You might decide that you want to choose your heat source technology based on project-specific factors, like budget, preference or simply the space you have available. If this is the case, one route to approved document l (adl) compliance, would be to prioritise the reliability and longevity of your fabric, by specifying higher efficiency insulation.
This approach could be particularly relevant to bespoke builds, as it allows more flexibility to select the heat source technology that best suits your design.
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.