It didn't occur to me until they were gone, but I wish I'd asked my roofers what they used. I had my roof replaced a couple years ago in early March. Here in the Puget Sound area by than the winter rain has fallen off, but February and March still average about 6 inches each, so the schedule was "we'll do it when it isn't going to rain".
I got a call one evening saying they'd be over at 8 AM the next day, unless forecasts changed before then. That surprised me because all my weather sources were saying there was a high chance of rain after noon.
They showed up at 8 AM and promptly got to work removing the old roof. I'd expected them to work in sections, taking off the old roof in a section and then putting the new on up to the waterproof underlayment. (The shingles were due to be delivered that evening, so would have to wait until the next day). That way if the rain came earlier than expected they would be able to waterproof whatever section they were on in time.
Nope. They took it all off. They were confident that whoever was doing their forecasting was right that they had enough time to get the whole thing waterproof before the rain started.
As they started putting on the new stuff the clouds were darkening and it sure looked to me like rain was imminent. But they just kept going at the same pace.
As they put the last of the waterproof lining on and started coming off the roof, it started pouring. They packed up, told me they would be back tomorrow at 8 AM to put on the shingles, and left.
I got a call one evening saying they'd be over at 8 AM the next day, unless forecasts changed before then. That surprised me because all my weather sources were saying there was a high chance of rain after noon.
They showed up at 8 AM and promptly got to work removing the old roof. I'd expected them to work in sections, taking off the old roof in a section and then putting the new on up to the waterproof underlayment. (The shingles were due to be delivered that evening, so would have to wait until the next day). That way if the rain came earlier than expected they would be able to waterproof whatever section they were on in time.
Nope. They took it all off. They were confident that whoever was doing their forecasting was right that they had enough time to get the whole thing waterproof before the rain started.
As they started putting on the new stuff the clouds were darkening and it sure looked to me like rain was imminent. But they just kept going at the same pace.
As they put the last of the waterproof lining on and started coming off the roof, it started pouring. They packed up, told me they would be back tomorrow at 8 AM to put on the shingles, and left.