Rollbase P/V Rollbase Holland/P

Index Rollbase P/V

Elastomeric polymer-bitumen membrane reinforced with fiberglass mat, with the underside finished with on-woven polyester fabric waterproofing membrane containing distilled bitumen and plastomers 

Index Rollbase Holland/P 

Membrane reinforced with non-woven single strand spunbond polyester fabric, with the upper face coated with an elastomeric polyester fabric, with the upper face coated with an elastomeric polymer bitumen compound. 


Index Rollbase, a membrane which is strong and stable both during application and in time. Compared to membranes reinforced with fibreglass mat Rollbase is 3-4 times more resistant to static puncture and nail tearing, therefore much more resistant to being walked on during installation and to the effects of wind on vapour barriers and complementary layers commonly used in the building trade. 

Index Rollbase P/V is manufactured with fibreglass mat reinforcement, coated with a polymer-bitumen compound. A “non-woven” polyester fabric is then attached to the membrane by thermal bonding with a strong and long lasting bond. The inorganic reinforcement gives the sheet excellent dimensional stability while the “non-woven” fabric guarantees the mechanical resistance necessary to resist tearing and puncture. Index Rollbase P/V has selvages for overlapping the sheets. 

Index Rollbase Holland/P on the other hand is reinforced with strong and rot-proof, “non woven” single strand spunbond polyester fabric while the upper face is coated with an elastoplastomeric polymer bitumen compound. Index Rollbase can therefore be nailed down and forms a solid base for following layers. 


Index Rollbase is particularly suited for covering roofs which are exposed to wind, chiefly for refurbishing metal roofs where mechanical fixing and a diffusion cavity for the moisture vapour trapped in the old covering is required. 

It may also be nailed to wooden roofs where it will provide a solid base on which to bond the waterproof covering. It may be dry laid as a vapour check or vapour barrier, or as a sliding layer on a bed of insulating panels on flat roofs and terraces ballasted with gravel which can be walked on. 

It can be spot bonded with fused bitumen or with cold adhesive and the bond is much stronger and lasts longer than that obtained between oxidised bitumen and membranes containing polymer-bitumen. 


The membrane is just one element, which joined with other such elements, form an unbroken layer which alone or with other unbroken layers, forms a waterproof surface. 

The membrane is part of an often complex stratigraphy, made up of different types of layers with different functions, which are often discontinuous and interact with each other. 

The high quality of the membrane alone is not enough to guarantee the successful implementation or the durability of waterproofing work in time, which are in fact the result of an inseparable combination of planning and the thorough knowledge of the stratigraphic behaviour which makes it possible to choose exactly the right materials for the job with a correct and attentive laying of the same, along with a meticulous attention to detail. 

Therefore, we advise the reader to study the laying methods, the behaviour of the materials and the connections between layers in depth, by carefully reading the following Index Spa. handbooks: “Technical specifications”, “Application manual”, “Composition and analysis of roofing protection systems”, Waterproofing”, where the various laying systems are described such as, bonding and hot air welding, mechanical fixing, cold bonding with adhesives and hot air welding. 

These handbooks also contain valuable information regarding the correct storage methods for the materials. The handbooks are also used for the various levels of training courses which Index organises at its Technical Training and Refresher Course Centre, where it is possible to carry out a more in depth study of application techniques and planning.

  • Index membranes do not contain coal tar; 
  • Index membranes do not contain asbestos; 
  • They do not contain dangerous substances as per Italian law 256 of 29 May 1974 and successive modifications and integrations (ref. Ministerial Decree 28 January 1992, enclosure III, section 2). 
  • With regard to Ministerial Decree of 28 January 1992 article 10 which deals with ‘the classification and contents of packaging and labelling of dangerous materials in carrying out directives issued by the Council and Commission of the European Community’ the polymer bitumen membrane discussed in this technical data sheet is not obliged to issue a health and safety sheet. However, there is an information card available to anyone who requires it, which deals with correct use of the product.
Technical Characteristics



Areic mass 

2 kg/m2 

1,2 kg/m2 

Tensile properties under max. load/breakage Long./Trans. (EN 12311-1) (4) 

400/200 N/5 cm 

700/400 N/5 cm 

Ultimate elongation Long./Trans. (EN 12311-1) (1) 



Resistance to tearing Long./Trasv. (EN 12311-1) 

290/190 N 

150/150 N 

Static puncture resistance (UNI 8202) • on concrete • on polystyrene 25 kg/m2 

200 N/150 N 

200 N/150 N 

Permeability to water vapour (EN 1931) 

μ > 60.000 

μ > 60.000 

Flexibility in cold conditions (EN 1109) 



Dimensional stability at 120°C (UNI 8202) 



Dimensional stability in hot conditions Long./Trasv. (EN 1107-1) 



Adhesion test – Peel strength on asbestos-cement 


After 7 days at 80°C 

Membrane bonded with • oxidised bitumen • cold bituminous glue adhesive: Mastipol 

33.7(1) N/5 cm 

28.0(3) N/5 cm 

36.0(1) N/5 cm 

30.6(1) N/5 cm 

Rollbase bonded with • oxidised bitumen • cold bituminous glue adhesive: Mastipo 

94.5 N/5 cm 

111.7(3) N/5 cm 

55.6(2) N/5 cm 

83.8(2) N/5 cm 

(1) Delamination between membrane and adhesive or bitumen (2) Mastipol adhesion loss (3) Separation of the adhesive or bitumen from the surface. (4) Nominal value tolerance conforms to UEAtc directive for polymer-bitumen membrane, January 1984. 








Roll size m 

No. of rolls per pallet 


Roll size m 

No. of rolls per pallet 

2 kgs/m. 

1 x 10 


1.2 kg/m. 

1 x 10 


Important Note

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® Construction Chemicals endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot – because a.b.e.® Construction Chemicals has no direct or continuous control over where and how a.b.e.® Construction Chemicals’ products are applied – accept any liability either directly or indirectly arising from the use of a.b.e.® Construction Chemicals’ products, whether or not in accordance with any advice, specification, recommendation or information given by the company.

Further Information

Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total requirements. a.b.e.® Construction Chemicals has a wealth of technical and practical experience built up over years in the company’s pursuit of excellence in building and construction technology.