Framing A Room On A Tar Roof Detail

Unlike a slanted roof a flat one is directly exposed to all of the elements.

Framing a room on a tar roof detail.

The importance of building it right photo by russell kaye. Many home builders use roof tar when constructing a flat roofed house. While tar and gravel roofing or built up roofing systems have many positive aspects if you live in an area or the roof is in a location where it will receive strong sun exposure hot tar roofs will likely damage the roof s membrane if it is left uncovered or unevenly covered by the gravel. Roofing tar is often used for tar and gravel roofs or to fix leaks on a roof.

This kind of material is incredibly resistant to the ultraviolet rays from the sun. This will the first point of the rafter measurement line using the results of your rafter length calculation measure from this point along the rafter measurement. Also known as the built up roof bur this type of flat roof features three or more layers of waterproof material mixed in an alternating fashion with hot tar and a layer of smooth stone like gravel. Roof framing rafter layout.

But the horizontal lines of this 8 by 13 foot flat roof section at the cambridge tv project house make it vulnerable to heavy snow and pooling rainwater which is why it must be built to last. Pros and cons of roofing tar. Roofing tar will also protect your roof from wind and from snow and water which can collect on a flat roof. Sheathing goes down quickly on a roof that isn t sloped and thus provides some footing.

Roofing tar is a good choice for a flat roof as this kind of material is highly resistant to the ultraviolet rays from the sun. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark.