Curtains tend to get filed under soft furnishing in hotel procurement. But blackout method, flame retardant certification, fabric width, and track system compatibility are all engineering parameters that need locking down before the specification phase. A curtain that doesn’t black out the room and a curtain in the wrong color are two different categories of mistake. The first one directly impacts the guest stay.
Contents Guide
Blackout: Three Methods
Blackout requirements vary by room type. Meeting rooms need full blackout for projection. Guest rooms need heavy light reduction but can tolerate minor edge leakage. Public areas may only need light filtering. The three methods differ substantially in cost and application.
Coated Blackout
An acrylic or polyurethane coating applied to the back of a polyester face fabric. The coating is typically black, white, or grey. Black coating delivers the highest blackout rate, over 99 percent. White and grey coatings sit slightly lower at 95 to 98 percent but read cleaner against light-colored face fabrics.
Coated blackout is the lowest-cost option. Over five to eight years of service, the coating can begin to degrade. Cracking, tackiness, delamination. Dryer climates extend the coating’s life. High-humidity environments accelerate aging. The standard choice for economy and mid-range hotels.
Triple-Weave / Laminated Blackout
Three layers thermally bonded: a face fabric, a middle blackout layer of high-density polyester, and a backing fabric. Blackout rate exceeds 99 percent. The blackout layer is protected between the face and backing, so it doesn’t degrade the way an exposed coating does. Heavier hand, better drape than coated. Noticeably longer service life. Price runs 30 to 50 percent above coated. Standard for high-end hotels.
Dual-Track System
Two independent tracks. The front track carries the decorative curtain. The rear track carries a separate blackout liner. Blackout performance is the strongest of the three methods. The liner hugs the window frame directly, minimizing light leakage around the edges. The decorative curtain can be removed for cleaning or replaced without touching the blackout liner. Requires enough window recess depth to accommodate two tracks and two stacks of fabric. Commonly used in high-end and boutique hotels.
Flame Retardant Compliance: Different Markets, Different Standards
Flame retardant compliance for hotel curtains depends on the project’s country and the local fire code. Different markets use different testing standards. A curtain that passes BS 5867 in the UK and a curtain that passes NFPA 701 in the US may use identical base fabric. The testing method and the pass criteria differ. Production needs to treat them as separate specifications.
When a customer sends an inquiry without specifying an FR standard, we confirm the applicable compliance requirement based on the project location before quoting.
BS 5867 (UK and Commonwealth)
Applies to curtains and drapery in public spaces: hotels, hospitals, schools. Divided into Type B (washable) and Type C (non-washable). Hotel curtains typically require Type B.
NFPA 701 (United States)
The primary US standard for hotel curtain flame retardancy. The test method differs from BS 5867. The two standards do not mutually cover each other.
IMO FTPC Part 7 (International Maritime Organization)
Applies to textiles in cruise ship cabins and public areas.
FR Implementation Methods
Inherent FR polyester: the flame retardant compound is introduced at the yarn manufacturing stage. FR performance does not degrade with industrial washing. Suited to long-term use and high-frequency laundering.
FR coating: a flame retardant treatment applied to finished fabric. Performance begins to decline after 20 to 30 wash cycles. Lower cost than inherent FR. Suited to projects with shorter replacement cycles.
Fabric Width and Seaming
Curtain fabric comes off the loom at a fixed width. If the window width exceeds the fabric width, vertical seams are required. Each seam is a visible line running the length of the curtain.
Common widths:
- 140 cm: Narrow width. Suited to small windows. Most decorative drapery fabrics are produced at this width.
- 280 cm: Wide width. Standard hotel room windows typically run 150 to 250 cm wide. A 280 cm width covers most single windows seamlessly. The standard width for hotel curtains.
- 300 to 320 cm: Extra-wide width. Used for floor-to-ceiling window walls, banquet halls, and public area glazing. Extra-wide production requires specialized looms and finishing equipment. Fewer suppliers, higher price.
If a project requires multiple fabric widths but the seams must not be visible, the triple-weave laminated structure can conceal seams behind the face fabric where the middle blackout layer blocks them from showing through. Single-layer coated blackout fabric cannot hide seams.
Heading Types and Track Compatibility
The heading construction determines which track system the curtain fits.
Pinch Pleat
The curtain top is gathered into evenly spaced pleats. Hooks attach the pleats to the track. The most common heading in hotel curtains. Compatible with standard tracks and motorized tracks. The fabric header sits close to the track, minimizing light leakage at the top.
Grommet
Metal rings embedded in the curtain header. A rod passes through the rings. Clean, modern appearance. Smooth operation. Suited to suites, lobbies, and boutique hotels. The gap between the ring and the rod leaks light. Not recommended for guest rooms with high blackout requirements.
Rod Pocket
A stitched pocket at the curtain top. The rod slides directly through. High friction during operation. Rarely used in hotels.
Sheer Curtains
Sheers manage light and privacy. They do not provide blackout. During the day, a guest room needs natural light without being visible from the building across the street.
Polyester with a linen-look texture is the most common sheer fabric. Polyester supplies strength and UV resistance. The faux-linen texture supplies a natural visual. Weight runs 50 to 120 GSM. Light transmission varies from 30 to 70 percent depending on weave density. White and off-white are standard.
Sheers typically share the same window frame as the blackout curtain. Fabric width needs to match. On flame retardancy: if the local fire code requires FR compliance for curtains, the sheer must meet the same standard. Don’t confirm FR for the blackout curtain and forget the sheer.
Curtain Specifications by Hotel Tier
Economy Hotels
Coated blackout (white coating, white backing that blends with light-colored guest room walls). 140 cm or 280 cm width depending on window size. Pinch pleat or grommet heading. FR compliance as required by local fire code. Sheers are optional. If installed, basic white polyester sheer with no need for linen-look texture.
Mid-Range Hotels
Triple-weave laminated blackout. 280 cm width for seamless coverage on standard guest room windows. Pinch pleat heading. Inherent FR polyester. Sheers installed alongside: white polyester with linen-look texture, medium weave density.
High-End Hotels
Triple-weave laminated blackout with dual-track system (decorative curtain and blackout liner on independent tracks). 280 cm or 300+ cm width. Pinch pleat or custom pleat style. FR compliance to the strictest standard applicable in the project’s market. Sheers in polyester-linen texture or genuine linen blend at high weave density for drape and privacy. If motorized tracks are specified, the total curtain weight must stay within the motor’s rated torque. This is not a decorative decision. It’s a coordination parameter with the electrical and mechanical scope.
Information That Helps Us Quote Accurately
The following details let us provide a more precise quotation and lead time on the first response:
- Project country and applicable fire code (if known)
- Window dimensions and whether seamed panels are acceptable
- Track type (manual or motorized). If motorized, the motor brand and torque rating
- Triple-weave laminated or coated blackout
- Whether the sheer requires the same FR treatment as the blackout curtain
Need curtain specifications for an upcoming project? Tell us your window dimensions, project location, and track system type. Response within 24 hours.