Does fascia board go under roof sheathing?

Measure up the rafter 45-3/4 inch from the cut end of the truss tail and snap a line along the trusses. This indicates the upper edge of the first row of roof sheathing—leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.

Does fascia go on before roof?

Once the roof is on you can start the fascia/soffit installation, ideally before the tiles or other roofing material go on. … In that instance mesh is used to stop birds or anything else getting into the roof space.

Do you need Hclips on roof sheathing?

For the most common roof sheathing in our area, which is 1/2” nominal (7/16” actual) sheathing over trusses or rafters at 24” on center, there is no requirement for H-clips. … One or two H-clips will often allow a longer span between roof trusses/rafters.

What goes on after roof sheathing?

Plywood or oriented strand board (OSB) sheathing will be applied to the exterior walls and the roof to seal off the inside. After sheathing, house wrap (a protective barrier that prevents water from entering the structure and causing mold or wood rot) is also applied.

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What does the fascia board connect to?

The fascia board is the vertical face that is attached to the ends of the rafters directly under the roof line. Fascia is typically made from 1-inch thick lumber.

Should sheathing overhang fascia?

Ideally the sheathing should be on top of the fascia without extending beyond it. Guesswork can create a situation in which it extends too far and it interferes with flashing installation, or you have to cut it. If the fascia is to be one layer of 1x, I overhang the sheathing 5/8.

What goes on first fascia or soffit?

Fascia and soffit are installed after the roof installation is finished. It is ideal that soffit and fascia materials be installed before you place tiles or any other type of roofing material on the roof. There are different types of finished and variations that can be used for the soffit.

Why do you need plywood clips?

Plywood clips, also referred to as H-clips or panel edge clips, are small metal brackets placed between the unsupported edges of plywood sheathing to effectively reduce the support spacing and stiffen the plywood.

Are H clips required for 5/8 roof sheathing?

5/8” thick panels having a span rating of 40/20 can have an unsupported edge up to 32”. This means that 1/2” and 5/8” thick roofing panels that are supported by roof framing (rafters or trusses) spaced at the typical 16” or 24” o.c. do not require edge support (H-clips).

Do you need H clips on OSB?

Anyone installing 7/16″ OSB or plywood on 24 inch spans without end supports (clips) is in violation of “commonly accepted building standards” (the IRC) unless your jurisdiction has chosen to exclude that requirement by law.

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Do I need sub fascia?

Though not required by building codes, the reasons for subfascia have more to do with evening out the rafter tail irregularities, and providing structural support for the roof edge and gutters. … Another reason many trim manufacturers include 2x subfascia in their installation details is for gutter support.

Can I use screws for roof sheathing?

Screws can be used for even greater withdrawal strength, but should be sized by the building designer. Staples are not recommended for roof sheathing attachment in high-wind areas. It is extremely important to have proper fastener spacing on all panels.

Is OSB or plywood better for roof sheathing?

Plywood Holds the Moisture Advantage Over OSB

When plywood gets wet, it tends to swell. … OSB takes longer than plywood to get saturated, but also takes much longer to dry out. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks.

How thick should fascia board be?

Replacement fascias do vary in thickness by manufacturer, but the rule of thumb is that to qualify structurally as a replacement board they should be somewhere between 16mm and 25mm thick – our most common range is the 18mm Replacement Fascia.

Where does fascia go on a house?

The fascia board is the one mounted at the point where the roof meets the outer walls of the house and is often called the ROOFLINE. However most people refer to it by the name of the main board that carries the gutter – the fascia or fascias.

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