Construction Insulator

Roofing & flooring for construction insulator projects.

Featured brands
Authenticated productsVerified shops
ThermosBrand
Frost Buddy
Newegg, Inc.

ThermosBrand

4.8
1345
Sold
154.0K+
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24oz Icon™ Food Jar
$44.98
16oz Stainless King™ Mug
$35.98
10oz Stainless Steel Food Jar
$22.98
16oz FUNtainer® Water Bottle With Locking Lid
$34.98
ICON™ Food Jar - 16oz, Ideal for Storing and Preserving Food
$41.98
16oz Stainless King™ Tumbler
$35.98

600ML 21oz Stainless Steel Vacuum Insulated Thermos Bottle, Water Flask, Dual-Layer Thermal Design, Portable & Multi-Use, Ideal for Travel, Home, Office, School, Insulated Water Bottles

600ML 21oz Stainless Steel Vacuum Insulated Thermos Bottle, Water Flask, Dual-Layer Thermal Design, Portable & Multi-Use, Ideal for Travel, Home, Office, School, Insulated Water Bottles

5.032 sold
-32%$12.31$18.09
12oz Icon™ Slim Can Insulator
ThermosBrand

12oz Icon™ Slim Can Insulator

5.010 sold
$22.99
Sounds G Count Me In Can Insulator- Keep Your Drinks Cold and Hot!

Sounds G Count Me In Can Insulator- Keep Your Drinks Cold and Hot!

4.8922 sold
$4.99
[56202i-125] WEN 56202i Super Quiet 2000-Watt Portable Inverter Generator Insulating Replacement Gasket, CARB-Compliant Household Appliance Part, Carb Safe Accessory, Replacement Parts
Free shipping

[56202i-125] WEN 56202i Super Quiet 2000-Watt Portable Inverter Generator Insulating Replacement Gasket, CARB-Compliant Household Appliance Part, Carb Safe Accessory, Replacement Parts

2 sold
$6.17
Camp'N Universal 14" RV Trailer Roof Vent Pillow Sun Shade Reflective Insulator - 1 Pack
Free shipping

Camp'N Universal 14" RV Trailer Roof Vent Pillow Sun Shade Reflective Insulator - 1 Pack

5.012 sold
$17.47
The Detroit - Insulated 12 oz Can Cooler I Beer Bottle & Soda Can Insulator, Keep Drinks and Beverages Cold by Puffin Drinkwear

The Detroit - Insulated 12 oz Can Cooler I Beer Bottle & Soda Can Insulator, Keep Drinks and Beverages Cold by Puffin Drinkwear

5.03 sold
$30.28
Neoprene Beer Bottle Insulator Sleeve Zip Up Cold Warm 12H Insulated for Camping Tailgating Sports Events Reusable Leakproof Enclosed Bottom Thick Stitched Edges Multicolor Drinkware
Free shipping

Neoprene Beer Bottle Insulator Sleeve Zip Up Cold Warm 12H Insulated for Camping Tailgating Sports Events Reusable Leakproof Enclosed Bottom Thick Stitched Edges Multicolor Drinkware

4.826 sold
$8.99
Turquoise stone Coffee Sleeve | Reusable Neoprene Iced Coffee Cup Cover 16-24oz Cowboy Print Eco-Friendly Insulator for Grande & Venti Cups

Turquoise stone Coffee Sleeve | Reusable Neoprene Iced Coffee Cup Cover 16-24oz Cowboy Print Eco-Friendly Insulator for Grande & Venti Cups

5.01 sold
$5.00
Western Barn Toile Coffee Sleeve | Reusable Neoprene Iced Coffee Cup Cover 16-24oz Cowboy Print Eco-Friendly Insulator for Grande & Venti Cups

Western Barn Toile Coffee Sleeve | Reusable Neoprene Iced Coffee Cup Cover 16-24oz Cowboy Print Eco-Friendly Insulator for Grande & Venti Cups

5.010 sold
$5.50
Universal Cup Insulator for to-go cups - Iced Coffee Sleeve – 32oz Double Wall Stainless Steel Reusable Cup Holder, Cup Insulator for Travel & To-Go Cups, Fits 16-32oz Starbucks/Dunkin/McDonalds Cups, Leak-Proof for Hot & Cold Drinks
Free shipping

Universal Cup Insulator for to-go cups - Iced Coffee Sleeve – 32oz Double Wall Stainless Steel Reusable Cup Holder, Cup Insulator for Travel & To-Go Cups, Fits 16-32oz Starbucks/Dunkin/McDonalds Cups, Leak-Proof for Hot & Cold Drinks

3 sold
$31.99
Chubby Buddy - Stainless Steel - Double Wall Vacuum Sealed - Glass Bottle Insulator
Free shipping
Frost Buddy

Chubby Buddy - Stainless Steel - Double Wall Vacuum Sealed - Glass Bottle Insulator

4.827.2K sold
$34.99
Spray Foam Insulation Kit - Polyurethane Foam with Gun
Free shipping

Spray Foam Insulation Kit - Polyurethane Foam with Gun

4.0654 sold
$69.99
Pack of 2 Door Draft Stopper Under Door Draft Blocker Insulator 40x2in White Strong Adhesive Noise Stopper Energy Efficient Weather Stripping
Free shipping

Pack of 2 Door Draft Stopper Under Door Draft Blocker Insulator 40x2in White Strong Adhesive Noise Stopper Energy Efficient Weather Stripping

5.010 sold
$11.99
Western Cowboy Coffee Sleeve | Reusable Neoprene Iced Coffee Cup Cover 16-24oz Cowboy Print Eco-Friendly Insulator for Grande & Venti Cups

Western Cowboy Coffee Sleeve | Reusable Neoprene Iced Coffee Cup Cover 16-24oz Cowboy Print Eco-Friendly Insulator for Grande & Venti Cups

4.9381 sold
$7.00
The Buoy

The Buoy

5.0110 sold
$19.74
DEWALT Safety Goggles, Clear, Anti-Fog, DPG84 - Insulator
Free shipping

DEWALT Safety Goggles, Clear, Anti-Fog, DPG84 - Insulator

4.278 sold
$18.99
The Insulator Glove Clip
Free shipping

The Insulator Glove Clip

1.029 sold
$49.99
Calculated Industries Construction Calculator,6 Lx3 1/4 In W 4080
Free shipping
Newegg, Inc.

Calculated Industries Construction Calculator,6 Lx3 1/4 In W 4080

3 sold
$84.99
Insulator Man Sticker, LINEMAN Hard Hat Sticker, Blue Collar Stickers, Gift for Electrician, Funny Gift, Decals for Hard Hat- Toolboxes- Helmet- Bin Doors.

Insulator Man Sticker, LINEMAN Hard Hat Sticker, Blue Collar Stickers, Gift for Electrician, Funny Gift, Decals for Hard Hat- Toolboxes- Helmet- Bin Doors.

5.05 sold
Limited time deal00:00:00
$4.78
Camp'N Insulated RV Skylight Cover 14" x 14" - Universal Camper Vent Insulator 2 Pack
Free shipping

Camp'N Insulated RV Skylight Cover 14" x 14" - Universal Camper Vent Insulator 2 Pack

2.512 sold
$26.97
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Introduction

Construction insulators installed under roofing or flooring reduce heat transfer and improve energy efficiency. Proper materials keep indoor temperatures stable year-round.

  • High R-value options for attics and subfloors
  • Moisture-resistant facings to prevent mold
  • Easy-to-handle batts or rolls for DIY installs

Find insulation suited to your build.

FAQs

Check local codes; many regions suggest R-38 to R-60 for attics to maximize energy savings.

Only if the old layer is dry and mold-free; otherwise, remove it first to avoid trapped moisture.

In cold climates, a vapor retarder on the warm side helps prevent condensation within the insulation.

Keep insulation at least three inches from recessed lights unless using IC-rated fixtures.

Wear gloves, goggles, and a dust mask when cutting or handling fiberglass insulation.