You might decide that for your project, it makes sense to change very little about your fabric and heating specifications. If that’s the case, there are other ways you can achieve compliance. For example, using a technology such as rooftop photovoltaic panels can help to increase energy-efficiency.
This approach may be particularly relevant if your development is happening within the transition period for Approved Document L (ADL), as it offers a potential route to compliance, without the need for large-scale redesigns.
Below is an example ADL-compliant recipe*, showing one way this approach could be applied:
5 BED DETACHED, 3 WET ROOMS, 192m², 5 OCCUPANTS
Fabric | Openings | Heating | Ventilation | Renewables |
|---|---|---|---|---|
ROOF INSULATION | WINDOWS | HEATING TYPE | AIR PERMEABILITY | PHOTOVOLTAIC PANELS |
500mm Loft Roll 44 | Double Glazed | Gas + Cylinder - | 1.00 2.25 2.5 4.00 | None |
EXTERNAL WALLS | DOORS | HEATING CONTROLS | VENTILATION SYSTEM | WASTE WATER HEAT RECOVERY |
100mm Supafil® 34 | 1.90W/m²K | Time & Temperature Zone Control | System 1- | None |
PARTY WALL INSULATION | ||||
None | ||||
FLOOR INSULATION | ||||
0.11W/m²K | ||||
LINTELS | ||||
Thermally broken |
*Example recipes have been produced prior to the release of the latest SAP software and are intended for illustrative purposes only. These will be updated when the new software is released.