I. Basic Definition
Q: What is a windowsill line?
A: The windowsill line is an exterior decorative line installed at the bottom of the window. It serves the functions of waterproofing and drainage, covering rough edges, and aesthetic shaping. It is usually an EPS foam + mortar finished component.
Q: What is the difference between a windowsill line and a window header line?
A: Windowsill line: Below the window
Window header line: Above the window (window top line)
II. Specifications and Styles
Q: What is the standard width and projection of a windowsill line?
A: Standard projection is 60-150mm, height is 30-80mm. European, minimalist straight line, or curved styles can be customized according to the exterior wall style.
Q: Should a drip line be installed on the windowsill?
A: It must be done. A drip groove should be made at the bottom to prevent rainwater from flowing down the wall and staining the exterior paint.
III. Installation and Construction
Q: How is the windowsill line installed and fixed?
A: Adhesion + Anchoring: Bonded with special adhesive mortar. Large sizes are additionally secured with expansion anchors. Seams are sealed with weather-resistant sealant.
Q: What should be the installation slope of a windowsill line?
A: Exterior low, interior high, with a 2%-3% drainage slope to prevent rainwater from backing up into the windowsill.
Q: How are corners and window edge finishes handled?
A: 45° splicing for internal and external corners, with flat seams. The entire surface is meshed for crack resistance, then plastered and painted.
IV. Material and Durability
Q: Are EPS windowsill lines durable? Will they crack or fall off?
A: Standard finished EPS + crack-resistant mortar, properly installed, weather-resistant, crack-resistant, and not falling off, with a service life synchronized with the exterior wall insulation.
Q: Can it be used for self-built houses/community renovations?
A: Universal compatibility: Suitable for villas, self-built houses, exterior wall renovations of commercial housing, and exterior walls of office buildings.
V. Quotation and Customization
Q: How are windowsill lines priced?
A: Quotations are usually per meter. Complex shapes, irregular shapes, and thickened/widened versions will incur additional charges.
Q: Can custom sizes and styles be ordered?
A: Supports custom orders for any size, curvature, and carved patterns. Can be produced based on architectural drawings.