What is the width and length of this product?

Its 6" wide - don't remember the length but google DuPont Flexwrap and you will find it. The is a great product and is the ONLY way to prevent moisture infiltration at the bottom sill of windows.

Will this still work if I add 1" of ridgid foam on top of 1/2" sheathing?

The trick will be to get it to stick to the foam. You could wrap to the sheathing first. Then add the foam and add another layer of the flex wrap. You might want to set the foam back 1" from the window and then bend the wrap to contact the first layer of wrap and then fold it over the foam. You can overlap the wrap to get it wide enough, just remember to watch the water flow and place the lower wrap under the outer layer so the water will not try to run inside. Hope this helps

How well does this work for sound dampening? Any ideas anyone?

Will not work for sound dreading, sound deading mats are a total different material

can i use this under and over the nailing flange on a new construction window?

Yes, I guess you could (the Flex wrap is for creating window seals) but Dupont Flash Tape would be better.

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DuPont Tyvek FlexWrap NF - 6" x 75' - 1 Roll

DuPont Tyvek FlexWrap NF - 6" x 75' - 1 Roll

Product ID: 12493621

Details

Brand
DuPont
Color
White
Material
Butyl
Number of Items
1
Recommended Uses For Product
Wall Indoor

💧Water resistant butyl material

📏6" x 75' roll size

🛠️Self-adhered, no mechanical fasteners needed

E£ 32347

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Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Wrap your build in next-level protection — because corners deserve the best!

PRO GRADE DIMENSIONS - Generous 6" x 75' roll covers large areas, reducing frequent replacements
SEAMLESS FLEXIBILITY - Extendable flashing adapts perfectly to corners and curves without extra fasteners
DURABLE WEATHER SHIELD - Premium butyl material ensures superior water resistance for long-lasting protection
EFFORTLESS INSTALLATION - Self-adhered film eliminates the hassle of nails or screws, saving time and labor
UNIVERSAL COMPATIBILITY - Works flawlessly on non-nailable substrates like foam board, fiberboard, and concrete masonry

DuPont Tyvek FlexWrap NF is a premium, self-adhered flashing roll (6" x 75') designed for professional-grade water resistance and flexibility. It installs easily without mechanical fasteners on a variety of substrates including non-nailable materials like foam board and concrete masonry, providing durable, seamless protection for walls and indoor applications.

Specifications

ASIN	B004SFSA78
Adhesive Format	film
Adhesive Location	self-adhered
Adhesive Side Count	1
Best Sellers Rank	#185,117 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #282 in Drop Cloths & Plastic Sheeting
Brand Name	DuPont
Color	White
Compatible Material	Cement
Customer Reviews	4.7 4.7 out of 5 stars (192)
Global Trade Identification Number	00083014102366
Included Components	Hardware Sealer
Item Dimensions L x W x Thickness	6"L x 6"W x 7"Th
Item Resistance	water resistant
Item Type Name	DuPont Tyvek Flex Wrap NF - Roll
Manufacturer	Wpl
Material Type	Butyl
Model	D14062882
Number of Items	1
Number of Packs	1
Other Special Features of the Product	Self-Adhering
Part Number	D14062882
Recommended Uses For Product	Wall, Indoor
Size Name	6" x 75'
Surface Recommendation	Concrete
UPC	083014102366
Unit Count	1 Count
Water Resistance Level	Water Resistant

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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E£ 32347

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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