What is a Class C vapor barrier?

This Class C Vapor Retarder is commonly utilized under below-grade interior slabs to reduce the amount of moisture vapor migrating from the ground into the building’s concrete slab.

What is the difference between vapor barrier and vapor retarder?

A vapor barrier is used during the construction of a building to prevent moisture damage to the building’s fabric. Now, a vapor retarder is defined by the International Residential Code (IRC) as “a vapor-resistant material, membrane, or covering with a perm rating of 1 or less.”

What mil plastic should be used under concrete?

10 mil
The most commonly used vapor barrier under concrete slabs is polyethylene (poly) plastic sheeting with a thickness of 10 mil or 15 mil.

What is Stego tape used for?

Stego Tape is a low-permeance tape designed for protective sealing, hanging, seaming, splicing, and patching applications where a highly conformable material is required. This pressure-sensitive tape is engineered to bond specifically to Stego Wrap, making it ideal for sealing Stego Wrap seams and penetrations.

How much does Stego wrap cost?

about $0.19 to $0.41 per square foot
How much does Stego Wrap Cost? Depending on the mil thickness and vapor barrier class rating, the Stego Wrap pricing ranges from about $0.19 to $0.41 per square foot. This pricing includes shipping. Generally, the higher the mil thickness, the higher the cost per square foot.

What is a Class B vapor barrier?

Once these measurements are taken, the vapor retarder is given one of the following three classifications: Class A – Maximum of 0.1 perms, minimum 45 lb/in tensile strength, 2200 grams puncture resistance. Class B – Maximum of 0.1 perms, minimum 30 lb/in tensile strength, 1700 grams puncture resistance.

What is the best material to use for a vapor barrier?

Reinforced polyethylene plastic sheeting (poly) comes in a variety of thicknesses and strengths. A 6 mil thick poly is commonly used as a vapor barrier and offers short-term savings to the homeowner.

Is Tyvek a vapor barrier?

Is DuPont™ Tyvek® a vapor barrier? No, DuPont™ Tyvek® is not a vapor barrier. It is made with unique material science to keep air and bulk water out while allowing moisture vapor inside walls to escape.

Does Stego tape stick to concrete?

Details. Stego Crete Claw Tape is an innovative and economical accessory that seals Stego Wrap to concrete while the concrete is placed and hardens.

How do you install a Stego wrap?

Stego Wrap should completely cover the concrete placement area. All joints/ seams both lateral and butt should be overlapped a minimum of 6” and taped using Stego® Tape. NOTE: The area of adhesion should be free from dust, dirt, moisture, and frost to allow maximum adhesion of the pressure-sensitive tape.