Metal Roof Purlin Installation

This is by far the most common way to install a metal roof.

Metal roof purlin installation.

Metal roof purlins are installed horizontally under metal roofs. Before you install metal roofing repair any damage to the wood under the shingles. The roofing is manufactured in panels that. Installing wood stripping under a tin roof.

An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing. Then cover the entire roof with a layer of insulation and secure it with a staple gun. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. They are also popular for the people who like to install the roof themselves because the process is easier.

Metal panels has great resistance to bugs and fires to the extreme condition such as snow wind and storm. Once you ve done that add your metal roofing panels beginning at the longest peak to. The purlin are ultimately used to fasten the roof steel providing a diaphragm effect along with the siding when properly engineered and installed. The topic we want to discuss today is the purlin installation.

You would have to measure the roof and drill the screw holes in the locations of the metal purlins. Setting corrugated metal roof purlin spacing in a proper distance is an important part of the entire process. Tin roofing also known as metal roofing is considered more durable than composition or wood shingles. Let s take a look at the most common types of metal roofs for houses.

In addition if the metal roofing panel is being installed over metal purlins the spacing of the purlins might make it tricky to pre drill the sheeting in advance. They give added support to the roof and also provide a nailing surface for the end panels and drip edge. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.

The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to. Spacing is typically 24 on center in low snow loads and is reduced based upon truss span and snow load. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.