Conducting a roof restoration on your house is among the most proactive action you can do as a homeowner. Any faulty or compromised roof should be fixed early to save on extravagant and unnecessary costs in the future. Having trees around your compound can be the major cause of the compromised roof. Cut off the limbs that hang low near the house then embark on restoring. Below is a step-by-step guide for concrete tile roof or metal roof restoration.
STEP 1: Make Necessary Repairs
If you are considering roof replacement, you probably already have the areas that need immediate fixing in mind. For a tiled roof, first, replace any broken tiles. As for a metal roof, do tile replacement first. You should do this and other mild repairs such as these first.
STEP 2: Pressure Cleaning
This is the second stage of roof restoration. Pressure cleaning should be done with at least 3000 p.m. (pound per square inch) pressure.
Cleaning a tiled roof needs special care. A 10-year-old roof will have a chalky layer because of oxidation. This oxidized layer, along with any other dirt in the craters should be thoroughly removed at this stage.
Special care should also be given to the ends of the tiles which turn black over time. Such a task should be handled with utmost care because if done poorly, you risk flooding the ceiling cavity. The aim is to get the top and ends of the roof clean without flooding the ceiling.
STEP 3: Re-bedding and Pointing
Bedding and pointing go hand in hand. Bedding holds the tiles in place while pointing creates a tighter seal. Re-bedding involves laying ridge caps on a new concrete bed. With the help of bedding rails, you can get a neat and straight bed.
A day after bedding you can now apply the pointing. The pointing should be done with a pointing trowel of 3mm to 5mm thickness. However, if the ridge caps are fixed, rebidding is not necessary and you can skip the bedding stage and just do the pointing.
STEP 4: Apply Sealer/ Primer
You should do this the next day after pointing. Gal primer is suitable for metal roofs. The primer is applied using an airless paint machine.
STEP 5: Filler Coat plus 2 Topcoats
A filler coat helps to smooth out the bare or rough surface of a tiled roof. With a tiled roof, if the roof is quite bare and/or rough, then you should use a filler coat to build the surface, smooth it out and avoid a patchy look. For filler coat, a tip of about 5/12, larger than the one used for the primer application stage. As for topcoats, a tip of 5/19 is sufficient.
STEP 6: Hand Painting
This is the finishing touch. You do it for parts the spray gun cant access. When dealing with paints, make sure you check their recommended drying times and the correct spraying procedure and health and safety standards.
A roof restoration is a great way to make your house exterior look great again, and it wont break the bank either.