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.
The differences between emails and letters is that, emails are send electronically and arrives faster to the person that you are sending it too, while in the other hand letters takes a little bit longer to arrives to the person and can be lost from the mailing company especially whens sending it overseas also it cost money.
You write most business letters with the intention of getting the reader to respond. 1  Write your business letters with a clear purpose, making those letters error-free, friendly, and pertinent. All business correspondence should be on company letterhead, and the form of the rest of a business letter is standardized. All business letters have the following elements: Dateline: Three to six lines beneath the letterhead, flush left or right. The dateline contains the month (fully spelled out), day, and year.