Tip 1: Have an Annual Inspection
should take place at least twice a year, preferably
in the spring and autumn, recording and reporting
all changes in the condition of the roof.
for the following conditions: roof surface problems
such as blisters or bubbles, worn surfaces,
open seams, visible cracks, ruptures or other
holes and loose surfaces or fasteners.
- Drainage problems such as standing water, clogged
drains and gutters, and bent or missing drain
covers; flashing problems including cracks,
holes, rust, missing flashing and failed caulking
at joints between flashing and parapet walls;
masonry problems on parapet walls.
- Such as deteriorated
mortar joints, brick, coping stones and
accumulation of debris.
- Such as old roofing materials
and household rubbish.
Below you can see some classic Flat Roofing repair issues
2: Check Roof After Storms, Snow or Heavy Rain
- It is also important to check the roof during
and after a heavy rain to see how any water is being
drained away from the building and if gutters
and outlets are clogged. In addition, check
the underside of the roof, especially the edges,
from the attic for detection of leaks.
water (also called ponding) is a sign of drainage
problems. Leaks will occur if there are any
defects in the roof membrane or flashing.
3: Avoid Surface Damage
- Flat roofs are frequently used as platforms
for mechanical equipment, signs and braces, where improper mounting and flashing causes
using the roof as a staging area for parapet,
steeple or mechanical repairs, where outside
contractors can be careless about protecting
you’re having any work carried out that
requires access from your flat roof make sure
you insist that any contractor protects the
flat roofing surface with 18 mm timber boards,
which should not be placed on top of any existing
reflective chippings as these can puncture the
4: Repair Quickly
a roof leaks, damage to the building becomes
costly to repair. For example, wet insulation
boards and rotting decking require roof
a problem be discovered during inspection,
the correct diagnosis and its prompt repair
will save money by prolonging the life
of a roofing system.
punctures, worn bituminous coatings, open seams,
failed flashings and other problems before
serious leaks develop. Remember, once a flatroof leaks, damage to the building becomes
costly to repair.
example, wet insulation boards and rotting decking
require roof replacement. Any temporary repairs or professional roofing
work should be completed before winter.
temporary repairs to roll asphalt or modified
bitumen roofing can be performed by a good Flat
Roofing contractor, however,
it is important to avoid the indiscriminate
use of bituminous patching compounds (such as
roofing tar) for repairs. These
temporary repairs can be harmful to building
materials and difficult to remove at a later
good alternative to the normal flat roofing
repair materials commonly purchased at most
DIY stores is manufactured by a UK based company
and called Acrypol. This
is classed as a liquid membrane which is easy to use
and can purchased from any Jewson's or Asphaltic
5: Know When to Repair or Replace
- Many home owners try to extend the life of a
flat roof by continually repairing the surface.
This decision may ultimately cost them more
in the long run due to increased attention and
damage caused to interiors and structural systems
by the constant ingress of water.
- According to the NRCA/ARMA Manual, roof replacement
is recommended when the roof has exceeded its
expected service life and it shows evidence of
advanced deterioration: insulation is wet, deteriorated
or poorly attached or numerous leaks of a serious
nature have developed in the roof membrane.
most felt roofs the average life expectancy
can be around 10 to 12 years. This is very dependant
upon how exposed the roof is to the elements
as it is the extremes of temperature and UV
damage that can cause the most damage.
rather than re-covering the old roof with a new
membrane, is also necessary when the existing
roof membrane is not a suitable substrate for
a new roof covering, or two or more roof coverings