Brick veneer is not holding up your house
This is the most consequential misunderstanding in North Texas residential construction, and correcting it changes how a buyer reads every crack they see.
The controlling reference is the Brick Industry Association's Technical Notes on Brick Construction. Technical Note 28, Brick Veneer/Wood Stud Walls, states it plainly: "An anchored masonry veneer is attached to and laterally supported by its backing through anchors and supported vertically by the foundation."
Unpack that. The house is a wood-framed structure. The brick is a single wythe — one brick thick — standing on a ledge cast into the slab and tied back to the studs with metal anchors. It carries its own weight to the foundation and nothing else — no floor, no roof, no wall.
Solid masonry works differently in every respect that matters here. It carries building loads; veneer carries only itself. It resists wind through its own mass; veneer resists wind entirely through ties to the wood-stud backing, which is why failed ties, not cracks, are the serious veneer failure. And solid masonry is a barrier wall that absorbs water and dries; veneer is a drainage wall, where water gets in by design and drains back out.
The consequence is direct. A crack in brick veneer is a crack in a cladding, not in the structure. It matters for two reasons: it is evidence about movement behind it, and it is a water entry path. It is almost never itself a structural failure.
The drainage wall: air space, flashing and weeps
Brick is not waterproof, and the wall was never designed on the assumption that it would be. Technical Note 28 describes what happens instead: "the air space behind the brick wythe permits water that penetrates the veneer to drain down the back of the brickwork and be channeled out via flashing and weeps without wetting the rest of the wall assembly."
The air space is the drainage path, a "minimum 1 in." cavity. The flashing belongs "at all points where air space is interrupted," including "beneath the first course of brickwork above final grade; at points of support, such as shelf angles, lintels and structural floors; at wall and roof intersections; at the heads, jambs and sills of exterior window and door openings." Base flashing must extend at least 8 in. vertically and "extend to or beyond face of brickwork." That last phrase does real work: flashing cut short behind the brick face collects water and delivers it back into the wall. It is concealed, it is not rare, and it is one reason weeps sometimes fail to weep.
The weeps sit in the mortar joints immediately above all flashing, at a minimum diameter of 3/16 in., with open head joints no more than 24 in. on centre and wick or tube weeps no more than 16 in. on centre.
What goes wrong: weeps omitted, most often above lintels and windows; mortared shut during construction or repointing; buried by raised grade, flowerbeds, mulch or added stone skirting, very common in DFW where landscaping is redone repeatedly; caulked or painted shut by a homeowner who assumed they were mistakes; or defeated by mortar bridging, where droppings fill the air space and carry water across to the sheathing.
Weep holes, and what TREC actually requires
Almost every consumer page says the same thing: missing weep holes are a defect. Under the Texas standards that is wrong, and TREC has answered directly.
Asked whether the absence of weep holes along the bottom course and above steel lintels must be reported as deficient, TREC's published answer is: "Lack of weep holes is only required to be reported as a deficiency when there is visible evidence of water penetration or a structural issue that may be related to the lack of weep holes."
The absence of weeps is conditional, not automatic, and the reason sits at the heart of how the system works. TREC states elsewhere that "the standards of practice are not based on a specific requirement such as those promulgated by model building codes." They are not a code checklist, and an older house built before weeps were routine is not defective for lacking them. A house with no weeps and efflorescence, staining, or damp interior finishes at the wall base is a different matter — that is the visible evidence TREC's answer describes.
The practical check needs no ladder: walk the base course and the courses above windows and doors, look for open head joints or tube wicks at regular spacing, and confirm they are above grade and not painted, caulked or mortared over.
Ties and lintels: the two concealed systems
Ties, and the North Texas answer
The ties are hidden inside the wall. Technical Note 28 sets the general rule: "Do not space anchors more than 32 in. horizontally and 24 in. [IRC] or 25 in. [IBC] vertically," and "provide at least one anchor for each 2.67 sq ft of wall area."
North Texas adds its own rule. The NCTCOG 2024 IRC Regional Amendments, approved March 2025 and adopted region-wide, add Section R703.8.4.1.2: "In stud framed exterior walls, all ties may be anchored to studs as follows: 1. When studs are 16 in o.c., stud ties shall be spaced no further apart than 24 in vertically starting approximately 12 in from the foundation; or 2. When studs are 24 in o.c., stud ties shall be spaced no further apart than 16 in vertically starting approximately 8 in from the foundation." It lets ties be fastened into studs rather than onto a generic grid, with vertical spacing linked to stud spacing.
Ties get omitted, spaced too far apart, nailed to sheathing rather than studs, or corroded through in the cavity. Failed ties are the mechanism behind bulging, leaning or bowing veneer — the wall separating from the house rather than cracking. Because ties are concealed, the only evidence is the plane of the wall: sight down a long brick run for bulges, and check whether the veneer has pulled away from window trim or the soffit.
Lintels and rust jacking
Brick above a window, door or garage opening is carried by a steel angle lintel, which Technical Note 28 requires to be "shop coated with a rust-inhibitive paint, made of corrosion resistant steel or treated with a coating to provide corrosion resistance," with "at least 4 in. bearing at each end."
Steel corrodes to iron oxide, which occupies more volume than the steel it replaced. Confined between masonry courses, that expansion pushes the brick above upward and outward. A specific expansion multiple is quoted for this everywhere; it is not printed here, because it traces to no authoritative document. The signature is recognisable anyway: a horizontal opening in the mortar joint directly above the lintel, often widening toward mid-span; displaced brick above; rust staining down the face; and delaminating steel under failed paint. Repainting intact steel is maintenance; replacing a corroded lintel means shoring and rebuilding the masonry above it.
Veneer cracking versus foundation movement
Brick veneer is a rigid, brittle cladding on a flexible house sitting on expansive clay, so every source of differential movement shows up in the brick — the least forgiving material in the assembly. Veneer cracks are evidence, but of several different things, and the pattern separates them.
- Stair-step cracks following mortar joints and widening upward from a corner — differential vertical movement, typically settlement or heave there. Widening downward points at movement at the base, or edge lift.
- A horizontal crack at a lintel line — lintel deflection or rust jacking. Frequently not a foundation issue, and routinely sold as one.
- A horizontal crack mid-wall with in-or-out displacement — possible tie failure or lateral movement, the more serious pattern.
- Hairline cracking in the mortar only, no offset — often shrinkage, thermal movement of the veneer itself, or seasonal cycling. Cracks that visibly open and close with the seasons are expansive soil cycling, the region's baseline behaviour.
- Brick separating from window frames or soffit, doors binding inside, floors out of level — corroboration, which is what turns a brick crack into a foundation question.
One line in Technical Note 28 undercuts a great deal of scare marketing. BIA states that provisions for movement — bond breaks, expansion joints and joint reinforcement — are "not usually required for one- and two-family dwellings." Residential veneer is normally built without the movement joints commercial masonry has, which is precisely why it cracks at the corners of windows and doors. Cracking at opening corners is the expected stress concentration location, not automatically a foundation verdict.
You will also be handed a crack width threshold, usually a quarter inch, as though it settled the question. None appears here, because no version in circulation traces to an authoritative source. Pattern, location, displacement and change over time tell you more than width — and a dated photograph with a measurement in frame, repeated after a wet-dry cycle, answers the only question that matters: is it moving?
What an inspector can determine, and what to do
Under 22 TAC §535.228(f) the inspector shall report evidence of water penetration and shall report as deficient "deficiencies related to structural performance or water penetration" and deficiencies in "claddings, water resistant materials, flashing ... windows and components." Separately, §535.228(a) requires a written opinion as to the performance of the foundation — formed from a limited visual survey, not an engineering analysis. What the inspector cannot do is more instructive. Ties, flashing and the air space are concealed, and §535.227 excludes what is "buried, hidden, latent, or concealed." The inspection is also "not intended to be a comprehensive investigation or exploratory probe to determine the cause or effect of deficiencies." And no single visit shows whether a crack is active.
That sorts the findings:
- Weeps blocked, painted, mortared or buried — budget for it. Clearing weeps and pulling beds back below the base course is cheap.
- Weeps absent, no water evidence — monitor. Absence alone is not a required deficiency.
- Rust staining or a hairline opening at a lintel, no displacement — monitor and budget.
- Displaced brick above a lintel, or delaminating steel — get it evaluated by a masonry contractor.
- Hairline stair-step cracking, no interior corroboration, no offset — monitor. Photograph and date it, then re-check after a wet-dry cycle. This is the most common brick finding in North Texas and usually needs nothing done this year.
- Stair-step cracking with interior corroboration, or bulging veneer — get it evaluated before closing.
For a structural question the right party is a Texas-licensed professional engineer, not a free "foundation inspection" from a company whose revenue comes from installing piers. That is not a slur on contractors; it is a description of an incentive. And tuckpointing is cosmetic — if the movement continues the repair cracks again, and repointing before a sale without addressing the cause is a concealment problem as much as a repair.
Common questions
Does a crack in the brick mean I have a foundation problem?
Usually not by itself. Brick veneer is a rigid cladding hung on a flexible house, so it cracks at the least forgiving point in the assembly, and the corners of windows and doors are the expected stress concentration. What turns a brick crack into a foundation question is corroboration inside the house: doors and windows binding, floors out of level, drywall cracking at the same corners, and brick separating from trim or soffit. Pattern, displacement and change over time tell you more than width.
Should weep holes be sealed or filled?
No, and sealing them is one of the most common well-intentioned mistakes a homeowner makes. Brick veneer is a drainage wall: water penetrates the brick by design, drains down the back of the wythe, lands on flashing, and exits through the weeps. Blocking them traps water inside the cavity against the sheathing. Weeps are required to be a minimum of 3/16 inch, located in the mortar joints immediately above all flashing, with open head joints spaced no more than 24 inches apart.
Is missing weep holes an inspection defect in Texas?
Only conditionally. TREC's published answer is that lack of weep holes "is only required to be reported as a deficiency when there is visible evidence of water penetration or a structural issue that may be related to the lack of weep holes." The standards of practice are not a building code checklist, so an older house without weeps is not automatically deficient. An older house without weeps that also shows staining, efflorescence or damp interior finishes at the wall base is a different matter.
What causes the horizontal crack above my garage door?
Most often the steel lintel, not the foundation. A lintel carries the brick over the opening, and as the exposed steel corrodes it expands within the wall and lifts the course above it, producing a horizontal opening in the mortar joint directly above the lintel, often with rust staining bleeding down the brick. Wide openings like garage doors can also show simple downward deflection of the lintel. Either way the assessment is a masonry question, and repainting intact steel early is far cheaper than replacing corroded steel later.
How far apart should brick ties be in North Texas?
The region has its own rule. NCTCOG's 2024 IRC regional amendment R703.8.4.1.2 allows ties to be anchored to studs, spaced no further apart than 24 inches vertically where studs are 16 inches on centre, starting about 12 inches from the foundation, or no further apart than 16 inches vertically where studs are 24 inches on centre, starting about 8 inches up. The Brick Industry Association's general guidance is no more than 32 inches horizontally and one anchor per 2.67 square feet of wall.
My brick wall is bulging outward. How urgent is that?
Urgent. Bulging, leaning or out-of-plane veneer points at failed or missing ties, which are the only thing holding the wythe against the house laterally. Unlike cracking, this is a stability and safety issue rather than a cosmetic one, and the ties themselves are entirely concealed, so the plane of the wall is the only evidence available. Have it evaluated before closing, and treat the area below it as a hazard in the meantime.