Things to Remember When Installing Foundation Bolts Things to Remember When Installing Foundation Bolts
When you want to secure a new piece of concrete to the original building, the best way of doing this is to use foundation bolts. These are designed to create a connection between the foundations of the home, and the concrete foundations of the new installation, whether that is a patio or an extension. In order to get the best from your use of foundation bolts, there are a number of things that you should remember. These tips will help you to do the job quickly, and in good time, but also allow you to prevent silly mistakes which could mean that your work has to be demolished so the foundations can be repaired.
Check Code Requirements
Before you even start digging your foundation, you will have to make sure that you know exactly what your local building code requires you to do. Installing foundation bolts is something which is often legislated, so that you have to know what type of foundations bolts you can use, and where. Some local authorities are more strict on this than others, but even if your authority is very lax, you will still need to conform to code. Get a permit before you start, and have a buildings inspector check your work before you complete the installation, so that you don't make any costly mistakes.
Types of Bolts
Installation buildings codes will often refer you to a particular type or size of foundation bolts. These can be the mechanical wedge anchor, which is installed by drilling holes into the concrete, or the epoxy bolts, which are secured into the drilled hole using glue. The wedge anchor has to be expanded after installation, so make sure that you remember this when you are fitting it. You may find that you need to purchase the bolt in a particular size or style, for example to resist earthquakes, or where the concrete is very poor.
Foundation Bolts Penetration
One of the things which the code will insist upon is the extent to which the bolt is inserted into the concrete. Some authorities require that the bolt go in to a depth of 7 inches at least, while others suggest that a smaller penetration into the concrete can be allowed if you include a mud sill above the concrete. However, you need to ensure that the mud sill is strong enough to support the weight that will be placed upon it.
Problems with Bolts
It is also a good idea to know what to do if you find that there are problems with the foundation bolts. Common problems such as rusting may result in your having to get the bolt back out of the concrete, and add a new one. Problems occur such as a recessed bolt, which means that the bolt is actually below the tip of the concrete. This will result in you having to dig into the concrete in order to get the nuts onto the end of the bolt. It is sometimes considered to be against code to dig into the foundation like this, and you may have to replace the bolt.