The Contractor is to "design" the laid to falls insulation to provide an adequate fall to the existing parapet gutter
line to the north side of the roof and ensure that at its thinnest point that a u value of 0.
Sloping roofs have an eaves gutter, flat roofs have a parapet gutter
, and a number of sloping roofs meeting at one point have a valley gutter, which links up with either an eaves or parapet gutter
One area of gutters that we often overlook is the hidden valley or parapet gutter
Flat roofs have a parapet gutter
and a number of sloping roofs meeting at one point have a valley gutter, which links up with either a parapet or eaves gutter.
I THINK it was the American architect Frank Lloyd Wright who said: "Anyone in my firm can design a building with a parapet gutter, as long as they pick up their cards at the end of the week.
The problem is that, unlike the normal overhanging rainwater gutter, if the parapet gutter blocks up, then it overflows into the building rather than on to the ground beneath.
The valley and parapet gutter failures are only apparent when water soaks into the roof space and you get a damp patch on the ceiling.
Valley and parapet gutters are common on older, larger properties but they are often found where there has been an extension.
together with new parapet gutters
, coping covers, flashings etc.