Larimer wind and snow loads are site questions

Larimer County stretches from the streets of Fort Collins up into the foothills, through the canyons, and out to the high ground near the Wyoming line. A house on the valley floor, a cabin tucked in the foothills, a canyon parcel, and land up near the state line do not share a single set of building conditions. Each can face its own wind, snow, frost, and access questions.

The county’s building resources answer this by sending applicants to structural design information and an interactive wind map, and the building FAQ routes the same way whenever someone asks about snow load, wind load, or frost depth. There is no one countywide number waiting at the bottom of the page, because the right figure depends on where you stand.

So a generic Front Range rule of thumb is the wrong tool for a specific address. Roof design, additions, decks, barns, and accessory buildings all turn on the site and on the adopted code path that applies to it. Two parcels a few miles apart can call for different loads.

Before you assume an old structure can carry a new use, find out what design loads apply at that particular parcel. The county resources are the place to begin, and for anything structural, an engineer is often the next call worth making.