The depth shown in the calculations is at the upstream end.
Box gutter expansion joint spacing.
Box gutter expansion joint from aztec are placed over the two box gutter joints.
Therefore any slope on the gutter will make the downstream end deeper or the flashing longer.
Expansion joint galv 24g 8 box kynar finish.
Next we need to check spacing 335lf 8 downspouts 40 centers approximate.
Expansion joints are a component in seamless rain gutter systems designed to protect the gutters from the effects of thermal expansion.
Rdca has the custom drain expansion joint you need for your commercial gutter system.
Contact us for a quote on a gutter expansion joint for your project.
Thermal expansion is the tendency for a material to expand and contract when exposed to changes in temperature.
When using joint groove for contraction joints the joint should be a minimum depth of thickness of the slab.
There are a couple of options when it comes to expansion joints in gutters.
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.
And with our box gutter expansion joint vibration and expansion are not a problem.
Copper aluminum zinc and galvanized steel.
Saw cut joints should be done within 4 to 12 hours after the concrete has been finished.
Maximum allowable length between expansion joints with one end fixed.
Aztec box gutter expansion joints are made from our signature durable rubber epdm with soft aluminum strips for fixing onto box gutters.
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.
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.
In this example your maximum spacing of downspouts should be 40.
Joints should be spaced about 10 feet and a maximum of 15 feet.
Maximum joint spacing should be 24 to 36 times the thickness of the slab.
Note that gutters require expansion joints at 40 centers.
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.
Required gutter slope 1 40 to 1 200 there is always some confusion as to how the slope affects the overall depth.
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.
Recommended hanger spacing is 24 on centers.
They are designed to expand and contract with at the box gutter joints without allowing cracks or leaks.
