Did you notice any difference in summer heat after switching? Sometimes synthetic makes the attic a bit warmer, depending on color and how much airflow you’ve got up there.
I did, actually. After swapping to synthetic (I used GAF Deck-Armor), the attic temp crept up a few degrees in July. Not crazy, but noticeable. Ended up adding R30 batts between the joists—helped with both the heat and that “ping” when it rains. The sound difference surprised me more than I expected. I agree, felt just doesn’t cut it here with our wind gusts, but I do miss how quiet it was during storms.
I hear you on missing the quiet—my old felt underlayment used to muffle storms a lot better too. After I switched to synthetic (I went with Titanium), it was like every raindrop suddenly had a megaphone. Did you notice any difference in how your AC runs since the attic got warmer? I’ve been wondering if my bills ticked up a bit, but it’s hard to tell with these crazy summers.
I’ve managed a few buildings where we swapped out the old felt for synthetic underlayment, and I swear, you could tell right away when it rained. Used to be you barely noticed storms—now it’s like living inside a drum. As for the AC, yeah, there was a jump in cooling costs once the attic started trapping more heat. Hard to say how much is from the underlayment versus just brutal summers lately, but our bills definitely edged up after that switch. Wouldn’t mind the trade-off if it meant less maintenance, but the noise gets old fast.
Used to be you barely noticed storms—now it’s like living inside a drum.
That’s wild, I’ve heard the same complaint about synthetic underlayment making rain sound a lot louder. Did you notice if the insulation in the attic changed at all during the swap? Sometimes contractors move stuff around and don’t always put it back right, which could make the noise and heat issues worse. Also, did you try any soundproofing tricks after the fact, or was it just a “live with it” situation? I’m weighing options for a building with a similar setup and can’t decide if the trade-off is worth it…
I’ve run into this a lot—synthetic underlayment can definitely amplify rain noise, especially if the attic insulation isn’t put back properly or gets compressed. Did you notice any difference in summer heat after the swap? Sometimes the sound is just the tip of the iceberg with these materials...
