If the cavity between the rafters trusses is filled with insulation and is air tight like the walls you will need a vapour barrier.
Part of building directly under the roof.
I did the first part right.
The roof primary structure.
Every part of a roof has a specific purpose to ensure protection of a house from the elements.
This occurs on pitched roofs with sloping planes that join along their.
A roof is designed to be water tight and properly constructed and maintained it will be.
Improper selection of the roof underlayment may allow.
This ensures complete coverage and gives the finished roof an attractive visual pattern.
Starting on the left side of the roof at the eave place the first full shingle strip directly over the starter course at the eave and rake edges.
Slope a roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.
The attic must be ventilated to protect the roofing system against excessive heat in summer and warm moist air generated by the house in winter.
Counterflashing the flashing that is embedded or.
Hip a downward sloping junction of the roof where sloping sides meet.
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.
Ridge the top peak of a gable roof running horizontally where two sloping sides meet.
A measurement of roof area that equals 100 square feet an area 10 feet by 10 feet.
1 strip the shingles expose the deck install a fully adhered membrane and go to town with rigid insulation.
Cornice the wood or metal finishing at ends or edges of a building including a fascia frieze or rake.
Like a puzzle each part works with the others to enhance the strength and security of the roof while providing flexibility for design options.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
It is a waterproofing layer made of regular felt stacked above the solid.
Built up roof a low slope or flat seeming roof covered with alternating layers of roofing felt and hot mopped asphalt and topped off with a layer of gravel.
The lower part of the roof.
The metal roofing system and its expected service life the climate at the building location roof slope and geometry and ambient conditions temperature relative humidity within the building.
It is attached directly to the decking along the bottom of the roof slope and above the underlay on the sides of the roof.
The same roof has a 4 12 or 1 3 pitch.
A roof does get hotter than the walls in the summer but doesn t matter at least in colder climates.
The pattern is begun in this manner.
Depending on the style components of a house roof may vary beyond the basic parts.
Long term in service roof performance can be affected by several important factors including.
The space under the roof.