Z-speed rated tires. â¦tires were all Z-speed rated. They were tested at some speed above 149 mph. In order to be more precise, tire manufacturers started testing at 168 mph (W-speed rating) and 186 mph (Y-speed rating). In the above picture you'll see 91W to the right of the size. The W of the 91W means the above Yokohamaâ¦.
I get this question many times and it is my opinion that the old felt should be removed and not covered over. I donât know why some roofers say âleave it onâ. I seem to me if you are going to the trouble of removing the shingles, you now have a chance to do repair on the roof deck by removing all the old felt.
I have had pretty much every test under the sun (HIV, MRIs, EMGs, EEGs, Sleep Studies, Western Blot, and the list goes on and on) and everything has come back normal except for 1 and I will go into that further down. Ok, so let's get on to my symptoms. At times I have this feeling of an inner tremor of sorts. It is real hard to explain to someone who hasn't felt it but I would correlate it to having an extreme feeling of a caffeine buzz. I actually feel my entire upper body tremor internally for a period of time and then as mysterious as it appears it just goes away.