Envelope
Tear-off, housewrap, flashing, and insulation that protect NJ homes.
1970s aluminum and old wood underlayment often hide moisture damage. NJ Vinyl Siding photo documents sheathing issues and installs WRB and flashing before new panels go on.
9 min read
Tear-off
Recommended
Most full replacements
WRB
Housewrap
Taped seams
R-2–R-5
Insulated vinyl
Wall-line comfort
Photos
Sheathing docs
Before repair
Key takeaway
Full tear-off is often the right call on North and Central NJ homes with aluminum or failing wood siding. It allows new housewrap, sheathing repair, and window flashing. Insulated vinyl adds R-2 to R-5 and panel stiffness but does not replace attic air sealing for ice dams.
Why tear-off often wins in NJ
Layering new siding over dented aluminum traps moisture and hides rot. Tear-off exposes sheathing so repairs happen before wrap and panels.
- 1970s aluminum: dents, loose nails, and chalking are common.
- Tear-off benefits: straight walls, new WRB, and flashing upgrades.
- Photo documentation before proceeding with sheathing repairs.
Housewrap and flashing details
Shingle-lapped seams, sill pans, head flashings, and kick-outs at roof-wall joints keep water out during freeze-thaw cycles.
- WRB tape at seams and corners.
- Pan flashing at windows and doors.
- Kick-out flashing prevents streaking at roof intersections.
Insulated vinyl, ice dams, and process
Insulated vinyl helps comfort at the wall line. Ice dam control still depends on attic insulation and ventilation. Daily wall coverage during tear-off protects against rain.
- Insulated vinyl vs rigid foam: wall thickness and trim constraints vary.
- Ice dams: siding helps only when WRB and flashing are correct.
- Sequence: tear-off, repair, WRB, flashings, trim, siding, accents.
Common questions
Moisture and insulation FAQ
Full tear-off is recommended when aluminum is dented, wood is failing, or multiple layers exist. Tear-off allows sheathing inspection, new housewrap, and proper flashing at every opening.
Schedule a tear-off evaluation
NJ Vinyl Siding inspects wall conditions and documents findings before demo day.