A roof is only as good as the way it's put on. Sage Roofing installs roofs in Nampa on additions, garages, shops and full replacements, following the city's 20 psf snow and 115 mph wind design criteria and the manufacturer's specs at every step.
Tell us about the building and we'll schedule a free site visit.
Most roof failures we see in Nampa are not material failures. They come from how the roof was put on: high nails, missing starter strip, reused flashing or an attic with no exhaust.
Nampa keeps growing. About 22% of homes were built in 2010 or later, and new additions, ADUs, detached garages and shops go up every year. Each one needs a roof that ties in cleanly with what's already there.
Whether it's a brand-new roof deck or a tie-in on an older home, we install to the manufacturer's instructions and the city's design criteria.
Shops and outbuildings are a big part of the work around Nampa. On acreage in south Nampa, a detached shop or barn often has a long, simple roof plane, and metal panels go on quickly and shed snow well. On a home addition, the goal is the opposite: make the new roof blend in so no one can tell where the old one ends.
Tie-ins are where most addition roofs fail. Where a new roof meets an existing wall or roof plane, water wants to get in. We weave or cut in valleys properly, add step flashing at every course and seal the transition so it stays dry through freeze and thaw cycles.
We also look at the attic as one space. Adding a room can change how air moves through it. We check that intake and exhaust still balance once the new section is framed in.
Before we start, we confirm the roof framing is ready for the load. City of Nampa criteria call for a 20 psf ground snow load and a design roof load of at least 25 psf. On new construction that's the framer's job, but we still check the deck for flat, tight sheathing and proper fastening before installing over it.
Get My Installation QuoteThese are the details we never skip on a Nampa install. Skipping any of them is how a new roof ends up leaking in its first winter.
Nampa uses a 115 mph ultimate design wind speed. We place nails in the manufacturer's nail zone, use the high-wind pattern where called for and set starter strips at eaves and rakes.
Western Treasure Valley inversions keep snow on roofs longer. We run ice and water barrier at eaves, valleys and around penetrations so meltwater can't back up under shingles.
Intake at the soffits and exhaust at the ridge, sized to the attic. It keeps heat down in summer and moisture down in winter, and it's required by most shingle makers.
A Class A rating depends on the whole assembly, not just the shingle. We install the matching underlayment and components so the rating holds, which matters for homes near rangeland.
Where your home sits changes the job. We adjust the plan to the property, not the other way around.
Copper River Basin, Stoddard Crossing, Osprey Estates and Southern Ridge include many newer homes. Additions and ADUs here need to match the existing shingle line and color, and HOA rules may apply.
Older areas around Lakeview Park and the Midway area have homes from many decades. Tie-ins on these roofs mean matching pitch and blending new decking with older framing.
On properties like Foothill Ranch and Deer Sky Ranch, we install roofs on shops, barns and detached garages. Metal is often the best fit for these larger, simpler roof planes.
Every install follows the same order, so nothing gets missed.
Schedule My InstallationWe confirm the sheathing is solid, flat and properly fastened before anything goes on.
Drip edge at the eaves, ice and water barrier at eaves and valleys, then drip edge on the rakes.
Synthetic underlayment covers the full deck, lapped and fastened to spec.
Step and counter flashing at walls, pipe boots at penetrations, then starter strip and shingles nailed in the nail zone.
Ridge vent and caps go on last. We check every detail and clean the site before we leave.
0% interest for up to 18 months, or long-term plans as low as $149 a month, on approved credit. That can help when a new addition, garage or shop needs a roof before the rest of the budget comes together.
Yes. We tie new roof sections into the existing roof so the lines, shingles and flashing match. If the HOA has product rules, we work within them.
The City of Nampa design criteria list a 115 mph ultimate design wind speed. We follow the shingle maker's nailing instructions, including high-wind patterns where they apply.
We do. Acreage properties in areas like Foothill Ranch and Deer Sky Ranch often have shops and outbuildings, and metal roofing is a common choice for those buildings.
Winter inversions in the western Treasure Valley keep snow cover around longer than in Boise. As it melts and refreezes, water can back up under shingles. Ice and water barrier at the eaves and valleys stops that.
Most installs take 1–3 days once work begins. Bigger homes, steep pitches or shop roofs can take longer, and we give you a schedule in writing.
We match the manufacturer, line and color whenever the product is still made. Older shingles fade, so a brand-new section can look slightly different at first. We'll talk through options, including re-roofing the whole house, if a close match isn't possible.
Re-roofing an existing structure in Nampa needs a City of Nampa reroof permit, which includes overlays and full tear-offs. For a brand-new building, the permit path depends on the project, so we confirm the right permit with the city before work starts.
We install roofs across Nampa ZIP codes 83651, 83686 and 83687, from new homes near Lake Lowell to established streets near Lakeview Park.
Learn more about our roof replacement services or see all roofing services.
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Roof replacement, repair and metal roofing across the Treasure Valley. Manufacturer warranties up to 50 years, and still answering the phone after the job is done.
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