Add-on · Repointing

Heritage Lime Repointing Pack

For repointing traditional solid masonry (stone and brick, mainly pre-1919) with lime mortar in Scotland, Wales and England. Whether to repoint at all, what the existing mortar is, which binder, aggregate and mix to test, how to rake out, place, finish, cure and protect, and what goes wrong. Includes a stone and exposure binder matrix covering NHL 2, NHL 3.5, NHL 5, natural hydraulic lime (FL), lime putty and hot-mixed lime. It adds the lime-specific records on top of Phase 1 and a Phase 2-style site setup.

£149no VAT

£99 as an add-on with the Phase 2 Site Pack.

Get invoice

Natural Stone Craft is a trading name of Rory J Dench, sole trader, 5a Gartness Mill Cottages, Gartness, Balfron Station, Glasgow G63 0NJ.

Natural_Stone_Craft_Heritage_Lime_Repointing_Pack_V1.0.zip

Laser-cleaned limestone against remaining urban soiling, a sharp vertical boundary.

Who this is for

Owners, architects, conservators, councils and contractors repointing traditional solid masonry with lime mortar.

V1.0 · Reviewed in-house · Not conservator-approved. Not reviewed or approved by an accredited conservator or heritage body, a lime producer or supplier, any planning authority or any regulator. Documentation and specification templates only. Not legal, conservation, structural or safety advice.

Key feature: a stone and exposure binder matrix (NHL 2, 3.5 and 5, FL, putty, hot-mixed) that gives starting points to test, not a specification.

Works best with Phase 1 (Local Rules, Handbook) and Phase 2 (site day papers) when laser cleaning is on the same job; this add-on stands alone for lime work. It does not replace mortar analysis, test panels or the producer's current data sheet.

What is in the ZIP

READ FIRST, issue sheet, README and LICENCE
Binder guide: BS EN 459-1 classes, putty, hot-mixed, NHL, FL, HL (PDF)
Binder selection matrix: stone x exposure x binder (PDF + editable Excel)
Aggregate, mix design and pozzolans (PDF)
Repointing RAMS and method statement (Word + PDF)
Raking out, tools and joint profiles (PDF)
Curing, protection and the seasonal window (PDF)
Failure modes and diagnosis (PDF)
Mortar analysis and sampling record (Word + PDF)
Test panel record (Word + PDF)
Mix log (Word + PDF)
Consent and specification prompts (Word + PDF)
Client handover and maintenance sheet (Word + PDF)
Asbestos gate (Word + PDF)
Producer data cross-check: Saint-Astier, Otterbein, Masons Mortar (PDF)

What it is not

Not a specification for your wall. The matrix gives starting points to test; the binder, aggregate and mix are decided by the existing mortar, the masonry, the exposure and test panels. No prices. Products are named only where a producer's published data is compared; naming is not endorsement. Northern Ireland is not covered. Not conservator-approved.

Saint-Astier, Otterbein (CALCIDUR, HYDRADUR) and Masons Mortar are trade marks or trading names of their respective owners. They are named for identification only, to compare published data. Natural Stone Craft is not affiliated with, sponsored or endorsed by any of them, and none has reviewed this pack. Product information is summarised from each maker's or supplier's published data as at the date shown beside it; data changes, so read the current data sheet and safety data sheet before use. No logos or product images are used.