Title

Answer format (text/multiple choice etc.

Any clear logic around what answers would mean viable and what would be complex or practical.

Is there a cavity wall construction?

Yes / No

Yes – CWI may be feasible

No – CWI not possible

Have the cavities been filled previously?

Yes / No – if Yes, when and what material (if known)

Yes – has this been effective? If not, will extraction be necessary before installation of new?

No – CWI may be feasible

Does the resident have an objection to the installation of CWI?

Yes / No

If Yes, record conversation around why

Yes – CWI not an option (resident to be advised on process and potential benefits)

No – CWI may be feasible

Is it a listed building/conservation area?

Yes / No

Yes – further approvals may be required

No – no restriction on CWI