It is a waterproofing layer made of regular felt stacked above the solid.
Framing roof part names.
Joist in a flat roof a horizontal structural member over which sheathing is attached.
Gutters are vents that carry away the trickled rainwater.
Horizontal beams supported by posts and used to support the mid span of rafters to cover longer spans these are used in large buildings like the traditional large old barns in the us.
Pitch slope the number of inches of vertical rise in a roof per 12 inches of horizontal distance.
The future of framing is here we re extremely efficient at framing houses nowadays but the way we frame them is extremely inefficient.
Rafter blocking or cross bridging also found on floor joists and in some wall framing.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Fast and accurate wall framing in this video pro builder mike norton teaches fast and accurate wall framing and shares time saving tips for laying out assembling and raising walls.
It is a device used on the gabble roof or soffit to provide ventilation to the underside of the roof deck.
See roof framing ties beams for a description of roof framing components including collar ties rafter ties structural ridge beams other roof framing components problems.
Roof truss parts explained.
Rafters these are wooden beams that run from the top of the roof to the bottom.
Rake the slanting edge of a gable roof at the end wall of the house.
As you can see in the illustration below roofs have hip rafters ridge boards jack rafters and more.
One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.
Parts of a roof decking or sheathing roof edge or eaves edge attic saddle ridge valley underlay membrane eaves membrane underlay membrane drip edge roof vents deflector plumbing vent flashing joint covers shingles.
Hip this is an external angle formed by the intersection of two sloping roof planes.
Roof framing involves a lexicon all its own.
When working on a roof it pays to be familiar with these terms.
It is the lower part of the roof that extends beyond the side of the house.
A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.
Rafter a structural member usually slanted to which sheathing is attached.
Truss the truss is a framework comprised of wooden beams that helps to support the roof.
The rafters when combined together help to form the truss.
Here is a closer look at common roofing terms.