sewer pipe through wall | Ask Mason Knowles - SPF Consultant | Spray Foam Technical Questions and Answers

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Clayton Phillis Posted: Sep 07, 2008 11:23 AM	sewer pipe through wall Will spray foam work for a leak that I have in my basement wall? Basically we got 5 inches of rain recently and where my pvc sewer pipe exits through the concrete wall, in the basement, water was pouring in. The pvc pipe goes thought the wall in a corrugated pipe sleeve and the grout that was used broke away.
mason Posted: Sep 07, 2008 12:35 PM	Closed cell SPF can be used as damproofing material but should not be used as a waterproofing material. While it can slow or stop a leak, hydrostatic pressure may build up crushing the foam cells. Better to seal the leak with a urethane type caulking or asphalt waterproofing materials. Foam can be used to fill the space so long as it is not the main waterproofing material.
Clayton Phillis Posted: Sep 07, 2008 02:10 PM	Thanks, I ended up using hydraulic concrete.

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Clayton Phillis

Posted: Sep 07, 2008 11:23 AM

sewer pipe through wall

Will spray foam work for a leak that I have in my basement wall? Basically we got 5 inches of rain recently and where my pvc sewer pipe exits through the concrete wall, in the basement, water was pouring in. The pvc pipe goes thought the wall in a corrugated pipe sleeve and the grout that was used broke away.

mason

Posted: Sep 07, 2008 12:35 PM

Closed cell SPF can be used as damproofing material but should not be used as a waterproofing material. While it can slow or stop a leak, hydrostatic pressure may build up crushing the foam cells. Better to seal the leak with a urethane type caulking or asphalt waterproofing materials.

Foam can be used to fill the space so long as it is not the main waterproofing material.

Clayton Phillis

Posted: Sep 07, 2008 02:10 PM

Thanks, I ended up using hydraulic concrete.

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