Entertainment

Extended Facade

In order to accommodate flat diversity and a range of occupancy models - a spatial upgrade was needed to provide the extra space. The intervention employs a south facade extension to create winter gardens. Achieved through a lightweight concrete column and waffle slab structure pinned back to the existing frame. The upgrade is multifaceted and serves to provide the extra space needed for diversity whilst also upgrading the light conditions and solar gain in the adjacent flats and accessing the view across the city. The design move is a facelift for the existing building and because of the prominence of the blocks - a facelift for Dundee.

C

C

1. Removal of existing external render 2. Retain, repair and replace external insulation 3. New breather membrane 4. New aluminium frame for Rainscreen cladding - bolted to existing blockwork 5. Kingspan rainscreen panelling 6. Sealed existing balconies 6

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Building Performance

The existing building performance of the Hilltown Multi’s is sub-standard, poor-quality construction has led to a high concentration of damp and mould. This has directly impacted the health of residents and the leaky walls have poor heat retention, leading to notable levels of fuel poverty.

This intervention has sought to combat these underlying issues through an environmental design of a new skin, which increases the thermal efficiency on the west, north and east walls with the addition of winter gardens on the south facade which offer great for solar gain. The project has employed efficiency software to model these alterations through parabolic design, testing the daylight levels, thermal comfort, and air tightness.

The design removes the existing mould ridden external render and installs a new rainscreen system which aims to retain & repair the existing external insulation – allowing the walls to breathe mitigating the future build-up of mould and damp whilst improving the heat retention and thermal efficiency of walls. This coupled with triple glazed windows and sealing of existing external balconies & converting them to winter gardens, ultimately improves the airtightness of the flats and provides a reduction to the requirement to heat - mitigating the levels of fuel poverty within the blocks.

The existing flats (one bed) sat between 8-12 degrees for 18 hours on average daily without the use of an active heating system. The modelled flats after intervention (one bed) improved the thermal comfort to 18-22 degrees for at least 18 hours per day without an active heating system. This ultimately reduces the requirement to heat and thus reduces cost and mitigates fuel poverty.

North Facade Model Part Section C-C 1:50

Wall Detail 1:10