Best Us Energy Products Weatherproofing Window Insulation Kits in 2026

This product adds a great value

Product is highly durable and very easy to use

Item length: 8.0 inches

Item Weight: 4.6 lb

Country of Origin: China

Brand name: Reflectix

Two layers of polyethylene industrialized air bubbles bonded between two layers of highly reflective metalized aluminum polyester film. Industrialized strength, lightweight yet durable insulation designed to hold staples without tearing. Does not compress, collapse or disintegrate. Reflects 97% of radiant heat, emits less than 3% of heat, Class 1 / Class A fire rated radiant barrier that has passed the ASTM E84 test & ASTM E2599.

Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and maintenance free, cuts easily with utility knife or scissors and installs easier than fiberglass. Simply staple, nail or glue into place! No mess, and no itchy fibers!

Not affected by moisture or humidity. Inhibits condensation

Weatherproofing tape

For interior use in sealing cracks around doors and windows

Moisture resistant

EXTREMELY EFFECTIVE - reflect 95% of radiant energy, perfect RADIANT BARRIER.

VAPOR BARRIER -Unaffected by humidity and moisture, can be used indoor/outdoor.

SUPREME QUALITY - 3mm closed cell polyethylene FOAM ( not a cheap bubbles) sandwiched between highly reflective Engineered Foil on both sides. Easy to install, easy to cut and easy to clean, Strong but lightweight.

EXTREMELY EFFECTIVE - Reflect 97% of radiant energy, perfect RADIANT BARRIER. R-value up to 15.67 ( with one layer), up to 21.10 ( with two layers).

VAPOR BARRIER - prevents condensation, unaffected by humidity and moisture.

SOUND BARRIER - excellent sound deadener material.

Window Insulation Kit includes 1 roll of Max Strength shrink film and window kit tape

Easy to use roll of shrink film means no measuring needed - once applied, cut film to size

For best results use on clean and dry surfaces, including painted or finished wood, aluminum or vinyl

Lowers utility bills year round. This commercial grade highly reflective radiant barrier attic foil BLOCKs 95% of radiant heat gain and loss & keeps your home's temperature consistent

DIY install by stapling to the underside of attic roof rafters with staple gun. Don't forget to also install on all vertical exterior walls in attic (gable walls) to get complete coverage between indoor attic area and outdoors.

Industrialized strength perforated radiant barrier attic insulation is tear and puncture proof. Entire roll cuts easily with utility scissors or hack saw.

Reduce your energy costs by insulating your patio door or large window

Crystal clear film heat shrinks to seal out drafts and cold

Contains 84 x 120" of crystal clear film and 1/2-inch by 36-feet (432") roll of double-sided tape

The product consists of two 96% reflective layers of film bonded to two internal layers of heavy gauge polyethylene bubbles (total nominal thickness 5/16”).

Non-toxic, non-carcinogenic, fiber-free, safe to handle and does not require protective clothing or respirators to install. Easy to install and maintenance free, cuts easily with utility knife or scissors and installs easier than fiberglass. Simply staple, nail or glue into place! No mess, and no itchy fibers!

Not affected by moisture or humidity. Inhibits condensation

✔️ EASY-ACCESS 2-ZIPPER DESIGN … The new and upgraded 2-zipper design on our 25" x 54" x 11" attic stair cover lets you zip and unzip more easily than ever for effortless attic access.

✔️ R15.5 INSULATION RATING … Enjoy effective home insulation thanks to the R15.5 rating of this attic cover insulator. Features an operating temperature of 104-176°F.

✔️ SPECIAL ALUMINUM MATERIAL … Our attic door cover is made of a metallized aluminum known as MPET, specially chosen for its superior insulating qualities.

1,000 SQUARE FEET PER ROLL: 4ft Wide by 250 feet in length. This gives you 1,000 square feet of the strongest radiant barrier on the market. Heavy Duty Commercial Industrial Grade perforated breathable radiant barrier

HIGHLY REFLECTIVE: Double-sided (5ply), tear-proof strongest barrier out there. 99.97% Reflective E Value > Highly reflective to reflect radiant heat rather than absorb it . The Commercial Grade Industrialized Barrier is designed to withstand heavy handling and traffic without tearing, puncturing, or overly wrinkling. Cuts easily with utility knife or scissors so you can install it properly with ease.

ASTM COMPLIANT Fire Rating: Meets the American Society for Testing and Materials (ASTM) Class 1 Class A fire and smoke safety requirements of most state and local building codes, as well as the breathability standards for building materials. While primarily used for attic rafters and floors, our radiant foil works well for garages, workshops, storage units, barns, warehouses, and even older multi-storied homes that lack sufficient insulation.

Non Perforated White No Tear Commercial Grade (Will Not Tear)

Heavy Duty 8 Mil / White/Foil Finish / Water Proof / Wont Oxidize

Meets all US Fire Codes / Class 1 Class A Fire Rated

Solid Non Perforated No Tear Commercial Grade

500sqft (4ft x 125ft) Double Sided Solid Vapor Barrier / Radiant Barrier

Thickest and strongest radiant barrier product on the market. Allows for easier and quicker installation. Include all of the same benefits and advantages as Super R Plus.

COVERS UP TO 2 STANDARD WINDOWS: 3 ft. x 10 ft.

INCREASED COMFORT: Reduces glare up to 80%, making interiors more comfortable

ENERGY EFFICIENT: Rejects up to 46% of total Solar Energy, keeping your house cool

3M Outdoor Window Insulator Kit Keeps cold drafts out and warm air in

Clear heat shrink window film

Double-sided Scotch Window Film Mounting Tape

ENERGY EFFICIENT: Rejects up to 71% of total Solar Energy

PROTECTS INTERIORS: Blocks up to 99% of UV rays, helping to keep your interior from fading

INCREASED COMFORT: Reduces glare up to 69%, making interiors more comfortable

THE GAP AND CRACK ATTACKER! According to the US DoE, the average US home has a 1/2 mile of gaps and cracks. Air leaks account for 25-40% of the energy used for heating and cooling a typical home, resulting in higher utility bills. Fill the gaps and crack down on energy loss with GREAT STUFF PRO GAPS AND CRACKS INSULATING FOAM SEALANT!

CLOSE THE GAP! Great Stuff Pro Gaps and Cracks is a gun-applied, expanding spray foam sealant for use all around the home. It is recognized as a fireblock sealant and is orange colored for easy recognition. The sealant is ideal for gaps and penetration up to 3" (75mm), expanding to form an airtight, water-resistant seal adhering to wood, metal, masonry, glass, and most plastics.

EASY TO USE! Pop the top off of the can, screw on the can onto the gun, open the gun's valve and you are good to go! If the can is not finished after the job is done, leave it on the can and close the valve until the next use. When it comes to the cleaner, however, remove the can from the gun after usage.

Reflective Air² Insulation retains air longer and provides excellent insulation and sound reduction

Insulation is easy to install with no mess or fumes and will not cause itchy skin

Ideal for attics, exterior and interior walls, radiant floors, metal and steel buildings, crawl spaces, garage ceilings and many other applications

Includes all of the same benefits and advantages as a traditional radiant barrier with the solid white coating

Made in USA / SHIPS from USA

Corrosive resistant / wont oxidize / waterproof / heavy duty commercial and residential

For use on wood doors and wood casement windows

Packaged with nails. Nails should be approximately 1-1/2" on center.

Available in 17 ft. rolls. Larger sizes may be available - please contact customer service

1,000 SQUARE FEET PER ROLL: 4ft Wide by 250 feet in length. This gives you 1,000 square feet Double Sided Diamond perforated breathable radiant barrier

HIGHLY REFLECTIVE: Double-sided metailzed aluminum barrier. 99.97% Reflective E Value > Highly reflective to reflect radiant heat rather than absorb it. The Diamond Residential Grade Scrim reinforced barrier cuts easily with utility knife or scissors so you can install it properly with ease.

For New Construction or Retrofit: It is non-toxic and does not promote the growth of fungi or bacteria nor does it provide no nesting support for rodent or insects. Works for both new and pre-existing buildings. The material is unaffected by humidity and climate changes so no further maintenance is required upon installation. It is a superior alternative to bulky insulation such as foil-faced bubble wrap.

....................................Stop Drafts, Save Energy & Save Money!!

38 adhesive backed outlet sealers & 12 plumbing sealers.

Only adhesive backed outlet sealers!! Shipped in PLAIN PACKAGE.

[✔Universal Design]：Air Conditioner Side Insulating Panels design to cover your broken original panel or work as replacement,these Panels fit most of window units, 5000 - 22000 btu

[✔Keep House Comfortable]:Work like a window seal,seal out dust, pollen ,insects,heat and drafts.Foam material help reduces noise and vibrations,Keep your house comfortable

[✔Energy Save]：Help Insulates gap between AC units and window frames,keep out cold air into your house during winter and hot air in the summer,so you will reduce heating and cooling costs

84" x 237" film Saves energy and reduces heating costs Easily installs on metal, painted or varnished wood or vinyl clad frames with the double-face tape provided..

1/2" x 1008" tape Reduces condensation and prevents frost buildup

Insulates a 6'10" x 19'7" door or window Product is highly durable and very easy to use

Transparent tape

Easy to use and waterproof

Fixes cracks on window panes

Indoor Heavy Duty Film Window Insulation Kit

3 Pack

Size - 42 x 62 in.

SPECIAL NOTE! Signature Required At The Time Of Delivery. Due to the nature of this product, additional fees apply for returns in accordance with DOT guidelines. For Professional Use.

ENHANCED FORMULA! DuPont Froth-Paks have been redesigned for optimal performance and sustainability. IMPROVED SUSTAINABILITY! Global Warming Potential (GWP) has been reduced by 99%, with no harmful, ozone-depleting HFCs. NEW PATENED NOZZLE! Our new patented nozzle technology improves mixing ration and reduces overspray. FASTER CURING! Our tack free/cure time is the fastest in the industry at 30 seconds. REGULATORY COMPLIANCE! This formulation is compliant in all contiguous 48 states.

GAP FILLER! Large openings let air into a home and rob homeowners of money, energy efficiency and comfort. FROTH-PAK 650 Insulation Spray Foam is a Class A Fire Rated two-component, polyurethane foam that fills cavities, cracks & expansion joints and yields up to 650 board ft of foam (54.1-cubic ft). Can be used to insulate stud wall cavities, cold floors above unheated areas, crawl spaces, attic walls, and ceilings up to 2” thick & is Green Circle Certified, LEED V4 Compliant, and ICC listed.

4ft x 3ft 1/4 white foam core (white one side silver other side)

16ft double sided tape (can be used over and over)

easy to install with a utility knife or razor

①Including one piece of 120cm X 160cm transparent film,one roll of adhesive loop straps(2.5cm width), one roll of adhesive hook straps(2.5cm width) and one manual inside.Film thickness is about 180㎛(0.18mm or 7mil),enough to agiast strong winds.Fits for windows smaller than 120cm X 160cm.

②Easy to install by adhesive loop straps,no drilling tool need.Just peeling off the straps to open your windows for ventilaton.

③Soft,good tenacity and transparent material.Can be folded for reusing it in the future.