Should You House Wrap Before The Roof Goes On

Has anyone used the dupont tyvek attic wrap.

Should you house wrap before the roof goes on.

If you re cleaning your gutters you probably do get a birds eye view but don t realize there are many layers that make up your roof. There is an installation video on the tyvek site. The tyvek wrap is placed on top of the roof trusses joists before the house is sheathed. If you choose to install house wrap with rigid foam generally it should go under the insulation not around it.

The seams should be taped and the windows and doors should be taped. Take a wall of steel off at a time and place the house wrap on the outside of the wall framing making sure to properly seal all seams then reinstall the siding. Overlap horizontal seams 6 inches upper layer over lower layer. I think a roll is 4 x 100.

Before delving into why you should have house wrap under your vinyl it is essential to understand what exactly house wrap is. If there is not a good house wrap on the outside of the building you should go invest in some. Work from the bottom up overlapping the lower courses. Overlap the layers shingle style as you go up the wall like roofing shingles.

You typically aren t interested in the roofing layers that keep your home dry until. However this estimate may vary slightly depending on the house elevation. All you see when you look at the roof are the shingles slate or tile on top. The wrap should go behind the foam insulation.

Most homeowners never get up close to their roof. Overlap vertical seams 6 12 inches. Extend house wrap below the mudsill for water management but also for air sealing. Install the house wrap between the double top wall plates.

Decades ago the original form of house wrap used was asphalt coated felt paper. For a typical two story 2500 square foot house the general rule of thumb is that two rolls of tyvek size 9 x 150 should be adequate to wrap the house. Seal all seams with a special tape provided by the house wrap manufacturer. Wrap the fabric around the edges of windows and doors to the inside of the frame.

Seal the bottom of the house wrap to the sheathing with caulk or tape. What is house wrap. However you can rely on the advice of your contractor to make your final decision since not every professional agrees on this order. Once this is done the wrap is designed to make the home water tight in case a storm comes before the siding is finished being installed.

Over the years house wrap materials have advanced providing far more protection. Then yes it is recommended to have a tyvek type house wrap installed on your home.