Material sourcing guide

Waterproofing materials for wet, buried and exposed zones

Waterproofing covers liquid-applied and sheet systems for roofs, wet areas, balconies and below-ground structures. Start from the assembly detail, then request the product, accessories and project evidence as one package.

Dark waterproofing membrane rolls with one sheet partly unrolled.
Dark waterproofing membrane rolls with one sheet partly unrolled.
01 / Materials & uses

Start with the right material groups.

Liquid-applied systems

For balconies, wet rooms and complex details, name the substrate and the intended exposure. Compare materials by coverage and system build-up, not container size alone.

Sheet membrane systems

For roofs, podiums and buried walls, identify the membrane type, layer order and joint method. Include laps, terminations and details in the request.

Accessories and transition components

For corners, outlets, expansion joints and penetrations, list the compatible components with the membrane system they support.

02 / Package boundaries

A material price is only part of the package.

Your material schedule
01Liquid-applied systems
02Sheet membrane systems
03Accessories and transition components

One schedule, clearly separated scopes. This is a request outline, not an installation drawing.

Included materials

Describe each waterproofing layer by location, application method, format and net area, linked to the current assembly detail.

Connections & interfaces

List primers, tapes, sealants, fillets, trims and penetration parts, stating which package supplies each item.

Confirm separately

Clarify substrate preparation, protection layers, testing and waste allowances; do not infer a complete installed system from a material line.

03 / A comparable request

Six details that make offers clearer.

Product designation and intended location
State the exact product or system name and the zone where it is used so suppliers can check the intended exposure.
Substrate and condition
Describe the surface material and whether it is new, existing, damp or traffic-bearing before requesting the waterproofing proposal.
Assembly build-up
List the full layer sequence including primer, membrane, protection and wearing surface in the request.
Interfaces and details
Identify outlets, corners, upstands, movement joints and service penetrations with the associated accessory list.
Coverage and net quantities
Give the net area and the required number of coats or sheet laps; let the supplier declare coverage and waste.
Packaging and delivery stages
Request pack sizes, shelf life, storage limits and phased delivery units suitable for the planned site sequence.
Illustrative request lines
Item & descriptionQuantity
W-01Liquid-applied waterproofing for balconies; substrate, build-up and number of coats per project detail.340
W-02Self-adhered sheet membrane for below-grade walls; lap and termination details included in request.1250

Example quantities only; no live prices or supplier offers. Use your project schedule for final values and ask suppliers to list deviations.

04 / Compare the whole offer

Three checks before you decide.

Exposure matches the requirement

Compare the proposed product against the zone where it is used, including wetting, burying and traffic conditions.

Layer sequence is complete

Check whether the quote covers the primer, main membrane, protection and accessories needed by the assembly.

Joints and details are listed

Request a declared list for outlets, corners, junctions and penetrations rather than accepting a single area rate.

05 / Practical questions

Details worth clarifying early.

Is one membrane type suitable for every wet zone?

No. Roofs, buried walls and interior wet rooms have different exposure and substrate conditions. Request the proposal against the exact zone and assembly detail.

Should the waterproofing quote include protection and details?

Yes, if the package is intended to be complete. List protection layers, fillets, tapes and penetration parts so the offer boundary is explicit.

07 / Your next step

Turn your material schedule into a request.

Create a Matravo account to prepare your request. For account or sourcing-flow questions, visit support.