Tyvek HomeWrap & DrainWrap

How it Differs From Other House Wraps

First you will want to understand the reason for placing a house wrap on your home. It has become more important than ever to use a good quality house wrap, With the expanded use of vinyl sidings and fiber cement sidings, both having poor qualities of shedding moisture due to their installation methods.

Thus the introduction of house wraps to replace the old practice of building paper or tar paper covers. The house wrap is suppose to allow the walls to breath moisture out to help reduce the chance of mold or mildew build up while limiting the exposure of moisture on the sheathing from the outside.

Most modern house wraps use a similar process of taking a water resistant sheet and perforating its surface to allow moisture in the wall to breath out. The problem with this system is rather obvious, if you poke holes in a surface and then expect it not to leak any water when it gets wet you are going to be disappointed. The rub is that there is an allowable level of permeation or infiltration that these companies comply with that is considered to be good enough.

These products are made with a patented process that creates a non-perforated sheet made by spinning extremely fine, continuous, high-density polyethylene fibers that are fused together to form a strong tight web.

This process creates millions of fine microscopic pores that allow moisture trapped in the walls to breath out will blocking virtually all exterior moisture from getting back to the sheathing.

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When properly installed and combined with the recommended flashing system of DuPont FlexWrap and Straight Flash you will have created the most watertight home barrier available today.