When considering the cost of roofing materials, many people take into account just the shingle prices. This is incorrect, as a roof made just of roofing shingles will not work. You also need to consider all the accessories that are included in a complete roof system.
Business letters tend to have both the sender and receiver's address and the date at the top of the page and they begin with a polite salutation, such as dear Mr. and Mrs, followed by a blank line before the body or the content of the letter.
Answer   You write your letter as usual, then mail it Certified, at a US Post Office.   Be certain, though, as you would for any business or legal matter, that your â¦ letter contains the name and address of both yourself and recipient, and is dated. A certified letter should be written just as any other business letter, but you should note above the name and address of the person to whom it is addressed Sent Certif â¦ ied Mail, Article No. *********** The Article Number should correspond to the Certified Mail Receipt form (PS Form 3800) from the USPS.