PET Spunbond Roofing Carriers
Orientation for polyester spunbond carriers used in roofing membranes: decisions before comparing, fabric specification and roll data, and trial sequence.
Buyer summary
- What it is
- Polyester spunbond fabrics that reinforce modified-bitumen roofing membranes. The carrier gives the sheet its tensile strength, tear resistance and dimensional behaviour.
- Main applications
- APP- and SBS-modified bitumen membranes for roofs, basements, balconies, terraces, tunnels and parking decks.
- Critical purchasing specifications
- Basis weight and tolerance (one maker quotes 150–300 g/m²)
- Width and roll length (one maker quotes widths of 1.0–3.2 m)
- Tensile, elongation and tear, with the test method
- Dimensional stability and heat shrinkage at coating temperature
- Binder or coating declaration
- Qualification considerations
- Carriers are qualified in the membrane process. Finished-sheet values depend on the bitumen, thickness and carrier together, and on the EN 13707 or national requirements that apply.
- First step
- Give the membrane type, the line's coating temperature and the specification the membrane must meet.
- How PAXOMER can assist
- Roofing carriers are qualified in the membrane process, not on a roll label. PAXOMER can help define basis weight, reinforcement, dimensional stability at coating temperature and the documentation your membrane line needs, identify spunbond producers with suitable grades, and coordinate trial rolls. Direct manufacturer discussions on widths, roll lengths and annual volumes can follow. Manufacturer identification, qualification support and pricing discussions depend on manufacturer confirmation, specifications, quantities and terms.
Detailed technical guidance, data tables, FAQs and technical references follow below.
Building-envelope and fire-performance decisions. Thermal, moisture and fire performance depend on the complete assembly and the code path that applies. They require qualified design review and documented evidence for that assembly; material data alone do not establish compliance.
General technical information published by PAXOMER Inc. to support preliminary material evaluation. It is compiled from the sources cited on this page and has not been independently reviewed or certified by a professional engineer, laboratory or certification body. Values marked typical, illustrative or requiring confirmation are not specifications. Confirm properties, standard editions, regulatory status and suitability for your specific application with the manufacturer and, where the use is regulated or safety-related, with a qualified professional or the relevant authority.
A roofing carrier is the reinforcing layer inside a bituminous waterproofing membrane. It carries the loads the bitumen cannot: tensile stress from wind, thermal movement and substrate movement, handling in manufacture and installation, and nail or fastener pull-through. Spunbond polyester (PET) nonwoven is one of the main carrier types in modified-bitumen (APP and SBS) sheets, alongside glass-fibre mat and composite carriers. Its practical features are elongation, tear resistance and a porous structure that bitumen impregnates, in return for higher cost than plain glass mat and a need to manage heat during bitumen processing and torching.
This page is general technical orientation for membrane makers, converters and buyers. It explains the carrier’s role, the properties that matter, how the figures in the sources should be read, and how to qualify a carrier. Basis weight, tensile and elongation figures vary by grade and test method, so the numbers below are examples from named sources and not typical values for PET spunbond as a class. PAXOMER does not state that it stocks, represents or has qualified any carrier.
A. Product identity and terminology
1. What is a roofing carrier?
Also called a reinforcement, base mat, scrim or inlay, it is the fibrous sheet that is coated and saturated with bitumen to make a roll membrane. EN 13707, the European standard for flexible reinforced bitumen sheets for roof waterproofing, defines the characteristics of such sheets; its German title refers to a carrier insert (“Trägereinlage”) (S4). The main carrier families are spunbond polyester, staple-fibre polyester, glass-fibre mat or tissue and composites (a polyester mat with glass reinforcement). Related membranes are discussed in the guide Construction membranes for the building envelope.
2. What is spunbond polyester?
It is a nonwoven made by extruding polyester (PET) filaments, laying them as a web and bonding the web, typically by needle-punching, thermal bonding or chemical binder, then often calendering or treating the surface. One maker describes its carrier as 100% polyester spunbond filaments, needle-punched to form a porous, stable structure (S3). Continuous filaments differ from staple-fibre mats, which are made from cut fibres; the two are not interchangeable without checking data. Sources are mostly manufacturer pages.
3. How does PET spunbond compare with other carriers?
| Carrier | Reported features | Points to confirm |
|---|---|---|
| Spunbond polyester | High elongation and tear resistance; porous for bitumen uptake (S3) | Basis weight, bonding, thermal stability, impregnation |
| Staple-fibre polyester | Polyester nonwoven made from cut fibres; listed as a separate carrier type (S5) | Strength, uniformity and cost versus spunbond; request data |
| Glass-fibre mat or tissue | Dimensional stability; low elongation | Brittleness; handling; tear |
| Composite (polyester + glass) | Combines elongation and dimensional stability; a maker claims 90 g/m² composite outperforms 200 g/m² spunbond (S6) | Claim is promotional; request data and method |
Source basis: S3, S5, S6; qualitative and not a ranking. Comparative claims come from manufacturer pages without test data.
4. Where are polyester carriers used?
In APP- and SBS-modified bitumen membranes for roofs, basements, balconies, terraces, tunnels and parking decks (S1, S3). Other uses include shingles and synthetic membranes; this page concentrates on roll membranes.
5. When is a polyester carrier suitable, and when not?
Reasonable candidates: membranes where elongation, tear and fatigue resistance matter, for example under movement-prone substrates, and processes that keep bitumen and torch temperatures within the carrier’s limits.
Weak candidates: processes with temperatures near or above the polyester’s softening and melting range without validation, applications where very low elongation or dimensional stability is the priority (where glass or a composite may be preferred), or low-cost sheets that cannot absorb the carrier’s price. Suitability is specific to the membrane design.
6. Which terms will I meet?
Carrier, reinforcement, base mat, spunbond, needle-punched, basis weight (g/m²), MD and CD, tensile strength (N/50 mm), elongation at break, nail-shank tear, dimensional stability, impregnation, saturation, coating, APP, SBS, pliability, flow resistance, EN 13707. Glossary: density.
B. Properties and performance
7. What basis weights are quoted?
One maker lists 150–300 g/m² for its needle-punched polyester roofing carrier, with widths of 1.0–3.2 m and custom lengths (S3); another lists seven grades from 123 to 253 g/m² of a calendered, needle-punched, chemically bonded spunbond with glass-fibre inlay, in widths of 1000–3300 mm (S7). Measured basis weights run a few g/m² above the grade name in that list. An APP-modified membrane datasheet lists a reinforcement basis weight of 300 g/m² (S1). Heavier carriers generally give higher strength but take more bitumen and cost more; the relation to membrane performance depends on the bonding and filament structure.
One maker's published carrier grades
From one manufacturer's product page for a calendered spunbond polyester reinforcement with glass-fibre inlay. Basis weights as listed (two grades show the same value, possibly a typo). No strength data are published on the page. Grade-specific.
| Property | Value or range | Unit | Test conditions | Test method | Grade or construction | Source | Verification status |
|---|---|---|---|---|---|---|---|
| Basis weight, grade 120 | 123 | g/m² | As listed | Not stated | SN-SPY/DR120 | S7 | Manufacturer-specific value (one grade) |
| Basis weight, grade 140 | 143 | g/m² | As listed | Not stated | SN-SPY/DR140 | S7 | Manufacturer-specific value (one grade) |
| Basis weight, grade 160 | 163 | g/m² | As listed | Not stated | SN-SPY/DR160 | S7 | Manufacturer-specific value (one grade) |
| Basis weight, grade 180 | 183 | g/m² | As listed | Not stated | SN-SPY/DR180 | S7 | Manufacturer-specific value (one grade) |
| Basis weight, grades 200 and 220 | 223 (both listed) | g/m² | As listed; one may be a typo | Not stated | SN-SPY/DR200, DR220 | S7 | Manufacturer confirmation required |
| Basis weight, grade 250 | 253 | g/m² | As listed | Not stated | SN-SPY/DR250 | S7 | Manufacturer-specific value (one grade) |
| Roll width | 1000 to 3300 | mm | Maker's range | Not stated | Same family | S7 | Manufacturer-specific value (one grade) |
| Roll length | 800 to 1800 | m | Maker's range | Not stated | Same family | S7 | Manufacturer-specific value (one grade) |
8. What do tensile and elongation figures mean?
Roofing membrane tensile strength is commonly expressed in N/50 mm strip width, measured in the machine direction (MD) and cross direction (CD) per EN 12311-1, together with elongation at maximum force. The two datasheets read give different values for different sheets: an APP sheet at 1100/1000 N/50 mm and 50% elongation, and an SBS sheet at 750/550 N/50 mm and 40%, with tolerance bands (S1, S2). The carrier’s own strip tensile (nonwoven test, such as EN 29073) is a different measurement from the finished sheet’s, and the finished sheet depends on bitumen compound, thickness and impregnation. The carrier maker pages read give only qualitative tensile statements (S3, S7); a search of the carrier makers’ public pages did not find strip-tensile or elongation tables for any PET spunbond roofing carrier, so grade-specific carrier strength has to be requested from the supplier.
Finished membrane data from two datasheets
Finished-sheet values from named product datasheets; not carrier-only values and not typical for the class. Values depend on bitumen, thickness and carrier.
| Property | Value or range | Unit | Test conditions | Test method | Grade or construction | Source | Verification status |
|---|---|---|---|---|---|---|---|
| Reinforcement basis weight, APP sheet | 300 | g/m² | As stated on datasheet | Not stated | Testudo Spunbond Polyester 30 (4.0 or 5.0 mm) | S1 | Manufacturer-specific value (one grade) |
| Tensile strength MD / CD, APP sheet | 1100 / 1000 (±20%) | N/50 mm | Laboratory tests | EN 12311-1 | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
| Elongation MD / CD, APP sheet | 50 (±15) | % | Laboratory tests | EN 12311-1 | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
| Nail-shank tear, APP sheet | 250 (±30%) | N | Laboratory tests | EN 12310-1 | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
| Tensile strength MD / CD, SBS sheet | 750 / 550 (600–900 / 400–700) | N/50 mm | Nominal with min and max | EN 12311-1 | Kerabit 7 (polyester-reinforced SBS) | S2 | Manufacturer-specific value (one grade) |
| Elongation MD / CD, SBS sheet | 40 (25–55) | % | Nominal with min and max | EN 12311-1 | Kerabit 7 | S2 | Manufacturer-specific value (one grade) |
| Nail-shank tear, SBS sheet | 230 | N | Nominal | EN 12310-1 | Kerabit 7 | S2 | Manufacturer-specific value (one grade) |
| Carrier basis weight range | 150–300 | g/m² | Custom grades available | Not stated | One needle-punched polyester carrier | S3 | Manufacturer-specific value (one grade) |
9. How does thermal stability matter?
Bitumen compounding, impregnation and torch application all involve heat. The APP datasheet states the polyester reinforcement melts at 260 °C and that overheating damages the membrane, and gives flow resistance of at least 120 °C and cold flexibility to -15 °C for the sheet (S1). The SBS sheet shows flow resistance at 80 °C and pliability at -25 °C (S2). A carrier maker page says its carrier is suitable for hot-melt bitumen processing and maintains dimensional stability under thermal stress, without temperature limits or data (S3). Heat shrinkage of a spunbond web under process conditions should be requested as data.
Thermal statements in the sources
Sheet-level figures from product datasheets plus a qualitative carrier statement. Not carrier-only data.
| Property | Value or range | Unit | Test conditions | Test method | Grade or construction | Source | Verification status |
|---|---|---|---|---|---|---|---|
| Polyester reinforcement melting point | 260 | °C | Stated for torch-applied APP sheet | Not stated | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
| Flow resistance, APP sheet | at least 120 | °C | Sheet | EN 1110 | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
| Cold flexibility, APP sheet | at most -15 | °C | Sheet | EN 1109 | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
| Flow resistance, SBS sheet | 80 | °C | Sheet, nominal | EN 1110 | Kerabit 7 | S2 | Manufacturer-specific value (one grade) |
| Pliability, SBS sheet | -25 | °C | Sheet, nominal | EN 1109 | Kerabit 7 | S2 | Manufacturer-specific value (one grade) |
| Dimensional stability, APP sheet | -0.5 / +0.3 | % | Sheet | EN 1107-1 | Testudo Spunbond Polyester 30 | S1 | Manufacturer-specific value (one grade) |
10. How does bitumen impregnation work?
The carrier passes through a hot bitumen bath or coating line. A porous, uniform structure is described as giving even impregnation and strong interlayer adhesion (S3). Poor impregnation leaves dry spots that can delaminate or wick water. Key variables are web porosity, thickness, surface treatment (binder or coating), bitumen viscosity and line speed. Ask the carrier supplier whether the carrier is pre-treated and for impregnation trial guidance.
11. What is coating compatibility?
Compatibility covers adhesion to APP, SBS and other polymer-modified compounds and to any binder or pre-coat on the carrier. Test with the actual compound; claims that a carrier works with “modified asphalt or polymer coatings” (S3) are general. Binder thermal stability is also relevant.
12. How does the carrier reinforce the membrane?
The bitumen compound is weak in tension; the carrier takes the load and limits elongation until yield. Higher carrier elongation gives the sheet some ability to accommodate movement; low-elongation carriers give dimensional stability but can tear in movement. The finished sheet’s tensile and elongation data on the datasheet are the combined result (S1, S2).
13. Which standards are named in the sources?
- EN 13707: flexible reinforced bitumen sheets for roof waterproofing (S4); published October 2013, superseding the 2004+A2:2009 edition.
- EN 12311-1: tensile properties of bituminous sheets (S1, S2).
- EN 12310-1: nail-shank tear resistance (S1, S2).
- EN 1109, EN 1110, EN 1107-1, EN 1928, EN 12691: flexibility, flow resistance, dimensional stability, watertightness and impact (S1, S2).
The standards themselves were not read; check current editions and national requirements.
C. Manufacturing and processing
14. How are spunbond carriers made and converted?
Extrusion of PET filaments, web formation, bonding, optional calendering or binder treatment, winding and slitting. The membrane maker then unwinds the carrier, impregnates and coats it with bitumen, adds surface finishes and cuts rolls. Process details differ by supplier and are proprietary.
15. What converting issues arise?
Roll width and slitting accuracy, web tension and shrinkage during bitumen impregnation, wrinkle control, splice joins, and unwind stability. Ask for roll widths (the sources read quote 1.0–3.2 m for one carrier), maximum roll diameters and core sizes.
16. Can carriers be combined or laminated?
Composite carriers combine polyester with glass reinforcement; one maker claims a 90 g/m² composite has higher tensile than a 200 g/m² spunbond mat (S6). That claim is promotional and was not tested here.
17. What failures appear and how are they diagnosed?
| Observed problem | Possible cause | Check |
|---|---|---|
| Dry spots or delamination | Poor impregnation; low porosity; carrier contamination | Impregnation trial; porosity; line speed |
| Carrier shrinkage or wrinkles on the line | Heat shrinkage; tension | Heat-shrinkage data; tension setting |
| Low tensile in finished sheet | Basis weight too low; weak bonding; bitumen | Strip tensile of carrier; sheet test per EN 12311-1 |
| Carrier damage under torch | Overheating near the polyester melting point | Torch practice; carrier heat resistance data |
| Poor adhesion between layers | Binder or surface treatment incompatibility | Compatibility trial with the compound |
| Variable results across rolls | Basis-weight variation | Basis-weight tolerance and incoming inspection |
Source basis: S1, S2 and S3 for context; diagnosis steps are general practice.
D. Applications and qualification
18. How should a carrier be selected?
Define the membrane type (APP, SBS, other), thickness, process (hot-melt, torch), target tensile and elongation in the product specification, standards (EN 13707 or other), cost target and supply region. Shortlist carriers with data on basis weight tolerance, strip tensile, elongation, heat shrinkage, porosity and binder. Request samples for impregnation trials.
19. How should a carrier be qualified?
- Obtain datasheet and certificate of analysis with methods and conditions.
- Check basis weight, thickness, strip tensile and elongation (MD and CD), and heat shrinkage at process temperature.
- Run an impregnation and coating trial on the actual line and compound.
- Test the finished sheet per the product standard: tensile, elongation, tear, flexibility, flow resistance, dimensional stability, watertightness.
- Run ageing or accelerated tests as the specification requires.
- Confirm lot-to-lot consistency over several lots.
Source basis: S1 to S4; sequence is general practice.
20. Which documents should be requested?
Technical data sheet with methods; certificate of analysis per lot; basis-weight and tolerance data; heat-shrinkage data; binder or coating declaration; safety data or statement as applicable; packaging and shelf-life statement; and change-notification terms.
21. What acceptance criteria are sensible?
Incoming checks usually cover basis weight, width, strip tensile and elongation, and visual defects, with limits agreed in the purchase specification. This page gives no limits.
22. How should rolls be stored and handled?
Dry, covered and off the floor, with rolls protected from contamination and crushing. Follow the supplier’s guidance; the membrane datasheet read gives its own storage for finished rolls (dry, +5 to +35 °C, stored vertically, 36 months) which is not carrier guidance (S1).
E. Procurement, comparisons and decisions
23. Which commercial formats are common?
Rolls in set widths and lengths, on cores, in grades by basis weight; custom widths are offered by some makers (S3). Specify basis weight, width, roll length, core size and packaging.
24. What information is needed to request a quotation?
- Membrane type and standard; process and temperatures.
- Basis weight and tolerance; width and roll length; core size.
- Required tensile and elongation (MD/CD) and test method.
- Binder or coating requirements; heat-shrinkage limit.
- Annual volume, packaging and destination.
Use the RFQ brief tool to assemble this in the browser.
25. What do purchasing teams usually ask?
What data supports the strength claims; what the tolerance is; whether the grade is made by the quoted supplier; lead time and minimum order; price per square metre against basis weight; and how change notifications work. Compare cost per square metre of finished membrane, not only per kilogram of carrier.
26. How should cost and performance be compared?
Heavier carriers cost more per square metre and take more bitumen. Compare the cost against the finished sheet’s tested performance, not the carrier weight alone.
27. What regulatory and sustainability questions arise?
Product standards (such as EN 13707 where applicable), substance declarations, fire classification of finished roofs and recycled-content claims. This page makes no compliance declaration for any product.
28. What supplier qualification questions should be asked?
Who makes the carrier; where; what quality system applies; how lots are traced; and how changes are notified. See the supplier qualification checklist. PAXOMER does not confirm any supplier’s approvals or capacity on this page.
29. Which related pages should I read next?
- Guide: Construction membranes for the building envelope
- Related page: Water-resistive barriers
- Related page: Air and vapor control membranes
- Related page: Industrial electrical insulation materials
- Tool: Solution Finder
Manufacturing Regions & International Supply
Countries where public company or trade sources document manufacturing relevant to PET Spunbond Roofing Carriers, with the form of material made there and the date of the evidence. A listing is market context only. It does not indicate a PAXOMER relationship, availability or price.
- Japan: Polyester spunbond nonwoven production. Roofing-carrier grades are not confirmed. Intermediate material · Trade company profile, date not stated · R32
If you are evaluating manufacturers abroad, list in your RFQ brief the destination market, the documents you require and the delivery terms.
Engineering and purchasing FAQs
Each answer is general technical information, not a specification or a quotation.
What does a roofing carrier do?
It reinforces the bituminous membrane. The carrier provides tensile strength, elongation, tear resistance and dimensional behaviour; the bitumen compound provides waterproofing and flexibility.
What basis weight is used?
One maker offers 150–300 g/m² and one APP sheet datasheet lists a 300 g/m² reinforcement. The right weight depends on the membrane design and specification.
Is polyester better than glass-fibre?
Neither is universally better. Polyester gives higher elongation and tear resistance; glass gives dimensional stability and lower cost in some designs. Choose by the membrane’s requirements and data.
Can I use carrier figures to predict sheet strength?
Not directly. Finished-sheet tensile depends on the bitumen compound, thickness and impregnation. Test the finished sheet per the product standard.
How hot can a polyester carrier go?
An APP datasheet gives a polyester melting point of 260 °C and warns against overheating. Process limits are grade-specific, so ask for heat-shrinkage and thermal data.
What is EN 13707?
The European standard for flexible reinforced bitumen sheets for roof waterproofing, published in 2013. Check that it is the right basis for your market and the current edition.
What is needle-punched versus thermally bonded spunbond?
Needle-punching entangles filaments mechanically for a porous structure; thermal bonding fuses filaments at points. They give different porosity, strength and shrinkage, so ask which is used.
What information is needed for a quotation?
Membrane type and standard, process temperatures, basis weight and tolerance, width and roll length, tensile and elongation required, binder requirements, volume and destination.
Does PAXOMER supply specific roofing carriers?
This page does not confirm stock, representation, supply or qualification for any grade. PAXOMER works in technical supply and manufacturer development; describe your membrane and process in an inquiry to discuss whether a suitable qualified manufacturer can be identified.
Technical References
References below were opened on the access date shown. A source supports only the statement it is cited for. Standards are cited by number and title from public catalogue entries; their full text was not read unless stated.
- S1. Testudo Spunbond Polyester 30: technical data. Testudo Spunbond Polyester 30 datasheet (publisher not confirmed), 2019-05. cdn.shopify.com/s/files/1/0073/4455/4054/files/TestudoSpunbondPolyester30-en-_05 (opens in a new tab) manufacturer datasheet · accessed 2026-10-27
Provisional datasheet hosted on a retailer CDN; publisher not stated in the extract (primer names refer to Sika products); the impact value in the extraction appeared to be a typo. - S2. Technical data sheet: Kerabit 7. Kerabit (Kerabit 7 technical data sheet). tuotteet.kerabit.fi/Download/22693/Technical Data Sheet - Kerabit 7 ENG V7.pdf (opens in a new tab) manufacturer datasheet · accessed 2026-10-27
Polyester-reinforced SBS sheet; nominal with min and max values. - S3. Polyester spunbond needle-punched roofing carrier. Maijie Textiles. www.maijietextiles.com/news/polyester-spunbond-needle-punched-roofing-carrier/ (opens in a new tab) manufacturer literature · accessed 2026-10-27
Manufacturer web page; qualitative claims and a basis-weight range; no test data. - S4. EN 13707:2013 Flexible sheets for waterproofing: reinforced bitumen sheets for roof waterproofing. iTeh (EN 13707:2013 listing), 2013. iteh.es/catalog/standards/cen/288edd7d-4ddf-48f8-b5a8-4805270762e0/en-13707-2013 (opens in a new tab) standard catalogue · accessed 2026-10-27
Catalogue listing of scope and status; the standard was not read. - S5. Staple fibre polyester nonwoven mat for waterproofing. CNBM (staple fibre polyester mat listing). bjcnbm.en.made-in-china.com/product/GXAQeLmoFuRE/China-120GSM-Short-Fiber-Polyes (opens in a new tab) manufacturer literature · accessed 2026-10-27
Marketplace listing, cited only to show that staple-fibre mats exist as a separate carrier type; not read for data. The listing no longer loads (HTTP 404 on 2026-11-02). - S6. The Roofing Marketplace. Jzh Company (professionalroofing.net announcement), 2015. professionalroofing.net/Articles/The-Roofing-Marketplace--09-01-2015/3711 (opens in a new tab) manufacturer literature · accessed 2026-10-27
Product announcement; promotional claims about a composite carrier; no test data. - S7. Spunbonded polyester SN-SPY/DR. SP.Green (spunbonded polyester SN-SPY/DR page). spgreen.net/products_SPY_DR.html (opens in a new tab) manufacturer literature · accessed 2026-10-27
Maker product page: grades, roll sizes and process description; no strength data; undated.
Regional manufacturing evidence
Company and trade publications cited in Manufacturing Regions & International Supply. Each supports only the statement it is cited for (checked 29–30 October 2026). Naming a company here does not state or imply a relationship with PAXOMER.
- R32. Toray company profile (nonwoven sites in Japan, Korea and China; polyester spunbond in Shiga). Nonwovens Industry. www.nonwovens-industry.com/top-company-profile/toray/ (opens in a new tab) checked 2026-10-30
Evidence notes and limitations
What the information on this page does not establish. Confirm these points with the manufacturer, the current standard or the relevant authority before relying on them.
- The datasheet figures are for finished membranes from two named products, not carrier-only data; no PET spunbond carrier datasheet with tensile and elongation was found.
- S1 is a provisional 2019 datasheet on a retailer CDN; the publisher was not confirmed and its impact value looked like a typo.
- S3 and S7 give basis weights, sizes and process only; S5 is a marketplace listing and S6 a promotional announcement, neither read for data. No carrier-only mechanical values are given anywhere on this page.
- EN 13707 and the cited EN test methods were not read; editions and national requirements were not checked.
- Heat-shrinkage, porosity, binder and strip-tensile data for PET spunbond carriers were not found on any maker page read (S3, S7 list grades and process only); the Freudenberg building-materials page read gave no carrier data.
- This page has not been independently technically reviewed or certified.
Facts checked against the cited sources
- Basis-weight grades, roll sizes and process (calendered, needle-punched, chemically bonded, glass inlay) were read in S7.
- Finished-sheet tensile, elongation, tear, thermal and storage figures were read in S1 and S2.
- Basis-weight range, process description and qualitative claims were read in S3.
- EN 13707 scope and status were read in S4.
- The composite carrier claim was read in S6.
Where this connects to the full guide
The primary technical guide behind this page is PET / Polyester Spunbond for Roofing & Waterproofing. All its topics are indexed below.
Topics in the full guide
- Quick answer
- What should buyers decide before comparing roofing fabrics?
- Which finished product and manufacturing route need reinforcement?
- What is polyester spunbond in the offered grade?
- Which spunbond, staple and reinforced constructions should be compared?
- Which fabric function fits the intended membrane?
- What must the fabric specification and roll drawing state?
- Which carrier, backing and reinforcement terms need clarification?
- How will the fabric be coated, impregnated or bonded?
- Which coating and membrane interfaces need qualification?
See all 40 topics in the guide
Related guides, comparisons and tools
- PET / Polyester Spunbond for Roofing & Waterproofing Primary guide
- Roofing Membranes & Underlayment
- Industrial nonwoven materials
- Comparison: TPO versus EPDM Roofing: Construction, Seams & Qualification
Glossary: Basis weight · Change control · COA · Delamination · Dimensional stability · Dimensional tolerance · Elongation · Lead time · Lot traceability · MOQ
Tools: Product Finder (Roofing membranes and underlayment) · Manufacturer Finder
How can I submit an inquiry?
Describe your application, the specifications above and the qualification stage. The material and this page are carried into the form for you. PAXOMER replies by email; the form does not confirm stock, representation or qualification.