Roof prep for new vent - Fiberglass RV


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Old 07-01-2014, 03:34 PM   #1
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Name: Lesa
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Roof prep for new vent

Wow...today's project is preparing the roof for my new Escape Hatch. ..it's easier scraping in the heat. I'm making progress although slow...'turtle steps' are better than no steps.

Any and all suggestions will be appreciated. Click image for larger version

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Old 07-01-2014, 04:35 PM   #2
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Do you have your roll of RV putty tape at the ready?
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Old 07-01-2014, 05:43 PM   #3
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Confused as to what we are looking at in the last photo - last one looks like a pebbled driveway.....

When I redid both my roof hatches I used the DAP Silicone Be Gone to get the load of silicone off the roof as well as off the escape hatch itself before I resealed it. I have tried other ways off getting off silicone but found the DAP to work the best. Let it sit on the escape hatch over night in a shaded cool spot and it worked really well, came off easy in the morning. Then used just extra fine steel wool to get the last of any sign off of the hatch trim itself .... just make sure you use enough of the DAP. Once I got the big chucks off the roof of the trailer - I used the DAP on it as well but only left it for an hour or so before scraping off with a plastic putty knife. Once I had it all off I used a 3M marine fiberglass compound on a power buffer to shine up the roof. Reinstalled the hatch with butyl tape and rivets using caps of the rivets on the roof side. Finished it off with a good waxing of the roof turned out well.

Cant find the photo of the escape hatch redone but here is one of the outside roof around the Fantastic fan, the escape hatch looks pretty well the same.
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Old 07-01-2014, 06:07 PM   #4
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Carol H - that pebbled look is the liquid nails or whatever the PO used to install a monster RV air conditioner over the hole where the original Escape Hatch lived. I feel like I have quite a job ahead of me. I'm scraping with a putty knife, plastic isn't touching this stuff and I now have battle scared knuckles. I'm getting a break as it has decided to rain. So my baby is wearing a blue tarp till its over.
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Old 07-01-2014, 06:13 PM   #5
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Bob - I ordered a new Escape Hatch as well as butyl tape and rivets from the Scamp factory. It should be here on Thursday. I don't know, after working today, if I can be ready to go by then...this is work! Lol
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Old 07-01-2014, 06:19 PM   #6
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Quote:
Originally Posted by SimplyLesa View Post
Carol H - that pebbled look is the liquid nails or whatever the PO used to install a monster RV air conditioner over the hole where the original Escape Hatch lived. I feel like I have quite a job ahead of me. I'm scraping with a putty knife, plastic isn't touching this stuff and I now have battle scared knuckles. I'm getting a break as it has decided to rain. So my baby is wearing a blue tarp till its over.
Well if it is Liquid Nails under their FAQ section they say

How To Remove LIQUID NAILS Adhesive Products from Building Materials
In general, LIQUID NAILS construction adhesive and caulk products can be scraped off when they are softened either by:
Heating above 140F with an electric heat gun or blow dryer
Coating the adhesive with petroleum jelly or mineral spirits for several hours to several days (NOTE: Mineral spirits are not recommended for tub surrounds, whether vinyl, plastic, painted or varnished.)
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Old 07-01-2014, 07:12 PM   #7
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Here's some of my pics in another thread:

Fiberglass Resin Recommendations?


Sent from my iPhone using Fiberglass RV
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Old 07-01-2014, 07:39 PM   #8
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Seth - I saw your thread a couple days ago. What a beautiful job. I certainly hope mine comes out well. I have never used fiberglass - I did buy some already.

I'm not sure what it really is..although in the nearly 100 degree AZ heat earlier it was easier to scrape off.
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Old 07-01-2014, 11:20 PM   #9
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One of the best odd tools I've picked up is a Dremel Oscillating Saw; put the scraper blade on that and it scrapes practically anything off - plus with different blades it does flush cuts in wood, very nice right angle cuts, etc. Cuts through old caulk and adhesives like butter. Many other brands these days, and Harbor Freight has a knock off Chinese version.

Multi-Max™

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Old 07-02-2014, 11:42 AM   #10
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Awesome! I'm really liking the look of that Dremel scraper tool Charlie! Thanks for posting that up. I'll be doing our vent pretty soon also. Keep up the good work!
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Old 07-03-2014, 05:41 PM   #11
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I'm finally making some progress with scraping!
And then the hail and rain came. ..my baby is covered as best I could.
And the UPS guy brought me a package....whooyah!

SimplyLesa.blogspot.com

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