House Wrap Behind Metal Siding

In the 2015 irc the column in table r703 4 was eliminated and most of the exceptions to the required wrb in section r703 2 describing water resistive barrier were eliminated.

House wrap behind metal siding.

Owner wants to install vertical metal siding reverse standing seam rustwall over tyvek house wrap and is concerned about the heat build up melting the tyvek. One would be to remove the siding wrap the house and then reside it. House wrap requirements tyvek rwrap typar building paper roofing felt rosin paper. Exterior walls are 1 2 plywood w tyvek housewrap.

During a recent repair to our siding we found that the house had no building wrap tyvek under the siding. However as homeowners discover the advantages of steel siding a. House wrap is a weatherization membrane which provides a protective layer under a building s siding and over the wall girts or sheathing. It is literally wrapped around a building cut out around windows and doors and taped at the seams.

Siding manufacturers may recommend specific types of wrb to use with their products. Barricade building wrap will effectively protect wall systems of steel sided structures against moisture accumulation from condensation or water infiltration. Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. House under construction in coastal zone 3 2 story 2x6 wood framed.

In the end the decision to install house wrap under your siding is a personal one that you should make after discussing it with your contractor. The acceptability of various materials for use as house wrap or rain barrer under wall siding questions answers about moisture. Homes built under the 2006 irc and later versions most siding is requires a wrb. Moisture will find its way into these wall systems by way of cracked mortar joints gaps or cracks in the surface of the material.

Wood fiber cement vinyl brick stucco and others. Our house was built about seven years ago. Table of building wrap products and performance guide to choosing using synthetic paper felt plastic draining housewraps. However if you re interested a residing project offers the perfect time to examine your home s weather barrier and exterior insulation and improve it if need be.

House wrap behind a building s siding is an excellent secondary defense against the weather. House wrap is intended to be installed over the sheathing and behind the siding no matter what siding you are using. Barricade building wrap is a superb house wrap for steel sided buildings and homes. When building exterior walls with stone stucco brick when building exterior walls with stone stucco brick cedar eifs or fiber cement siding it is important to use an effective rain screen system that will provide a means for drainage and ventilation.

Builder omits house wrap under siding. It seems that we have two options. I have been asked to advise whether to 1. Take the tyvek off and start over with a better detail i typically.