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Impact doors for Miami-Dade homes

Five types, from the sliding door that opens your living room to the front door people knock on.

The five types of impact door

Doors are the highest-visibility and highest-ticket part of most jobs, and the part where the difference between a good and a bad install shows up first: in how they seal against water.

  • Impact Sliding Glass Doors

    The highest-visibility and highest-ticket product in a typical job. It uses the same X and O notation as the windows, and the details that decide whether you are happy with it in five years are the rollers, the sill track and the threshold.

  • Impact French Doors

    One or two swinging glazed leaves. Where a slider always keeps half of itself in the way, a French door opens the opening almost completely — at the cost of the space the leaves need to swing through.

  • Impact Entry Doors

    The door people knock on is also an opening in the building envelope, and it has to be protected like any other. What changes with an entry door is the material, and how much that choice depends on how far you are from the water.

  • Impact Bi-Fold Doors

    Engineered aluminium frames whose panels concertina to one side. Where a slider always keeps half of itself in the way, a bi-fold gets nearly all of it out of the way — and unlike a pocket system it does not need a wall cavity to hide in.

  • Impact Pivot Doors

    An entrance meant to be noticed. Because the leaf turns on a pivot set into the floor and head rather than hanging from side hinges, it can be far wider and heavier than a hinged door of the same construction.

At a glance

The five types, side by side

Cost is relative between these types, not a price. Every one is available impact rated.

The five types, side by side
Sliding glassThe Florida defaultFrenchHinged, fully glazedEntryThe front doorBi-foldFolds and stacksPivotStatement entrance
How it opensPanels slide on a trackPanels swing on hingesSingle swinging leafPanels fold and stack to one sideRotates on a central or offset pivot
How much of the opening clearsAbout halfNearly all of itOne doorwayAround 90%One wide leaf
Relative costLow to moderateModerateModerateHighHigh
Construction work involvedDirect replacementDirect replacementDirect replacementUsually direct, wider openings varyFrame and floor detail matter
Where it usually goesLiving room to patioBedroom or dining to patioFront and back entrancesWide openings, restaurants, high-end homesFront entrances that are meant to be seen

If the opening already has a slider and you like how the room works, replacing it like for like is almost always the sensible spend. Bi-fold and pivot are worth it when the opening is the point of the room — not as a default upgrade.

What to ask for, whatever type you choose

These three answers do not change with the operating type. They are what tells an approved unit from one that only looks like it, and they are worth checking on any quote — ours or anybody else’s.

Impact rating
Large Missile — TAS 201, 202 and 203
The Miami-Dade test protocol. Large Missile applies to every opening up to 30 feet above the ground, which for a house means all of them. The glass may crack in the test; what it must not do is let the missile through.
Design pressure (DP)
On the NOA, per model and per size
The pressure the unit is approved to take. It changes with the size of the opening and with the height of your home, so a single number for a whole product type would be meaningless. We give you the one for your openings with the quote.
Product approval
Miami-Dade Notice of Acceptance
The document that makes the unit legal here. It also dictates the anchoring: substrate, spacing and embedment. Installing outside that detail voids the approval no matter how good the window is.

Design pressures, U-factors and acoustic ratings belong to a specific model at a specific size and come from its Notice of Acceptance. We give you the ones for your openings with the quote.

The glass that goes in them

The type decides how the door opens. The glass decides what it does about heat, noise and fading, and the packages are the same four the windows are quoted with: laminated, laminated with Low-E, insulated laminated and acoustic laminated.

A door is where that choice is felt hardest, because a door is mostly glass. A slider is usually the largest single expanse of it in the house, so heat gain in August and traffic noise at night arrive through it before they arrive anywhere else — and the same package that is a refinement on a bedroom window is the difference between a room you use in the afternoon and one you do not. The four are compared side by side, with what each is for and what it costs relative to the others, on the impact windows page.

The manufacturers we work with

Every line we sell carries Miami-Dade approval. Which one suits your job depends on the openings and the budget, and we will tell you when the cheaper line is the better buy.

Choosing between the types

What about pocket doors, the ones that disappear into the wall?

They are the most impressive thing you can do to an opening and they are not a straight replacement. The wall the panels slide into has to be non-structural or be redesigned, so it is a remodelling job rather than a door swap. We supply them — we would rather tell you what it involves before you fall in love with the idea.

Should a French door swing in or out?

In-swing generally seals better against water, because wind pressure pushes the leaf onto its weatherstripping instead of away from it. Out-swing frees up interior space and needs non-removable hinge pins because the hinges are outside. It is a real decision, not a preference, and we will walk you through it at the estimate.

Is a flush threshold worth it?

It looks better and it is easier to walk over, and it is harder to seal against water, which usually shows up as a lower water penetration rating. We will show you both options rather than quietly quoting the one that is easier for us.

Does my garage door need to be impact rated too?

For the insurance credit, yes. Opening protection is all or nothing, and the garage door is the single largest opening in most homes. We do not sell garage doors, and we will still tell you this before you spend money on everything else.

Start with the opening you care about most

Tell us which door bothers you and we will quote that one first.

Get a free estimate