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Flat Roof Options

 
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Old 03-20-2020, 06:19 AM   #1
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Flat Roof Options


This flat roof has a small leak in it. Roof top deck...3rd floor.

I pulled up one board just to inspect the roof and it generally looks to be in ok condition. My guess is that somewhere the roofing membrane is cracked.

My plan is to pull up all boards, inspect the sleepers and then apply a new coat over the roof to seal it up.

My question is what type of sealant should I be putting on this roof? I'm in Canada (Toronto). I'm unsure if I should be putting a rubber or tar type product.

Couple pictures of what it looks like under as well as a roof that is nearby which is the same material.

Thanks all! Very much appreciate the help.
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Old 03-20-2020, 10:37 AM   #2
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Re: Flat Roof Options


Replace the roof, there is no coating that cracked old Built Up. Also if ANY moisture is still in the existing roof your coating will blister and fail

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Old 03-22-2020, 01:11 PM   #3
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Re: Flat Roof Options


Your local roofing supply house should be able to cut you a piece of EPDM that will fit this job so you do not have to buy a 5 x 10 roll.
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Old 03-24-2020, 12:37 PM   #4
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Re: Flat Roof Options


Thanks all for your feedback. I might get yelled at but what about this approach. I'm really look to get another few years out of the roof before I drop thousands to repalce.

I've been cleaning the gravel off and generally seems in ok shape. Some low spots I'll patch. Then I was going to get a piece of EPDM the size of the deck...15x15 and drap it over the sleepers so it will act as a drain. I have good eve's to catch the water. That way my thinking is 98% of the water will be caught by the EPDM and drained down to the eves and anything that get's below the roof is still mostly leak free.

I know this is a hack but I guess the question is how bad of a hack is it.
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Old 03-24-2020, 02:03 PM   #5
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Re: Flat Roof Options


Quote:
Originally Posted by mattypV50 View Post
Thanks all for your feedback. I might get yelled at but what about this approach. I'm really look to get another few years out of the roof before I drop thousands to repalce.

I've been cleaning the gravel off and generally seems in ok shape. Some low spots I'll patch. Then I was going to get a piece of EPDM the size of the deck...15x15 and drap it over the sleepers so it will act as a drain. I have good eve's to catch the water. That way my thinking is 98% of the water will be caught by the EPDM and drained down to the eves and anything that get's below the roof is still mostly leak free.

I know this is a hack but I guess the question is how bad of a hack is it.
If you dont know how to do what you are proposing then call an roofer with some verifiable carpentry expierence.This forum is for professional contractors. Not homeowners who dont "want to drop thousands into their roof"
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Old 03-24-2020, 02:07 PM   #6
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Re: Flat Roof Options


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