ᐅ Compensating for insufficient parapet height using rigid foam insulation boards
Created on: 10 Jul 2017 08:53
J
joegamble
A friendly "hello!" to everyone!
We are currently in the shell construction phase. The building is using a Wienerberger Plan T-10 block. The window openings are mostly finished. According to the plans, the sill height should be 104.5 cm (41 inches) above the top of the foundation slab. The masonry has been built up to about 101 cm (40 inches), which corresponds to four courses of the Plan T-10 block. So, about 3 cm (1 inch) are still missing to reach the desired sill height. Our site manager suggested compensating for the missing height with a 20 mm (0.8 inch) Styrodur board.
My question is whether this is technically sound and if the Styrodur board might compress once the windowsill is installed and subjected to load (for example, if someone leans on it). If the board compresses, I am concerned that the windowsill could crack or break.
Am I just overthinking this, or is my concern justified?
Good luck
We are currently in the shell construction phase. The building is using a Wienerberger Plan T-10 block. The window openings are mostly finished. According to the plans, the sill height should be 104.5 cm (41 inches) above the top of the foundation slab. The masonry has been built up to about 101 cm (40 inches), which corresponds to four courses of the Plan T-10 block. So, about 3 cm (1 inch) are still missing to reach the desired sill height. Our site manager suggested compensating for the missing height with a 20 mm (0.8 inch) Styrodur board.
My question is whether this is technically sound and if the Styrodur board might compress once the windowsill is installed and subjected to load (for example, if someone leans on it). If the board compresses, I am concerned that the windowsill could crack or break.
Am I just overthinking this, or is my concern justified?
Good luck
B
Bieber081511 Jul 2017 08:3177.willo schrieb:
Why do people prefer a specific parapet height? You have to set a height anyway.
J
joegamble11 Jul 2017 14:07Bieber0815 schrieb:
You have to set some height after all . Exactly. We were asked which parapet height we wanted. Since there were no specific requirements, we freely chose a height.
joegamble schrieb:
Exactly. We were asked what railing height we wanted. Since there were no requirements, we chose the height freely. Unfortunately, it’s typical that no one considers that homeowners usually don’t think in terms of masonry units, and don't distinguish between raw and finished floors.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Nordlys schrieb:
But it does work with Styrodur. As a "Plan B," I suppose. But not just to keep ignoring the need to briefly explain some basic principles to the builder.https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/