Ask This Old House host Kevin O’Connor travels to Portland, Oregon to learn how to protect homes from earthquakes.
SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse
Time: 1-2 days
Cost: $2000 and up
Skill Level: Expert – for licensed professionals only
Tools List for Earthquake Protection:
Palm nailer
Drill driver
Masonry drill
Pipe wrench
Shopping List:
Metal L brackets
Foundation plates
10 penny nails
Wood screws
Screw anchors
Automatic gas shut off valve
Pipe dope
Gas nipples
Museum putty
Zip ties
Water heater straps
Steps:
1. The work involved with a seismic retrofit often requires a consultation with an engineer, and any work involving gas must be done by a licensed professional. Consulting with a person who is licensed to do seismic retrofits can help identify key areas to work with in order to minimize damage.
2. The house can be secured to the foundation by securing metal L brackets into the rim joist and the sill plate at locations determined by the engineer with a palm nailer and 10 penny nails.
3. To connect the sill plate to the foundation, drill screw anchors into the anchor plates and the foundation, and wood screws through the anchor plates to the sill plate. Predrill the sill plate to prevent it from splitting.
4. To prevent gas from leaking into the house during an earthquake, an automatic gas shut off valve can be installed by a licensed gas fitter.
5. Shut off the gas to the meter.
6. Disconnect the gas pipes starting from the meter until you reach a level gas pipe.
7. Thread the gas shut off valve into the pipes using pipe dope and nipples.
8. Reconnect the remaining gas pipes to the meter and turn the gas back on. Check for any leaks in the new gas work.
9. Secure any valuables and nick knacks to the wall, shelves, and floor using museum putty and zip ties.
10. Secure the water heater to the surrounding walls using straps.
Resources:
While the specialty hardware that was used to secure the house to the foundation can be found at most home centers, determining the proper location for that hardware may require a consultation with an engineer.
The seismic gas shutoff valve installed was a Northridge Valve, which is manufactured by Seismic Safety Products (http://www.seismic-safety.com/). Gas work is extremely dangerous and should always be left to licensed professionals.
The museum putty used to secure valuables to the shelves is manufactured by QuakeHOLD (http://www.quakehold.com/emergency-management-emergency-preparedness-index.html).
Expert assistance with this project was provided by NW Seismic (https://www.nwseismic.com/) and Christopher Higgins.
About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
Follow This Old House and Ask This Old House:
Facebook: http://bit.ly/ThisOldHouseFB
Twitter: http://bit.ly/ThisOldHouseTwitter
http://bit.ly/AskTOHTwitter
Pinterest: http://bit.ly/ThisOldHousePinterest
Instagram: http://bit.ly/ThisOldHouseIG
http://bit.ly/AskTOHIG
Tumblr: http://bit.ly/ThisOldHouseTumblr
For more on This Old House and Ask This Old House, visit us at: http://bit.ly/ThisOldHouseWebsite
How to Retrofit a Home for an Earthquake | Ask This Old House
https://www.youtube.com/user/thisoldhouse/
David helps a NY couple find their second home on Oneida Lake. source
Brian and Mika help an engaged couple with their first big joint decision. source
This home is located in the neighborhood of Rocky Creek in Southwest Austin. The builder…
A family building a dovetail log cabin races to beat the elements. source
In this video, you will learn how to set up a photography studio at home…
View Comments
Too bad that town is full of liberals
I am confused can you not fit a flexx line on a gas meter in America?
I thought that the roof also needed to be strapped to the walls?
I live abut to Portland, what is his business called? How much is the general cost of a similar house like the one you featured?
WTF? 10d nails? You mean 10 penny nails, moron.
Some of the stuff that guy did looks like he went to home depot to get and cost less that $200 but they probably charged her several thousand
Seismic Retrofitting get's you a
15% Discount on QUAKE insurance.
http://www.EasyQuakeInsurance.com
503.297.4811
We need proof of securing the cripple walls and strapping home to foundation.
Masonry needs to be reinforced .
Love this show
Although my son's house in Florida supposedly meant all specs for hurricane protection, going through the house revealed that the contractor hadn't really done his job, nor had the bank inspectors. My son spent $300 on straps and brackets just to insure that the roof stayed on the house! Then he spent another $400 on other required upgrades to the windows and doors! Florida and the various counties and municipalities are notorious for being incompetent and corrupt. My hope for the people of Oregon is that the same situation isn't occurring there as well.
Portland is a commie shole that can burn in hell.. no one will miss it