A family of components designed as one roof.
The strength of the Börner approach was not one impressive membrane in isolation. It was the ability to configure a coherent assembly around the existing roof, combustible-substrate risk, vapour strategy, insulation, installation method and required finish.
How the layers worked together
Cap sheets, underlays, vapour control, primers and adhesives were considered together rather than selected as unrelated products.
Controlled flame strategy
Fully self-adhesive and torch-safe hybrid routes allowed the method to respond to the deck and combustible interfaces.
Reinforced SBS membranes
Polymer-modified bitumen, reinforced carriers and graphite fire-protection technology in selected cap sheets supported a robust system route.
Multiple installation routes
Torch application, self-adhesion and selected adhesive methods gave the system flexibility across new work and refurbishment.
Different roofs needed different Börner build-ups.
These are the main historical routes. The original membrane combination was selected around the roof construction and project requirements.
REFURBISHMENT / OVERLAY
Universal single layer
A direct refurbishment route using POLY-ELAST RAPID O over suitable existing asphalt or bituminous waterproofing. The membrane combined reinforced waterproofing with underside channels intended to help equalise vapour pressure; ELMO-FLEX 4K formed a parallel universal single-layer route.
FLAME-FREE WARM ROOF
Fully self-adhesive
A completely cold-applied two-layer route. Self-adhesive vapour control, underlay and cap sheet created a coherent warm-roof build-up without routine torch application.
CONTROLLED-FLAME BUILD-UP
Torch-safe hybrid
A self-adhesive vapour control layer and underlay kept flame away from the deck and insulation, while a torch-applied POLY-ELAST cap sheet completed the exposed waterproofing layer.
WARM ROOF / DETAIL-LED
Higher-specification hybrid
A component-led hybrid route combining self-adhesive lower layers with a reinforced torch-on cap sheet. Perimeters, penetrations and combustible interfaces still required project-specific detailing.
A self-adhesive cap-sheet option could be introduced at defined perimeter or flame-sensitive zones.
Indicative historic sequences only. Deck, attachment, insulation, falls, drainage, wind loading, fire route and detailing still formed part of the approved project build-up.
The membrane followed the roof—not the other way around.
An early system decision began by identifying the existing construction and the safest compatible route.
- 01EXISTING WATERPROOFINGCould a compatible single-layer overlay retain the serviceable roof?
Condition, moisture, adhesion and existing detailing governed whether refurbishment was technically sensible.
- 02COMBUSTIBLE RISKWas a fully flame-free or torch-safe hybrid sequence required?
The deck, vapour control, insulation and interfaces determined where direct flame could and could not be used.
- 03MOISTURE STRATEGYWas vapour control continuous and compatible with the warm-roof design?
The VCL was a performance layer, with laps, edges and penetrations requiring the same care as the cap sheet.
- 04COMPLETE ASSEMBLYDid the exact primer, adhesive, insulation and membrane combination belong together?
Performance and fire claims applied to defined assemblies—not to a cap sheet installed over an arbitrary build-up.
The products had distinct roles.
This map records the principal Börner membranes and ancillaries associated with the archived system range. Final codes and technical values will be checked against the original controlled TDS library before any deeper product-level publication.
The exposed waterproofing layer, selected around system route, reinforcement, application method, substrate risk and required performance.
The lower waterproofing layer within two-layer systems, with self-adhesive or torch-applied options matched to the roof build-up.
Air and vapour control below the insulation. Continuity at laps, penetrations and perimeters was as important as the membrane selection.
Preparation and bonding components chosen for the substrate, membrane route, insulation and site conditions—not treated as interchangeable accessories.
A specialist root-resistant membrane route where the complete roof or landscape build-up required that function.
Approximately 58,000 m² installed across Ireland.
The Irish system record covered fully self-adhesive, torch-safe hybrid and single-layer Börner roofing systems across education, commercial and healthcare applications.
Cold-applied warm-roof construction.
Controlled-flame system sequencing.
Assessment-led refurbishment.
The area is a rounded historic estimate. Project, client and contractor names are not published.
Approximately 2,500 m² of old torch-on roofing refurbished as one coordinated project.
The work combined selective plywood and OSB deck replacement, corrected local falls, replacement outlets, additional ventilation shafts and TEK Bitumen Wedges with GEBÖRTOL V Rapid, MONOPLEX SBS PV 180 S4 and POLY-ELAST PV 180 S4.
Read the project record →A 630 m² torch-safe warm-roof system across apartment roofs and terraces.
The project used GEBÖRTOL V Rapid primer, DACO-KSD-B vapour control, 100 mm PIR, TEK Bitumen Wedges, DACO-KSU underlay and POLY-ELAST PV180 S4 cap sheet across the main roofs and terrace areas, with corner outlets integrated into the waterproofing details. No insulation adhesive is attributed without a confirmed project record.
Read the project record →Historic performance is not a current specification.
Historic system literature referenced BBA certificate 21/5879, BROOF(t4) fire performance and a 35+ year assessed durability route for defined assemblies. Those statements are preserved here only as part of the technical record.
The Börner range shown is not current product availability. No historic approval, fire classification, durability statement or product code should be relied upon for a new project without checking current certificate status, the exact tested build-up, current TDS, availability and project conditions.
HISTORICAL TECHNICAL ARCHIVE
Documents & material data
12 material data sheets, a system certificate and the product reference catalogue. Original English PDFs from the historical Börner range.
SYSTEM CERTIFICATE · PDF
BBA 21/5879 — Torch-Safe System
Issue 2021-04-06
PDF upload pendingPRODUCT CATALOGUE · PDF
Börner product reference catalogue
Issue GD 9537-EN 0914/0914
PDF upload pendingThe BBA certificate is an archived issue. Check current validity and the exact system specification before use.
Material data sheets
TDS · ENGLISH · 2019-09
DACO-KSO — Irish supply variant
Self-adhesive SBS cap sheet
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
POLY-ELAST PV 180 S4
Torch-on SBS cap sheet
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
SK BIT 105 PV ROOT PROTECTION
Torch-on root-resistant waterproofing sheet
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-08
POLY-ELAST RAPID O
Torch-on single-layer overlay membrane
PDF upload pendingMaterial details →TDS · ENGLISH · 2019-01
TN TEK Bitumen Wedge
Flexible bituminous angle fillet
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
INTER-STICK SK 3 EXTRA
Self-adhesive SBS underlay, sanded top
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
DACO-KSU+
Self-adhesive SBS underlay with Safe-Seal laps
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
MONOPLEX SBS PV 180 S4
Torch-on SBS underlay
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
MULTIPLEX SUPER AL
Torch-on aluminium-lined vapour control layer
PDF upload pendingMaterial details →TDS · ENGLISH · 2020-05
DACO-KSD-B
Self-adhesive SBS vapour control layer
PDF upload pendingMaterial details →This archive is based on system training, professional experience and documented project records. It is not a current sales offer or project specification. Original TDS documents and their recorded revisions are available in the document archive above.