Key features of IVT membranes:

Water vapour permeability of sd < 0,02 m – effective removal of moisture from inside the building.
Resistance to UV radiation and extreme weather conditions – excellent performance in the Polish climate.
Strong multilayer structure – greater resistance to tearing and damage during installation.
Optional adhesive strips – for even better watertightness and faster installation.
Available in different weights per unit area – from cost-effective solutions to premium membranes.

Comparison of IVT roofing membranes

Model	Mass per unit area	Number of layers	Vapour permeability (sd)	UV resistance	Adhesive strip	Uses
IVT 140	~140 g/m²	3-layer	≤ 0,02 m	up to 2 months	❌	Cost-effective pitched roofs and lofts
IVT 160	~160 g/m²	3-layer	≤ 0,02 m	up to 3 months	✅ / ❌	Versatile roofing applications, including fully boarded roofs
IVT 180 PRO	~180 g/m²	4-layer	≤ 0,02 m	up to 4 months	✅	Roofs with more demanding requirements
IVT 200 PRO+	~200 g/m²	4-layer	≤ 0,02 m	up to 6 months	✅	Premium roofs, high UV resistance
IVT DUO SK	~170–180 g/m²	3-layer	≤ 0,02 m	up to 4 months	✅ (2 strips)	Fast, watertight installation without additional tape

How do you choose the right model?

IVT 140 – for less demanding roofs and cost-effective construction.
IVT 160 / 180 PRO – for most pitched roofs with insulation between the rafters.
IVT PRO+ / DUO SK – where maximum durability and watertightness matter: large roofs and premium projects.

Choose a membrane from Ambit – and sleep soundly under your roof

At Ambit, we will help you choose the ideal IVT membrane for your specific project, from single-family houses to large buildings. Our technical advisers will be happy to suggest the model best suited to your project.

Ambit – a sound roof starts with the layer beneath the covering.

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