What is a double top plate
A second top plate, also known as a “double plate” or “very top plate” is applied in the field to lock together intersecting walls..
What benefit will retrofitting a house have
By lowering the amount of energy you use in your home daily, retrofitting can not only save you energy, but also save money on your electricity and gas bills.
Do you need cripple studs
There is no code requirement that I am aware of to use cripple studs if they are not needed. I put in two headers in my house, both are steel beams, neither has any cripple studs as the headers are tight against the existing wood double top plate.
How much does brace and bolt cost
A brace-and-bolt retrofit typically costs between $3,000 and $7,000 and helps to prevent the house from toppling off its foundation during strong shaking. The CEA offers premium discounts of up to 20 percent on earthquake insurance policies for houses with qualifying retrofits. Eligible homeowners have until Nov.
What does a cripple wall look like
A cripple wall is a wooden wall between the foundation and the first floor of a wood frame house. This wooden wall is usually less than a full story high and runs between the foundation and the first floor. Often it looks like it’s half the height of a regular wall, and it is part of a basement.
Do all houses have cripple walls
Almost all Bay Area houses built before 1940 (and many built more recently) have cripple walls. Cripple walls are the short wood stud walls that enclose a crawl space under the first floor. Non-retrofitted or “unbraced” cripple walls are known to be vulnerable to damage and even collapse in earthquakes. 3.
How long does it take to retrofit a house
The average time for a complete retrofit is a week. Larger homes or homes where there is need to open and re-close finished walls for work access will take longer. It is rare to have a retrofit project take more than two weeks. One of the most common homeowner complaints about contractors is that a job takes too long.
What is a cripple joint
In carpentry, the term “cripple” refers to a special-purpose wall stud or roof rafter. … Cripple studs are non-structural but provide a nailing base for siding or interior wall coverings. Spaced 16 or 24 inches on center, they carry the regular wall stud layout across the framed opening.
How do you brace a cripple wall
Cripple walls are braced by nailing plywood sheathing to the inside of the walls that surround the crawlspace. A licensed contractor can complete a retrofit for houses with cripple walls shorter than four feet, or a skilled homeowner can do it, following a standard plan set.
What is the purpose of a cripple wall
Wooden floors and stud walls are sometimes built on top of an exterior foundation to support a house and create a crawl space. These are called cripple walls and they carry the weight of the house. During an earthquake, these walls can collapse if they are not braced to resist horizontal movement.
Is earthquake retrofitting effective
Properly retrofitted houses are made stronger against earthquake shaking and damage. This means your house is safer, and you’ve reduced the chance of injury or even death in a devastating earthquake.
How can you make your house earthquake proof
How To Make Your House Earthquake ResistantConduct a Home Inspection. … Keep the Foundation Moisture Constant. … Brace the Cripple walls with Plywood. … Avoid Unreinforced Masonry Walls. … Use Simpler reinforcement techniques. … Use Flexible-kind of Utilities. … Avoid Furniture, Fixtures and Decorations Near Bed.Apr 28, 2015
What is a cripple
(Entry 1 of 3) 1a sometimes offensive : a lame or partly disabled person or animal. b : one that is disabled or deficient in a specified manner a social cripple. 2 : something flawed or imperfect.
How do you reinforce cripple walls
To brace a cripple wall, add horizontal or diagonal blocking between the vertical studs at the top and bottom of the cripple wall. Plywood can also be anchored to the interior face of the cripple wall, as well as to the sill plate below the foundation to increase its strength. Effectiveness: Somewhat effective.
How much does it cost to retrofit a foundation
The basic fix involves bolting or anchoring the house to the foundation, and possibly adding plywood around the flimsy crawl space. In Southern California, the typical cost for a bolt-only retrofit is about $3,000 to $3,500; the median cost for a house that also needs plywood is $3,900.
Are cripple studs load bearing
Cripple Studs – short studs installed above a header or below a window sill or saddle. In addition to their load bearing function, cripple studs maintain the uniform spacing of the wall studs upon which the interior and exterior wall coverings are attached. …
What is a braced wall panel
Braced Wall Panel (R602.10.1) – A braced wall panel is a section of a braced wall line that is. braced with a code-compliant bracing method (e.g., let-in brace, a wood structural panel, or. other bracing methods) (See Figure 4). Braced wall panels must meet minimum width.
What is a short wall called
From Wikipedia, the free encyclopedia. A pony wall is a short wall. In different circumstances, it may refer to: a half wall that only extends partway from floor to ceiling, without supporting anything. a stem wall, a concrete wall that extends from the foundation slab to the cripple wall or floor joists.
What is cripple wall construction
Cripple walls are the short wood stud walls that enclose a crawl space under the first floor. Cripple walls are used to support a dwelling between the concrete foundation and the floor of a dwelling and to elevate the dwelling above ground to allow access to the utility lines or to level a dwelling built on a slope.