opinions on paint on product for low-slope roof?
I am working on a low slope roof (1:12) from which I have pulled 700lbs/square over 2×4 framing. I am putting on a new deck and sistering on to make 2x6s (and getting rid of scupper drainage and using fascia mounted gutters.) I have two questions. First, I have read about gaco roof and seal-o-flex. Any suggestions for one vs. the other? I am more of a cabinetmaker than roofer so have not used either. Assuming seal-o-flex is not ridiculously more expensive than Gacoroof, the price is not a huge difference as I am only roofing 3 squares. I am more interested in durability and the roof is not visible from the ground. Second, how should I build up the rake edges so water will not drip off the sides? I have bought copper drip edges but feel nevertheless I should build it up. I am worried about the transition. Can I just rip a 1.5 x3/8 piece of redwood and put it under the drip edge and paint over part of it? I will also need to re-roof a flat garage and will hopefully use the same product. We are in a part of California that gets rain, and sun but no snow.
Thanks
Robman
Replies
Never used either product,
but have heard seal-o-flex praised. But it's still a roof in a can and I've not seen many paint on roof products that last more than a few years without some maintainance.
Use "gravel stop" drip edge on the rakes to keep water from going over the edge.
Thanks or the input, I too am not a huge fan of the idea of a paint on roof but tar and gravel and modified bitumen roofs are heavy, nasty for the environment, and don't seem to last very long. Gaco roof claims to be a 50 year product and is light (which is important in earthquake country--the house is a half mile from the Hayward Fault). I would prefer a metal roof but price and the slope seem to be an issue (it is 1 in 12). The weird thing about the seal o flex is there appears to be no warranty of how long it will last. I will be painting over a plywood deck and have no idea of life expectancy.
Thanks
Rob
tar and gravel and modified bitumen roofs are heavy, nasty for the environment, and don't seem to last very long.
Look into EPDM. It''s fairly DIY friendly and should last 20 years minimum. I'd be pretty skeptical of the 50 yr claim. I bet they've only been making it about 5-10 years.
only 5-10 years?
You mean the paintable EPDM?
I am a big fan of EPDM, but have never seen a paintable or liqwuid roof that is worth much, especially with curbs and scuppers and low slopes with no clear drainage like this.
'course, it'll only leak when it rains.
You mean the paintable EPDM?
Negatory. The rollable EPDM.