ᐅ Sealing a Garage to the Exterior Wall of a House

Created on: 7 Feb 2021 21:47
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Dude2000
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Dude2000
7 Feb 2021 21:47
We are possibly planning to build a garage on the east side, measuring 540 x 300 cm (213 x 118 inches), which will be placed directly against the house wall with about 2 cm (1 inch) of air gap. What options are there for sealing it both on top and on the sides? Drilling into the facade is not an option for me. I am concerned that mold could develop in that area.
Regards
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Nordlys
7 Feb 2021 21:58
If it forms, so what.
We installed a concrete garage from Rekers, measuring 6 by 3 meters (20 by 10 feet), against the unplastered Ytong wall on the east side. Then the wall was plastered. The remaining gap was sealed vertically with a permanently elastic joint using MS polymer sealant. A metal angle bracket was placed on top, bolted both into the wall and the garage roof, and additionally sealed with MS polymer. From below, moisture can still enter the gap, but that does not affect the wall or the concrete.
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Dude2000
7 Feb 2021 22:01
The building is already plastered, so I wanted to avoid mechanical fastening.
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Nordlys
7 Feb 2021 22:04
Then you glue the angle bracket directly without screws. MS Polymer adheres extremely well, is flexible, seawater-resistant, UV-resistant, and typically chemically very stable for a polymer. The bolts are actually unnecessary.
It sticks incredibly well to metal and to stone or concrete, also, by the way, to the paws, and can’t be removed by any big white giant anymore.