Roofing felt – a durable roofing material for all weather conditions

Roofing felt is a popular and affordable roofing material that protects buildings from rain, snow, wind, and moisture. It's used on everything from houses and vacation homes to garages and storage sheds. Thanks to its lightweight construction and flexibility, roofing felt is especially well suited for low-slope roofs.
Roofing felt is a popular and affordable roofing material that protects buildings from rain, snow, wind, and moisture. It's used on everything from houses and vacation homes to garages, storage sheds, and small accessory buildings, including Swedish Attefall houses. Thanks to its lightweight construction and flexibility, roofing felt is especially well suited for low-slope roofs.
What is roofing felt?
Roofing felt is typically made from a durable reinforcing material coated or saturated with bitumen, making it water-resistant and flexible. There are two common types: roofing underlayment, which is installed beneath other roofing materials, and bitumen cap sheets, which provide the roof's outermost layer of protection against the weather.
Modern cap sheets often feature a protective surface coating that helps the material resist sunlight, UV exposure, and wear.
What weather conditions can roofing felt withstand?
Roofing felt is well suited to Sweden's climate. It provides effective protection against rain, snow, freezing temperatures, and wind, while its flexibility helps it accommodate temperature changes.
| Weather conditions | Properties of roofing felt |
|---|---|
| Rain and heavy downpours | Provides waterproof protection when properly installed |
| Snow and freezing temperatures | Withstands cold weather and temperature fluctuations |
| Wind and storms | Good wind resistance with proper fastening |
| Sun and heat | The surface coating protects against UV exposure |
| Moisture | Helps prevent water from entering the roof structure |
Where does roofing felt work best?
Roofing felt is particularly well suited for low-slope roofs, where conventional roof tiles may not always be practical. It's commonly used on garages, carports, storage sheds, small accessory buildings, and vacation homes, as well as houses and larger properties.
| Feature | Benefit of roofing felt |
|---|---|
| Roof slope | Especially suitable for low-slope roofs |
| Weight | Lightweight material that reduces the load on the roof structure |
| Flexibility | Accommodates minor movement in the roof |
| Lifespan | Often around 20–30 years with proper installation |
| Maintenance | Relatively easy to inspect and maintain |
| Cost | Cost-effective option for many types of roofs |
Why choose roofing felt?
Roofing felt combines excellent weather resistance, low weight, and good flexibility with a relatively affordable price. This makes it a practical choice for both new construction and roof replacement or renovation projects.
By choosing the right type of roofing felt and ensuring proper installation, you can achieve durable, dependable roof protection that stands up to changing weather conditions.