpelair

with heat exchanger efficiency of 92%

The existing suspended ground floor was removed and replaced

with insulation and wet system underfloor heating with self

levelling screed over. This has achieved a U Value of 0.15W/m2K

Full zoned controls of heating to living areas and bedrooms with

full thermostatic control.

The combination of the above improvements as well as efficient

new build elements resulted in a Building Energy Rating of the old

hose of a G being improved to a B1. Estimated cost saving per

annum in heating and electricity costs would be €3,500 per

annum. The successful outcome on this project can be attributed

to a detailed Mechanical and Electrical specification at tender

stage as well as architects frozen design from an early

stage of construction once works were opened up.

                                              

South Dublin Construction Ltd.  17 Adelaide Road, Dublin 2.  Tel: 01 4782322  -  Fax: 01 4755983.  E-Mail: info@sdcltd.ie