Existing roof waterproofing solutions

When refurbishing membrane roofs, Allco JM TPO is the best membrane choice. 

The Allco ALLRITE Recover Roof has been designed and engineered to provide long term durability, weather tightness, and improved thermal & acoustic performance for existing roofs. 

Because of the many different possible variations of existing roofs and membrane build ups, we recommend you contact your Allco account manager or email tech@allco.co.nz for advice.

Please refer to our CAD Library for typical membrane details.

Product Manufacturer Description
TPO Membrane Johns Manville

A reinforced single-ply membrane offering superior UV resistance, weldability and long-term durability. Known for its flexibility and strength, it is ideal for low-slope roofs, decks, green roofs and water-collection systems.


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Warm Roof system Allco

Made for New Zealand’s climate, this slim, fully adhered warm roof system eliminates thermal bridging and is ideal for low-slope designs with a minimal build-up height. Supports TPO or torch-on membranes.


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Recover Roof system Allco

A re-roofing system using your existing metal roof as the base. Reuses the existing deck to improve watertightness, insulation and compliance. Suitable for occupied buildings needing a cost-effective, low-disruption retrofit.


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WR-010 Skylight Penetration - Upstand
Allco pdf0.22 MB
WR-009A Drip Edge - Metal Substrate
Allco pdf0.28 MB
WR-009 Drip Edge
Allco pdf0.27 MB
WR-008A Pipe Penetration - Metal Substrate
Allco pdf0.29 MB
WR-008 Pipe Penetration
Allco pdf0.29 MB
WR-007A Skylight Upstand - Metal Substrate
Allco pdf0.22 MB
WR-007 Skylight Upstand
Allco pdf0.21 MB
WR-006A Plant Fixing Plinth - Metal Substrate
Allco pdf0.30 MB
WR-006 Plant Fixing Plinth
Allco pdf0.23 MB
WR-005A Floating Deck - Metal Substrate
Allco pdf0.30 MB
WR-005 Floating Deck
Allco pdf0.30 MB
WR-004A Parapet Scupper Outlet - Metal Substrate
Allco pdf0.28 MB
WR-004 Parapet Scupper Outlet
Allco pdf0.21 MB
WR-003A Parapet Detail - Metal Substrate
Allco pdf0.21 MB
WR-003 Parapet Detail
Allco pdf0.21 MB
WR-002A Gutter Outlet - Metal Substrate
Allco pdf0.27 MB
WR-002 Gutter Outlet
Allco pdf0.26 MB
WR-001A Upstand Detail – Cladding Overlap - Metal Substrate
Allco pdf0.21 MB
WR-001 Upstand/Wall Cladding
Allco pdf0.20 MB
T-102 Green roof - Parapets - Paved area - ballast area - gr...
Johns Manville pdf0.11 MB
T-101 Green roof - Drainage outlet - Sump and paver perimete...
Johns Manville pdf0.16 MB
T-056 Kickout diverter
Johns Manville pdf0.18 MB
T-055 Kickout diverter
Johns Manville pdf0.15 MB
T-052 Upstand diagram - Internal corner
Johns Manville pdf0.07 MB
T-051 Upstand diagram - External corner
Johns Manville pdf0.07 MB
T-017 - Plantwork Fixing - EJOT
Johns Manville pdf0.09 MB
T-016 - Plantwork Fixing - Plinth options
Johns Manville pdf0.11 MB
T-015 - Balustrade Fixing or Roof Edge
Johns Manville pdf0.18 MB
T-014 Roof upstand - Skylight - Extract flue
Johns Manville pdf0.09 MB
T-013C Roof Penetrations - Vent
Johns Manville pdf0.17 MB
T-013A Roof Penetrations - Pourable pocket
Johns Manville pdf0.10 MB
T-013 Roof penetrations - Service pipe + vent
Johns Manville pdf0.07 MB
T-012E Proprietry sump with overflow
Johns Manville pdf0.10 MB
T-012D Scupper - RWH outlet
Johns Manville pdf0.07 MB
T-012C Gutter outlet - Parapet
Johns Manville pdf0.11 MB
T-012B Scupper - Overflow
Johns Manville pdf0.09 MB
T-012 Scupper - RWH outlet
Johns Manville pdf0.07 MB
T-011 Gutter outlet - Overflow
Johns Manville pdf0.21 MB
T-010 TPO lap to tanking membrane
Johns Manville pdf0.07 MB
T-009 Slab - Roof edge termination options
Johns Manville pdf0.08 MB
T-008 Drip edge to spouting options
Johns Manville pdf0.08 MB
T-007A Parapet - Saddle flashing
Johns Manville pdf0.10 MB
T-007 Parapet - Wall capping - Welded TPO flashing
Johns Manville pdf0.17 MB
T-005 Upstand termination options
Johns Manville pdf0.09 MB
T-004 Upstand detail - Gutter to pitched roof
Johns Manville pdf0.07 MB
T-003 Upstand detail - Transition to roofing
Johns Manville pdf0.08 MB
T-002A Upstand detail -Window sill - Non rebated
Johns Manville pdf0.31 MB
T-002 Upstand detail - Window sill - Rebated
Johns Manville pdf0.32 MB
T-001 Upstand detail - Cladding overlap
Johns Manville pdf0.07 MB
RC-004-Internal/External Gutter-Option 2
Allco pdf0.12 MB
RC-003-Internal/External Gutter-Option 1
Allco pdf0.10 MB
RC-002-Parapet
Allco pdf0.10 MB
RC-001-Upstand/Wall Cladding
Allco pdf0.11 MB
Document Type Brand Actions
JM Vapour Barrier SA - Safety Data Sheet
pdf0.14 MB
Technical Datasheet Johns Manville Preview Download
JM Vapour Barrier Product Sheet
pdf0.19 MB
Technical Datasheet Johns Manville Preview Download
JM TPO Membrane Cleaner - Safety Data Sheet
pdf0.23 MB
Technical Datasheet Johns Manville Preview Download
JM TPO Membrane Bonding Adhesive - Safety Data Sheet
pdf0.26 MB
Technical Datasheet Johns Manville Preview Download
JM TPO Membrane Adhesive - Safety Data Sheet
pdf0.17 MB
Technical Datasheet Johns Manville Preview Download
JM TPO Edge Sealant - Safety Data Sheet
pdf0.23 MB
Technical Datasheet Johns Manville Preview Download
JM TPO - Product Datasheet
pdf0.24 MB
Technical Datasheet Johns Manville Preview Download
JM Single Ply Primer - Safety Data Sheet
pdf0.25 MB
Technical Datasheet Johns Manville Preview Download
JM One-Part Pourable Sealer - Safety Data Sheet
pdf0.18 MB
Technical Datasheet Johns Manville Preview Download
Certificate of Analysis Potable Water
pdf1.01 MB
Technical Datasheet Johns Manville Preview Download
Allprep - Technical Data Sheet
pdf0.13 MB
Technical Datasheet Johns Manville Preview Download
Allco Single Ply LVOC Caulk - Safety Data Sheet
pdf0.19 MB
Technical Datasheet Johns Manville Preview Download
Allco Alltherm TPO - Compliance Documents
pdf37.46 MB
Product manual Johns Manville Preview Download
Casali - Material Safety Data Sheets
pdf0.14 MB
Technical Datasheet Casali Preview Download
Allco Alltherm Casali - Compliance Documents
pdf37.46 MB
Product manual Casali Preview Download

Above-ground applications

From a simple deck to a suspended carpark structure, we provide robust waterproofing solutions for every above-ground application.

Projects

Explore how our waterproofing systems perform across projects around the country.

Approved Applicators

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