Dynamat / Peal n Seal... yes or no

Don't let the alarmist's talk you out of your money 170 is not 200 and if it's real hot crack a window , that said yes look for a butyl based product I used a peel and stick moisture barrier that is readily available here , It is about 2/3 the thickness of auto products but cost me $16 for a 18" x 50' =75sq' roll so for 32 bucks I did the inside of the doors , quarters and trunk area of my fastback once and the passenger area twice . If you use a spray adhesive or the contact primer we use with it in construction and do it on a hot day so it molds easier you can get it in with little or no air behind it and the lack of a foil layer is a non issue and may even be a blessing electrically with older cars like ours . Don't let the Canadian address fool you it gets just as hot here on the west coast as anywhere else I've lived in North America and I've never smelled any "hot tar smell " and as for sound well with TTi headers and a 2.5" H pipe exhaust I couldn't hear myself think before , now I can here the gal beside me talking .

Just my 2cents it's easy to spend other peoples money and even easier when you wasted your own eh, misery sure loves company