Ask why, on any clause.
Every clause comes with the reasoning: what the standard asks for, what the project documents already say, and what is still open. No tab hunting, no PDF trawling.
Standards & Guidance
A reference library tells you what a standard says. Avoice tells you what to know, what to consider and what you’ve left out, on this building, this system, this clause. A second brain on the project.
Book a demoEvery clause comes with the reasoning: what the standard asks for, what the project documents already say, and what is still open. No tab hunting, no PDF trawling.
Drawings, schedules and consultant reports go in. What comes back is about this building and this system, not the general case.
Open items are named with the decision behind them, who owns it, and what it affects further down the spec.
Every section comes with guidance drawn from the drawings, schedules and reports already on the job. Not a library to search through, the specific thing you need to know before you write it.
Each section records what it was written from: the standard and its edition, the product data, the drawing revision. When a standard is superseded or a drawing is reissued, you know exactly which sections it touched.
Questions
No. Every empty field ends up in one of three states:
From the product. Filled from the manufacturer's published data, with the source and a note to double-check shown on hover.
Recommended. A value based on the Building Regulations, British Standards or trade practice, with the reasoning and other options you could pick.
TBC. It genuinely can't be determined from what you've given it, and the reason is stated.
On purpose. A TBC means your drawings and reports don't resolve that item yet. It's better to see it now than to find it on site. Open TBCs collect in a per-project TBC register that you clear before issue.
Read the guide: TBCs in specifications at tender
From the same places an experienced spec writer draws on: the BS 8000 workmanship series and other codes of practice, the Building Regulations and Approved Documents, and manufacturer installation instructions where they're published.
Where a clause rests on general good practice rather than project information, the clause says so, so you know what to check.