| DuPont Tyvek HomeWrap and Tyvek DrainWrap | | | | Here is where both DuPont Tyvek HomeWrap and |
| have proven themselves time and time again to be | | | | DrainWrap are very different than any other product. |
| the highest quality house wrap available today. | | | | These products are made with a patented process |
| First you will want to understand the reason for | | | | that creates a non-perforated sheet made by |
| placing a house wrap on your home. It has become | | | | spinning extremely fine, continuous, high-density |
| more important than ever to use a good quality | | | | polyethylene fibers that are fused together to form |
| house wrap, With the expanded use of vinyl sidings | | | | a strong tight web. This process creates millions of |
| and fiber cement sidings, both having poor qualities of | | | | fine microscopic pores that allow moisture trapped in |
| shedding moisture due to their installation methods. | | | | the walls to breath out will blocking virtually all |
| In modern construction homes are being built for the | | | | exterior moisture from getting back to the |
| most part with wood sub sheathing under the | | | | sheathing. |
| exterior wall finish. This will usually be either plywood | | | | Tyvek DrainWrap has the added advantage of |
| or OSB (Oriented Strand Board) sheathing. These | | | | having what has been called a vertical grooved |
| products will eventually deteriorate or delaminate if | | | | crinkled surface which allows any water trapped |
| left exposed to exterior moisture. | | | | between the loose siding and the wrap to drain away |
| Thus the introduction of house wraps to replace the | | | | and is the recommended product to be placed behind |
| old practice of building paper or tar paper covers. The | | | | all fiber cement siding products. |
| house wrap is suppose to allow the walls to breath | | | | When properly installed and combined with the |
| moisture out to help reduce the chance of mold or | | | | recommended flashing system of DuPont FlexWrap |
| mildew build up while limiting the exposure of | | | | and Straight Flash you will have created the most |
| moisture on the sheathing from the outside. | | | | watertight home barrier available today. |
| Most modern house wraps use a similar process of | | | | These Tyvek products are both listed to have a 120 |
| taking a water resistant sheet and perforating its | | | | day resistance to UV exposure and when properly |
| surface to allow moisture in the wall to breath out. | | | | installed will hold up to wind and rain conditions as well |
| The problem with this system is rather obvious, if | | | | or better than any product on the market. |
| you poke holes in a surface and then expect it not | | | | Learn more about the proper installation of Tyvek |
| to leak any water when it gets wet you are going to | | | | HomeWrap as well as the DuPont Flashing system at |
| be disappointed. The rub is that there is an allowable | | | | my web site listed below. |
| level of permeation or infiltration that these | | | | If you think you have found a better house wrap |
| companies comply with that is considered to be good | | | | than Tyvek HomeWrap leave us a comment and tell |
| enough. | | | | us about it. |