For many years roofers used asphalt saturated felt under roofing shingles and it was historically available in two standard weights.
Roofing felt 15 years.
Roofing felt can however be applied as a final layer to a shed roof to offer further waterproofness.
This felt is quick and easy to install.
It has a life expectancy of up to 15 years so it s very low maintenance while the range of colours available allow you to put your own spin on the look of your shed.
The 15 pound was for lighter weight projects while the 30 offered more heavy duty protection.
Felt roofing underlayment is typically available in two types.
No 15 felt and no.
The longer lasting felt is then available as a very sensible upgrade.
The cheap felt is often supplied as standard on pre made sheds to keep the sticker price down.
Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights.
Waterproofing and protecting your shed roof from the elements while elongating its lifespan.
15 pounds per hundred square feet and 30 pounds per hundred square feet.
An improved version of the shed felt uses a base of polyester fibres impregnated with bitumen is more durable and lasts for up to 15 years.
The main advantage of using felt roofing underlayment is cost.
Polyester base shed.
This traditional style roofing felt looks great in any garden.
It is typically used as an underlay that sits between the surface it is being applied to and the final layer of roofing material.
The heavier duty felt costs about 5 m2 against 3 m2 for the cheap felt.
30 felt is typically thicker stronger and may be less prone to tearing or ripping off during installation or weather events.