Gutter Expansion Joint Spacing

In this example your maximum spacing of downspouts should be 40.

Gutter expansion joint spacing.

Sidewalk that abuts curb or gutter shall have joints that match the curb or gutter joints. Expansion joints may also be required at changes in gutter width or depth at corners and at end. Expansion joints in copper gutters must be provided to allow for the natural expansion and contraction of copper caused by thermal changes. Next we need to check spacing 335lf 8 downspouts 40 centers approximate.

In general long straight runs should have joints spaced a maximum of 48 feet apart. Note that gutters require expansion joints at 40 centers. The space between joints in curbs and gutters space between contraction joints or between contraction and expansion joints shall not exceed ten feet. Expansion joint galv 24g 8 box kynar finish.

Most new box gutters these days are made of either copper or stainless steel although many old box gutters were made of terne coated steel. The space between sidewalk joints shall not exceed 125 of the sidewalk width for example. Expansion joints are a component in seamless rain gutter systems designed to protect the gutters from the effects of thermal expansion. Thermal expansion is the tendency for a material to expand and contract when exposed to changes in temperature.

Recommended hanger spacing is 24 on centers. There are a couple of options when it comes to expansion joints in gutters. The spacing of the expansion joints depends on the size of the gutter and thickness of the metal but a general rule is that an expansion joint should be included about every thirty feet.