Disadvantages of L shaped Stairs: 1  L shaped stairs are a bit more difficult to build. 2  A support is typically required for the landing in a L type stair. Often this is built into the surrounding walls so it goes unnoticed. 3  Handrails for these types of stairs require more skill and planning to construct. In climates where basements are used, stairs are typically stacked over each other for efficient use of space. Since basements are often used for storage, large items can be difficult to move in and out of the basement.
A valley roof is formed when two portions of the roof meet at an inside angle. These valleys are common to many roofs. The Cape Cod style of architecture is one type of home that is traditionally free of valleys if there are no dormer windows on the roof.
Galvanized corrugated panels are a type of roofing material made from steel. This steel is in sheet metal form and is crimped. Metal roofing panels are one of the most durable and long-lasting materials available for constructing roofs. Many come with a 50 year.Pro-Panel metal roofing is an increasingly popular choice for homeowners. When compared to conventional roofing materials such as asphalt shingles, the Pro-Panel.ivide by the width of the panel to determine how many will be needed for installation. Line up the first panel at the bottom corner of the roof near the lip and hammer it in place with 3-inch metal roofing nails. Insert about 20 nails into the humps of the ridges spread equally throughout the panel.