Concrete Patio Against Siding

Wrcla wants 2 clearance to prevent wicking.

Concrete patio against siding.

For this specific situation i would rather see the concrete poured against the cement siding which goes all the way down to the bottom. Sometimes with the siding trim and door out of the way a flashing can be slid in between the house and the concrete. Ca code certainly calls for 2 clearance to concrete patio with stucco. It is unknown what type of water insect access is available occurring under the siding below the surface level of the cement.

Large roof overhangs can provide protection in some cases. If the concrete is touching the cedar then it is not likely there is any drainage for the wrb and the cedar. I would advise locating a vinyl siding company and getting them to break some scraps that they ve laying around about an inch much higher than the concrete will be poured and as far out from the house as the scraps will go. Other times an l flashing over the surface of the concrete and work but keep in mind this can also trap moisture behind the the concrete.

Concrete and masonry foundation walls shall extend above the finished grade adjacent to the foundation at all points a minimum of 4 inches 102 mm. I used crushed gravel as a base for patio. Show activity on this post. Editorial advisor mike guertin replies.

You are right to be concerned about placing the new concrete step in direct contact with the fiber cement trim or most siding and trim materials for that matter. The best thing to do and it s the code in va is to put aluminum coil in between the wood and the concrete. Concrete absorbs and holds water and most siding and trim materials including fiber cement aren t rated for contact with concrete. Any water would run all the way down.

I would be more interested in what the manufacturer said about this detail. Al mollitor sharon ma. It can be cork 1 2 thick by 4 tall set to the wall with short pins to hold it while pouring. Observed non standard installation of concrete on the patio see photo this section.

If you must do it try to install some serious flashing between the wood and concrete such as ice and water barrier protected by aluminum that goes well below any wood and up under the siding. Typically when i pour concrete against a house foundation never pour concrete against any siding imho it invites trouble later i have an expansion joint set to the house. A concrete patio is a finished grade. If it were flashed with 1 2 inch gap like shown in the text book water could run below the flashing and on to raw wood.

I d like the patio to get as close as possible to the house but am realizing that it may not be good to put the pavers right up against the siding.