Construction asphalt felt paper is a building material made from animal hair or plant fibers, which is soaked in asphalt and made from felt or thick paper blanks. It has the characteristics of impermeability and toughness, and is usually used as a waterproof and moisture-proof layer for roofs, foundations, basement walls, etc. Oil felt paper is also a general term for asphalt waterproofing membranes, which can be made into various types and specifications of products according to different materials and processes.

Asphalt glass cloth felt is a waterproof material with excellent performance and wide application. During the construction process, relevant specifications and standards should be strictly followed to ensure construction quality and waterproofing effect. Architectural asphalt felt paper, also known as felt or oil felt, is a widely used building waterproofing material. Building asphalt felt paper is an important building waterproofing material with broad application prospects and market demand. During use, relevant specifications and requirements should be strictly followed to ensure its waterproof effect and service life.

Construction precautions

Grassroots treatment: Before construction, the base should be thoroughly cleaned and treated to ensure that it is flat, clean, free of oil stains and loose materials.

Laying technique: When laying asphalt glass cloth felt, attention should be paid to the overlap width and overlap method between the rolls to ensure a tight bond between the rolls and the integrity of the waterproof layer.

Temperature control: During the construction process, the temperature and viscosity of the asphalt should be strictly controlled to ensure that the asphalt can be evenly coated on the fiberglass fabric and form a good bonding effect.

Post maintenance: After construction is completed, necessary maintenance and protection should be carried out on the waterproof layer to avoid damage or destruction.

Performance characteristics

Excellent waterproof performance: Due to the excellent waterproof properties of asphalt, asphalt glass cloth felt can effectively prevent water infiltration and protect buildings from water damage.

Corrosion resistance: Glass fiber and asphalt both have good corrosion resistance, which can resist the erosion of various chemicals and extend the service life of materials.

High temperature resistance: Asphalt can still maintain good stability at high temperatures, so asphalt glass cloth felt also has high temperature resistance and is suitable for waterproofing projects in some high-temperature environments.

High strength: The addition of glass fiber significantly improves the strength of the material, enabling it to withstand certain external forces and impacts.

The reason for the occurrence of hollowing in asphalt glass cloth and felt is often due to the high moisture content of the base layer of the membrane waterproof layer. Before the leveling layer is dried, the membrane waterproof layer is constructed to seal the moisture inside, and when exposed to hot gas, the waterproof layer swells up; When laying different types of oil felt rolls, if the pressure is not tight and the adhesion is not dense, the hot air generated during the operation will be trapped, causing the rolls to bubble and bulge. During construction, attention should be paid to the dryness of the base layer. During operation, it should be compacted and tightly adhered, and no gas should be trapped to prevent hollowing.