Valley gutter requirements are set out in e2 as1.
Gutter board dimensions.
It s your choice whether to use rough sawn or smooth lumber.
The planks of wood themselves shall be 15cm wide by 2cm thick.
For half rounds 5 inch should be used for up to 2500 sq feet and 6 inch for up to 3 840 sq ft.
Sometimes also called soffit board fascia is a board running horizontally under a roof edge.
They may only be installed where the roof pitch is greater than 8.
For a 5 inch k style gutter the square footage should be up to 5 500 sq ft and for a 6 inch k style gutter the square footage should be upto 7 900 sq ft.
The width depends on the width of the rafters but since builders generally use two by six or two by eight lumber for roof construction the most common dimensions for fascia boards are one by six and one by eight inches.
Downpipes are available in four sizes.
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.
5 inch standard k style gutter shop 5 gutterbrush.
After you have calculated the square footage use following calculations.
The gutterboard itself shall have the following dimensions 0 60m long and the two planks used to form the triangle shall be 0 25m wide at the base.
They can be 4 5 or 6 inches.
Typically consisting of wood wood substitute or metal the fascia board along with the soffit encloses the attic space of the home.
Rainline gutters are available in two shapes and five sizes.
It covers the openings between the rafters of the roof.
They must be a minimum of 250 mm wide if receiving run off from a spreader.
Half round gutters r size mm d mm d mm 100 107 17 125 3 7 150 155 17 190 192 22 size mm di mm 75 75 87 87 100 100 120 120 rectangular gutters.
See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.
Measure your gutter across the top from the back where the gutter meets the home to the outer edge.
They must have a minimum depth at the centre of 50 mm.
Pvc as a fascia material.
75mm 87mm 100mm and 120mm.
Downspouts also come in different sizes such as 2 3 inches and 3 4 inches in size.
When you are completing a gutter replacement the first point to note is that gutters come in different sizes.
