Over that you can install a weather resistive barrier home wrap then strapping and siding.
How to wrap a house for siding.
Seal all seams with a special tape provided by the house wrap manufacturer.
Apply house wrap up the gables before installing exterior trim even if the attic is not conditioned.
Not just another vinyl siding installation video.
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.
If you are only planning to install an inch or two of insulation on the outside you would need to go with the 6 mil poly vapour barrier on the inside and my choice would again be the rockwool in that case to avoid incidentally installing an additional vapour barrier on the outside which the foam could end up doing.
To sum it up house wrap is a lightweight paper like material that is most often used to completely cover the house directly on top of the sheathing and behind the vinyl siding.
Continue stapling down the edge of the material periodically adding staples.
Then use your staple gun or hammer stapler to tack the corner of the material in place.
General recommendations that usually apply to fabric type house wrap include.
Put the bottom corner of the house wrap about 2 inches past the corner in both directions.
Apply all layers of wrap shingle style where the top layers of a surface overlap the bottom layers.
Start at the bottom of your home s walls and unroll around the house.
Work from the bottom up overlapping the lower courses.
Along the top of the window or door create a top flap.
Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior.
Follow these steps prior to installing siding.
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.
For the easiest work plan to go from left to right.
Wrap the fabric around the edges of windows.
Continue unrolling around the house until you have reached the top of all exterior.
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Tyvek says you can use 4 staples per 9 feet of house wrap if you tape over them an apply the siding right away.
Install house wrap before doors and windows.
Unroll right over doors and windows and overlap vertical and horizontal splices at least 6 inches.