New construction roofing for Phoenix custom homes and additions

A new construction roof starts on paper. We read the plans and truss layout, confirm the specified roof material and underlayment, and flag details that will cause trouble, such as a valley that dumps water onto a doorway or a parapet with no scupper outlet. Raising those points before framing finishes is far cheaper than fixing them later. Where the plans leave room to choose, we suggest materials and colors that suit Phoenix heat and your HOA.

Timing matters on a build. We schedule around the framers, the plumber setting vent stacks, the HVAC crew placing equipment and any solar installer who needs conduit runs or mounts. Deck nailing has to pass inspection before underlayment goes on, and some cities inspect at more than one stage. We coordinate with the builder or owner so crews are not standing on an open deck waiting, and so the building gets dried in before monsoon season reaches the site.

Additions are where we see the most trouble on newer roofs. Water runs along the joint between old and new, and if the tie-in is just new shingles butted against old tile, or a flat roof lapped loosely onto a pitched one, the first monsoon will find it. We cut back into the existing roof, weave new underlayment under the old courses and install proper flashing and crickets so water is pushed away from the joint rather than toward it.

When the materials differ, the transition gets extra attention. A shingle addition meeting a tile house, or a foam room meeting a shingle slope, each needs its own flashing method. Where the original roof is aging, we may suggest re-roofing the adjoining section so the old and new wear evenly. For low-slope additions common in central Phoenix, spray foam roofing can flow right into the transition with no seams.

Phoenix gives builders a few gifts and a few headaches. Little rain most of the year means it is easy to forget drainage until a monsoon proves the gutters, scuppers or canales are undersized. We size outlets for heavy summer downpours and keep water away from stucco and foundations. We also push for proper attic ventilation and, where budget allows, a radiant barrier, since both cost little during framing and save on cooling for decades.

If solar is planned, build for it now. Blocking in the right places, conduit routes and the correct mounts mean the array can go up without later tearing into a new roof. Clean edges matter too, and well-hung gutters and downspouts protect new stucco from staining. Builders working in growing areas like Buckeye and the far West Valley often call us for casitas and garages after the main house is finished.