Siliconizer Water Proofing Question...


Old 04-11-14, 09:03 AM
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Siliconizer Water Proofing Question...

I have a problem with a pergola that extends off my garage. The cross beams are two 2x10 sandwiched together, primed and sealed. They initially had a strip of tar tape along the top seam to prevent water entry between the boards.

After 2 months water started leaking through the bottom seam of the boards and ruining the finish. I am thinking of using Siliconizer roof sealant to prevent further leaking. My plan is to scrap off the tar tape and inject the Lanco Siliconizer into the crack and let it cure.

My question is, does anyone have any experience with this product? Will it adhere to the wood and cure? The crack is roughly 1/4" wide and I hope to inject it an inch deep.

Any thoughts?

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Old 04-11-14, 04:09 PM
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Roofing cement &/or tar paper would probably be a better choice.
Old 04-13-14, 04:14 AM
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aquafin has a decent product for this use [ no $ interest ] tho herculiner may be a more affordable alternate,,, imo, you need adhesion to a difficult surface AND elastomeric properties w/o using mechanical fasteners,,, but its your house & just my opinion

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