In order to understand the waterproofing advantages of a built-up felt roof, you need to know more about how the roof is constructed. A built-up felt roof is a type of roofing construction that waterproofs flat roofs. This is done as by the following steps:
- Installing a layer of bituminous felt
- Bonding the material to the previous layer
All in all, three layers are laid, with chippings to safeguard the felt material from the rays of the sun. In some instances, a mineral cap sheet is employed.
Defining Felt and Its Uses
According to roofers in Lichfield, felt is defined and used as follows:
- The material consists of a mat of fibres. These fibres are coated on each side with a bituminous coating.
- The felt surface is finished with a light sand.
- The felt is used to keep out rain and is available in rolls that are 1 metre wide.
- Felt comes in lengths of 8 metres to 20 metres.
- A modern felt normally uses a high-performance polyester mat or a mat made of glass fibre.
- Felt surfaces are coated with slate or sand granules to produce a mineral finish.
An Increased Life Span
The advantages associated with using high-performance felt have to do with longevity. A felt roof that is designed well normally lasts for approximately 15 years. If you use high-performance built-up felt, however, your roof can last twice as long. As a result, the expense per year is substantially lower.
When you make a selection for built-up felt roofing, you are choosing a covering which lasts longer than other roofing materials. As a result, this roofing upgrade is well-recognised for its waterproofing qualities.