51x51 Inch Reflective Bubble Attic Fan Insulation Cover, Hook and Loop Tape

Features: Indoor environment maintenance: Tight sealing stops outside dust, debris and humid air from entering rooms through idle vents. It supports consistent indoor cleanliness all year long. Paired with its temperature adjusting function, the cover helps sustain a stable living environment. It optimizes indoor air conditions while limiting unwanted cross-airflow between indoor areas and attic spaces. Effective air temperature regulation: By sealing unused attic fan and whole-house fan louvers, the cover blocks unintended air flow through vent gaps. It moderates indoor temperature across seasons and lessens the influence of outside temperature variation on living spaces. Reliable sealing eases the pressure of indoor temperature adjustment and maintains relatively steady indoor climate throughout the year. Specifications: Material: insulating aluminum film Color: silver Style: classic Department: adult Size: about 51 x 51 inch Package includes: 1 x Attic fan cover 2 x Hook and loop tape Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays

• Complete All in One Sealing Kit: this all‑in‑one sealing kit contains one 51 x 51 inch (130 x130cm) single‑bubble double foil insulation board alongside two rolls of white self‑adhesive hook‑and‑loop tape; Right after unpacking, you can apply this set to seal attic fan louvers; The board can be cut Custom sizing fits varied attic fan louvers, ceiling vents and whole‑house fan openings, supporting flexible setup for winter heat retention around vent openings
• Dual Foil Single‑bubble Insulation Structure: the fan cover adopts single‑bubble material with reflective foil applied to both sides; This material construction limits draft airflow and curbs heat exchange between indoor and outdoor spaces during cold months; It also stops dust and debris from drifting into living spaces; The layered build creates physical separation between indoor areas and ventilation openings, helping hold indoor warmth inside through the whole winter season
• Tool‑free Effortless Installation: this ceiling vent cover requires no tools for mounting; It can be secured to ventilators from outside, with no need to enter the attic space; The package supplies one roll of hook tape and one roll of loop tape; Each roll measures roughly 0.79 inches wide and 216 inches long; White adhesive backing attaches to clean, dry, flat frame surfaces, enabling straightforward mounting on different vent borders to block cold air infiltration in winter scenarios
• Reusable Seasonally Adaptable Design: hook‑and‑loop build supports installation, removal and re‑attachment without fresh adhesive for each use; This attic insulation cover can be applied through winter to cut down indoor heat loss; It shields interior spaces from sudden temperature swings and moisture brought by cold outdoor air; It works well for attic fans and whole‑house fan louvers that remain idle for long stretches, and can be adjusted according to seasonal shifting
• Widely Applicable: this product is well suited as attic vent covers for cold weather usage; It can be applied in living rooms, bedrooms, studies, dining rooms and other interior spaces; It fits many types of vents and brings practical convenience for daily living; Whole‑house fan covers assist in stabilizing indoor surroundings in winter; It helps contain indoor warmth, moderates indoor temperature conditions, and supports a more comfortable indoor environment throughout cold seasons