Roof Construction Methods

A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc.

Roof construction methods.

Piece by piece rafter roof construction however is still the more common construction method for many buildings. There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Hot tar and gravel. Next we ll examine various types of roofs and rafters and techniques.

Pitched roof construction. Ventilation of the roof deck speeds the evaporation of water from leakage or condensation and removes heat which helps prevent ice dams and helps asphalt shingles last longer. Fundamentals of roof design and construction. And homeowners have a vast selection of materials colors prices and other features from which to choose.

Specify ventilation rates as a minimum of 1 sq ft 0 093 m 2 of opening per 150 sq ft 14 m 2 1 150 with a ratio of 1 300 in some conditions. Traditionally wall plates were attached to the wall by bolts a method still employed by some roofing contractors in addition to the straps. For example if your roof measures 10 feet 3 0 m x 10 feet 3 0 m and the slope of the roof is 12 12 giving a slope factor of 12x12 12x12 12 converts to 1 414 in decimal form you would multiply 10 x 10 x 1 414 to get the total of 141 square feet of roofing. There are two basic methods of pitched roof construction.

For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. But before discussing roof framing we will first review some basic terms and definitions used in roof construction. Building codes in the u s. Over the centuries roof building techniques have been refined to yield roofs of considerable strength and durability.

In many areas concrete roof construction also allows structures to bypass certain building codes and can also cut down on insurance premiums. A wide variety of materials has been developed that will last many years in some cases as long as the house. This is more of a traditional manner in regards to cutting the timber while onsite and building up the roof by the use of rafters ridge boards joists and purlins among others. This can be determined by the size of the timbers or the size of the roof.

We will then discuss the framing square and learn how it s used to solve some basic construction problems. One pitched roof construction method is a cut roof method. The final price tag for a residential concrete roof runs pretty high often two to four times as much as a traditional wooden roof would cost source.