Description

Discover the exceptional Permavent Leto Breathable Roofing Felt 125gsm 1x50mtr, a high-performance breather membrane designed for roofing applications. With outstanding water penetration resistance (class W1) and excellent water vapour transmission (sd 0.02 m), it ensures durability and breathability. Its impressive nail tear resistance and tensile strength make it ideal for various roofing conditions, while its flexibility at -40°C guarantees reliability in cold weather.

Features & Benefits:

Breathable membrane for effective moisture control.
Lightweight design at 125g per square metre for easy handling.
High resistance to water penetration for reliable protection.
Excellent water vapour transmission properties to prevent condensation.
Strong nail tear resistance for durability during installation.
High tensile strength ensures structural integrity.
Flexible at low temperatures down to -40°C for all-weather performance.
Class E reaction to fire for safety in roofing applications.
Effective wind uplift resistance for secure roofing solutions.

Applications:

Residential roofing
Commercial roofing
New build construction
Renovation projects
Flat roofs
Pitched roofs
Under tile applications
Under slate applications

Technical Data:

Brand – Permavent
Range – Leto
Product Type – Roofing Breather Felt / Membrane
Weight Per Square Metre – 125g
Width – 1mtr
Length – 50mtr
Weight – 6.9kg
Resistance To Water Penetration, Class – W1
Water Vapour Transmission Properties (sd) – 0.02mtr
Nail Tear Resistance (MD) (EN12310-1) – 280N/50mm
Nail Tear Resistance (CD) (EN12310-1) – 155N/50mm
Tensile Strength (MD) (EN12311-1) – 100N/50mm
Tensile Strength (CD) (EN12311-1) – 120N/50mm
Flexibility At Low Temperature (EN1109:2013) – -40°C
Reaction To Fire, Class – E
Wind Uplift Resistance (Taped Lap) – Class 1–4
Wind Uplift Resistance (Battened Lap) – Class 1–2

Standards & Certifications:

BBA certification
UKCA marking

Transform your roofing project with the exceptional Permavent Leto Breathable Roofing Felt 125gsm 1x50mtr, designed for superior water resistance and durability, available now online or at our London shops.