Within heritage buildings there are a number of issues to be considered in designing the ASD system such as aesthetics, high ceilings and stratification.

ASD can be utilised within heritage buildings to provide discreet air sampling, not visible to normal occupancy.

The design and décor of the room will often determine the positioning of the air-sampling pipe network. Concealing the sampling pipe within the fabric of the building can provide discreet smoke detection. Small-bore tubes can be connected to the main pipe network to provide discrete detection at the required location (i.e. blending in with paintings, forming part of ceiling sculptures or cornice and chandeliers).

In large volume application such as cathedrals, it is recommended that the ASD systems are installed at high levels and at intermediate levels to overcome stratification (refer to FIA CoP ASD clauses 8.3.2 and 8.3.4).

The ASD should be installed to the requirements of national Standards with special consideration being given to the recording of any variations necessary for the practical positioning of the sampling holes.