Installed by Side-Pro Exteriors across Seattle, Bellevue and Tacoma
Nichiha’s panels hang on a clip and drain behind. That is a different wall from a board nailed flat to the sheathing.
Nichiha’s Architectural Wall Panels are 5/8-inch (16 mm) fiber cement with ship-lapped edges, installed on a clip system that leaves a drained, back-ventilated cavity behind the cladding. Add the clip and the wall builds out to roughly an inch. In a climate where the question is not whether the cladding gets wet but how fast the wall behind it dries, that cavity is the entire argument.
The range runs from flat architectural panels to wood-look profiles such as VintageWood, so it turns up on contemporary Bellevue builds and on 1990s Seattle and Tacoma re-sides where the owner wants the look of cedar without the upkeep that comes with it.
The headline is a 30-year limited warranty on the NichiProducts lines, and it repays reading past the number. It is prorated — the depreciated retail cost reduces 2% a year from year four — the remedy is capped at twice the depreciated cost of the defective portion, and the reimbursement remedy ends after year 21. It transfers once. The Architectural Wall Panel lines carry 15-year product and finish warranties instead.
Maintenance is light but it is not nothing. Nichiha asks for cleaning every twelve months and says explicitly not to use a high-pressure washer — which is the single most common way a homeowner damages a fiber cement face.
James Hardie fiber cement · Ceraclad ceramic-coated siding · EQUITONE panels · All siding services
Two claims worth narrowing. On fire, Nichiha’s own wording is tighter than it is usually repeated: their 5/16-inch lap, panel and shingle products are rated non-combustible, and that rating does not automatically extend across the whole range. And while Nichiha describes fiber cement as naturally resistant to mildew, rot and pests, the 30-year warranty excludes mold — the same distinction that applies to every fiber cement on this site. Resistance is a material property; it is not warranty coverage. Nichiha publishes no numeric freeze-thaw result, only that panels are tested under ASTM and AAMA standards, so we do not quote a cycle count.