Box Gutter Expansion Joint Spacing

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.

Box gutter expansion joint spacing.

8 commercial box gutter expansion joint in kynar 500 steel use an expansion joint every 40 50 lineal feet. Thermal expansion is the tendency for a material to expand and contract when exposed to changes in temperature. Saw cut joints should be done within 4 to 12 hours after the concrete has been finished. Maximum joint spacing should be 24 to 36 times the thickness of the slab.

The depth shown in the calculations is at the upstream end. By reducing the downspout spacing to perhaps 35lf you could use a 6 gutter with 9 4 x6 downspouts in lieu of an 8 system. They are designed to expand and contract with at the box gutter joints without allowing cracks or leaks. Rdca has the custom drain expansion joint you need for your commercial gutter system.

Therefore any slope on the gutter will make the downstream end deeper or the flashing longer. When using joint groove for contraction joints the joint should be a minimum depth of thickness of the slab. And with our box gutter expansion joint vibration and expansion are not a problem. Available in 9 width by 12 33 and 50 lengths box gutter expansion joint comes with a 20 year warranty and the peace of mind you get with all marco quality products.

Expansion joint galv 24g 8 box kynar finish. Next we need to check spacing 335lf 8 downspouts 40 centers approximate. Required gutter slope 1 40 to 1 200 there is always some confusion as to how the slope affects the overall depth. It replaces the need to box the end of two adjoining gutters and also the need to form a bridge to span the boxed ends.

The expansion strip joint has been designed to install as an expansion joint for industrial box gutters. Expansion joints are a component in seamless rain gutter systems designed to protect the gutters from the effects of thermal expansion. Box gutter expansion joint from aztec are placed over the two box gutter joints. Contact us for a quote on a gutter expansion joint for your project.

Copper aluminum zinc and galvanized steel. In this example your maximum spacing of downspouts should be 40. There are a couple of options when it comes to expansion joints in gutters. Note that gutters require expansion joints at 40 centers.

The biggest benefit other than ease of installation is that in the case of a blocked downpipe any water can flow across to the adjoining gutter eliminating flooding. Joints should be spaced about 10 feet and a maximum of 15 feet. Recommended hanger spacing is 24 on centers.