Downey Windows & Doors, Starting with the Seal Test

Downey windows and doors scoped from a paper test of every door and sash seal, then fitted with tempered insulated glass and solid, sealed slabs.

Describe the house and the work

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At a Downey house we begin at the exterior doors with a strip of paper. It is closed into the door at the latch side, the hinge side, the head and the threshold, then pulled. Where it slides out with no drag, the weatherstrip has stopped touching the slab, and that gap will pass drafts, dust and, in a fire, embers. The result for each door, and for each operable window tested the same way, shapes the scope.

What a loose strip of paper leads to

A gap at one point often means worn weatherstrip, which is replaced in its kerf. Gaps all along the latch side point to a slab that has warped or a frame that has shifted, and a new prehung door is the cleaner fix. A free strip under the slab means the sweep or threshold has worn, or the threshold sits too low. For windows, a sash that lets the paper slip at its meeting rail generally needs new hardware or a new unit. Each finding is written beside the opening it came from.

Glass and the Downey permit

New windows hold insulated glass whose tempered pane withstands far more radiant heat before cracking than plain glass. Doors get a solid or fiberglass slab, compression weatherstrip and an adjustable threshold, so the paper test can be passed again later. The Downey building department reviews the permit and the energy values of each unit. Wildfire rules for doors and glazing join that review only on a mapped parcel, so Downey addresses are read against the state maps before anything is ordered.

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Tell us about the house and the windows & doors work. We reply about a walk-through and a written scope.