E2T Series Insulated Impact Aluminum Sliding Windows

1.8 mm Thermal Break Frame

The E2T uses 1.8 mm aluminum walls — 30%–50% above industry baseline. Argon-filled double-pane tempered glass reduces heat transfer by about 34%. A thermal break strip blocks conduction through the frame. This structure meets energy efficient sliding windows standards. 10-year warranty covers frame, glass, and hardware.

Step-Down Dual Track Drainage

The inner rail is higher than the outer rail. Gravity pulls rainwater outward instead of letting it pool inside the frame. This stepped design protects horizontal sliding aluminium windows from wind-driven rain without depending on sealant alone. Reduces long-term mold and corrosion risk.

Anti-Typhoon Upper Roller System

The upper roller grips the top rail at multiple points, stopping the sash from swinging or derailing under storm-force wind. DERCHI developed this design from coastal installation performance data. A dampening core keeps daily operation quiet. Built to meet hurricane impact sliding window requirements.

Anti-Theft Track Block

A fixed block inside the rail stops the closed sash from being lifted out from outside. It works without locks or extra hardware. The block also limits wobble during sliding, reducing wear on seals and rollers. Tested against common forced-entry methods.

Siliconized Weatherstrip Seal

Silicone-coated pile strips resist UV, moisture, and temperature damage that causes standard seals to harden and crack. The strip contacts both sash and track, blocking rain and holding the panel firm. Maintains sliding window insulation performance across seasons without replacement.

Covered Drain Port Design

A cover plate over each drain exit lets water out but blocks wind-driven rain from reversing in. The cover also removes the whistle sound caused by air passing through open holes. Addresses two common failures in energy efficient sliding windows with one component.

Thermal Insulation

The E2T energy efficient sliding window achieves a U-value of 2.5 W/(m²·K) through an insulated aluminum profile paired with double-pane glazing. A lower U-value means less heat transfers through each square meter of window per degree of temperature difference. Rated at Grade 5, this configuration suits most temperate and subtropical regions without requiring triple glazing, helping maintain stable indoor temperatures year-round.

Wind Pressure Resistance

The E2T hurricane impact sliding window withstands 5,000 pascals of pressure without frame deformation, glass failure, or hardware damage. Rated at Grade 9, the highest classification under standard wind load testing, this performance level applies to coastal buildings, high-rise installations, and areas exposed to typhoons or hurricanes. The reinforced aluminum frame and multi-point locking system contribute to this structural strength.

Water Resistance

This aluminum sliding window prevents rainwater intrusion at wind pressures up to 450 pascals. The seal system around the sash and frame directs water outward through drainage channels. In practice, the window keeps interiors dry during storms with moderate to strong wind-driven rain. Rated at Grade 4, it meets the needs of most residential and light commercial buildings in rainy climates.

Air Tightness

Air leakage through this sliding window insulation is limited to 4.5 cubic meters per meter of joint length per hour. Tight seals along the rails and meeting stiles reduce drafts in all seasons. In winter, less cold air enters. In summer, conditioned air stays inside longer. Rated at Grade 6, this directly lowers the load on HVAC systems and supports reduced energy bills over time.

Sound Insulation

The E2T horizontal sliding aluminium window reduces noise passing through it by 30 decibels. This cuts common neighborhood sounds — such as conversations, barking, and light traffic — by roughly half their perceived volume. Homes in standard residential zones benefit most. Properties near airports or highways may need additional acoustic glass upgrades. This performance is classified as Grade 3.

Apartment

The E2T aluminum sliding windows use a horizontal sliding mechanism that requires zero swing clearance. This makes them practical for rooms under 20 square meters. The sealed insulation layer reduces noise transmission between units. Energy efficient sliding windows help maintain stable indoor temperatures without overworking HVAC systems. Impact-rated glazing adds a layer of forced-entry resistance on ground and upper floors.

Home Office

Productivity depends on a controlled environment. The E2T series provides sliding window insulation that limits sound transfer from streets, construction, and household activity. The thermal break in the aluminum frame prevents heat loss in winter and heat gain in summer. Wide glass panels allow natural light to reach desk areas. The low-profile track operates quietly during video calls and focused work sessions.

Hotel

Hotels require windows that balance guest comfort with operational cost control. The E2T horizontal sliding aluminium windows deliver thermal performance that reduces per-room energy consumption. In coastal or hurricane-prone zones, impact-rated glass meets wind-borne debris standards. The aluminum frame resists salt air corrosion. Smooth roller mechanisms reduce maintenance frequency across hundreds of guest rooms over the building lifecycle.

Office Building

Multi-story office structures benefit from the E2T system's large glass-to-frame ratio. This increases daylight penetration and reduces artificial lighting demand. Energy efficient sliding windows with insulated frames lower the overall thermal load on central HVAC systems. The aluminum construction maintains structural integrity under repeated daily use. Sealed weatherstripping blocks dust, moisture, and urban noise from entering the workspace.

Outdoor

Exposed areas such as pool enclosures, covered terraces, and balconies face wind, rain, and UV radiation. The E2T hurricane impact sliding window is tested to resist high wind pressures and airborne debris. Built-in drainage channels direct water away from the track. The aluminum frame withstands humidity without warping or corroding. These windows create a reliable seal between outdoor weather conditions and protected interior spaces.

Residential building

Townhouses, duplexes, and multi-family housing projects need consistent window performance across all units. The E2T aluminum sliding windows provide uniform thermal insulation and sound reduction. Sliding window insulation meets or exceeds local energy codes in most regions. Impact glass options satisfy building regulations in storm-rated areas. The standardized frame dimensions simplify bulk installation and reduce construction timelines for developers.

Exterior

Building envelopes demand long-term weather resistance. The E2T series features a thermal break structure that interrupts heat conduction through the aluminum frame. Factory-applied finishes resist UV fading and surface degradation for over ten years. Precision-machined seals at the frame-to-wall junction prevent air infiltration and water ingress. This protects both the interior climate and the structural integrity of surrounding wall materials.

Villa

Villas often feature open floor plans with wide openings toward landscapes or waterfront views. The E2T horizontal sliding aluminium windows accommodate panel widths that maximize unobstructed sightlines. The insulated glass unit controls solar heat gain while preserving visibility. Hurricane impact sliding window construction provides storm protection without permanent shutters. A low-friction roller system allows single-hand operation, even on oversized panels exceeding two meters in width.