A new roof starts with the deck beneath it, and getting that foundation right determines how every layer above performs for the next two or three decades. At Martinez Roofing, roof installation in Larkfield-Wikiup, CA begins with a careful inspection of the structural substrate before any material goes down. The sheathing must be dry, flat, and free of rot or soft spots. When we find damaged decking, we replace it rather than cover it, because shingles and underlayment can only perform as well as the surface they rest on.
What Separates a New Installation From a Replacement
Roof installation covers more than tearing off old shingles and nailing on new ones. For new construction, additions, detached garages, and accessory dwelling units, there is no existing roof to work from. This means we start from the bare framing and build the entire assembly, layer by layer, to meet current building codes and manufacturer specifications.
This ground-up approach gives us control over every detail. We confirm the slope supports the chosen roofing material, verify that ventilation is planned into the design, and install flashing at every transition before the first course of shingles goes on. With over ten years in this industry, we have learned that the decisions made during a fresh installation are the ones that prevent callbacks years later.
The Installation Process Step by Step
Every installation we complete follows a disciplined sequence. Skipping steps or rushing the order of operations is where most roofing failures begin, so we hold to a consistent method on each job.
- Deck preparation: We inspect and secure the sheathing, replacing any compromised panels and confirming the nailing pattern meets code.
- Underlayment and ice barrier: A synthetic underlayment goes down as the primary moisture barrier, with additional protection at eaves, valleys, and penetrations.
- Flashing and drip edge: Metal drip edge lines the perimeter, and step flashing is fitted where the roof meets walls, chimneys, and dormers.
- Shingle or panel installation: Courses are laid with correct offset, exposure, and fastening to resist wind uplift.
- Ventilation and finishing: Ridge vents, pipe boots, and cap shingles complete the system and allow the attic to breathe.
Because we are GAF Certified Plus, we install products according to the standards that keep manufacturer warranties intact. That certification reflects both our training and our commitment to doing the work the right way rather than the fast way, even though our turnaround time stays short.
Applications We Handle Across Larkfield-Wikiup
Roof installation covers a wide range of projects, and the right approach depends on the structure and how it will be used. We tailor each installation to the specific conditions of the property.
On new single-family homes, we coordinate with builders to install a complete roofing system that matches the architectural style and meets local wind and fire-resistance requirements. For additions, the challenge is tying the new roofline cleanly into the existing structure so the transition stays watertight. On garages, workshops, and ADUs, we size the materials and ventilation to the smaller footprint while holding the same quality standard we apply to the main residence.
We also install roofs on properties where an older covering was never done correctly and the owner wants a fresh start rather than another patch. In these cases, a full installation lets us correct past mistakes in flashing, ventilation, and fastening that have caused recurring leaks.
Materials and Technical Specifications
Shingle roofing remains the most common choice for homes in this area, and for good reason. Architectural asphalt shingles balance durability, appearance, and value, with wind ratings that stand up to Sonoma County storms. We match shingle weight and fastening to the slope and exposure of each roof.
Technical details that often go unnoticed make the biggest difference in a roof’s lifespan. Proper attic ventilation prevents heat and moisture buildup that can shorten shingle life and warp decking. Correct flashing depth and overlap at valleys and penetrations keep water moving off the roof instead of into it. Fastener type, length, and placement determine how well the covering resists uplift during high winds. We hold to these specifications on every job.
Why Homeowners Trust Martinez Roofing
Our business is built on three values that shape how we work: honesty, quality, and building connections. With a focused team of five, we give each project direct attention rather than passing it through layers of subcontractors.
We offer fair pricing and clear communication, so you understand what the work involves before it begins and what you are paying for along the way. If you are planning a new roof in Larkfield-Wikiup, reach out to Martinez Roofing to discuss your project and get the job done right the first time.
