Siding Replacement Case Study
The Woodlands, TX

Project summary
Repeated wind events and age-related granule loss left the roof vulnerable to leaks at valleys and wall transitions.
J&J Roofing and Siding delivered a spec-driven replacement with upgraded underlayments, metal flashings, and balanced ventilation.
The new system passed inspection on the first visit and included registered manufacturer and workmanship warranties.
Goals

Constraints

Constraints

Assessment & Findings

Solution & Materials

Shingles
Architectural asphalt shingles (wind-rated) with matching starter and ridge cap

Underlayments
Synthetic underlayment across field; self-adhered membrane at valleys, penetrations, and critical eaves

Flashings
New drip edge, valley metal, step & counter flashing at walls, chimney cricket tune-up

Penetrations
New pipe boots and storm collars, properly sealed

Ventilation
Continuous ridge vent and balanced intake at soffits

Fasteners
Corrosion-resistant nails to manufacturer pattern and local wind requirements
Process
1. Mobilize & Protect
Safety perimeter, tarp and plywood ground protection, gutter and AC unit shielding, magnet sweep plan.
2. Tear-off & Deck Repair
Full removal to deck; replaced isolated sheathing panels showing moisture damage.
3. Dry-in
Synthetic underlayment; self-adhered membrane at valleys, eaves, and penetrations before weather window
4. Flashing & Vent
New drip edge; formed step/counter flashing at sidewall; continuous ridge vent installed and balanced with intake.
5. Shingle Install
Manufacturer-pattern nailing, aligned courses, and ridge cap finish; color and reveal verified.
6. Closeout
Detail sealing, comprehensive magnet sweep, gutter clean, photo documentation, and warranty registration.
Timeline

Day 1 (AM)
Protection, full tear-off, deck repairs, dry-in
Day 1 (PM)
WRB/flashing integration; main elevations installed
Day 2
Complete shingles, ridge vent and caps, cleanup, final walkthrough
Results
Proper step/counter flashing and membrane at valleys ended chronic water intrusion
Balanced ventilation reduces attic heat, supporting shingle service life
HOA-approved color with crisp ridge lines and straight courses
Passed inspection on first visit; manufacturer warranty registered
Homeowner Quote
They showed every step in photos, finished in two days, and left the yard spotless. First big storm afterward—no leaks, no worries.

Tess L.
Katy (Houston GTA)
Project At-a-Glance

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