Removing old roof caulk?

Heat gun on low, use a plastic putty knife.

Some use an oscillating tool.

If the caulk is solid, just remove the loose sections.

That job sucks. Just redid my roof and replaced vents. I use a sharp knife. Tried a push razor last time. I like the knife better. My knees and wrists are wasted afterwards

You only need to get 80-90% of the stuff off. The remaining caulk is really stuck, and the new caulk will stick to it. The bulkk of the caulk comes off pretty easy. Let the heat gun do its thing.

Just put eternabond tape over the old caulk. Costs a bit more but worth the long term benefits and the reduction in labor.

Until you need to remove said eternabond. Are you removing dicor?

mellow wrote:
Until you need to remove said eternabond. Are you removing dicor?

I'll be removing whatever caulk Lance used in 2000 and some Dicor

Not sure if it really exists or not but I think I recall talking to my RV repair shop when they resealed my roof that they use some sort of chemical that helps to soften the sealant so it is easier to remove. Perhaps others have more knowledge about it. I've only replaced the sealant around the fridge vent and it took me at least two hours to scrape everything clean right down to the fiberglass and as others said, my back and knees where done for.

It was after this valiant DIY effort that I quickly summarized that I was better working two hours at my job in order to pay someone to do the same work in about 30 minutes. When I went to reseal the roof, it was a no-brainer, I payed someone to do it and was happy that I did.

Lance used parbond. It turned orange/brown on my TC. I used a flexible metal putty knife and a heat gun. Sometimes it was easier to heat the knife to cut through the caulking. Cleaned up the residue with mineral spirits and rags. Keep the soaked rags away from the heat gun. Molten caulk can leave you with blisters.

buy some Knee pads at the hardware store before you start, keeps the ol knees feeliing much better

Thanks Everyone for the answers, I got a price of about $550 to redo the roof and the place is 2 hours away

Being a Plumber I know about knee pain seems I spend 1/2 my day on my knees, I have 3 sets of knee pads