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.
How to Wash Felt. Felt is a great fabric to work with for crafting and for decoration. As versatile as it is when used properly, when you need to wash felt that's become stained or soiled, your options are few. Here are the pros and cons of the two primary methods for washing felt. No matter what technique you use to clean felt, be sure that any water used is cold.