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In areas prone to seismic movement, a lot of property owners are giving some thought to replacing the pointing on their roof. Constant shifting and ?knocks? can loosen the mortar and lead to a leaking roof.

There are two options when replacing your roof pointing. Traditional cement based pointing and flexible water based polymer pointing.

Traditional cement based mortar is attractive and has stood the test of time over many centuries. Provided it is laid by skilled craftsmen, it will add to the appearance of your home and give years of maintenance free protection. Correct mixing and application is critical and should be carried out by an experienced roof contractor. Mortar can be dyed to match the surrounding roof tiles and is considerably cheaper than flexible pointing pastes.

The ratio of sand and cement is very important. It is essential to get the correct mix of cement and aggregates. If insufficient cement is included in the mix it will become too weak and deteriorate faster. A good ratio for roofing cement is three parts sand to one part cement. The mix should be turned sufficiently to ensure an even distribution of cement.
It is very important to slow down hydration of the mix.. This is especially important in warmer weather. If the roofing mix is allowed to dry too quickly it will result in a poor bond. The cement will not attach properly to the roofing.
The cure time can be slowed by keeping the pointing mixture damp. Old carpet soaked in water is laid on top of the ridge tiles. This traps in moisture and stops the sun prematurely drying out the mortar. This will prevent cracks and extend the life of the roof pointing.

Flexible roof pointing paste comes in a variety of colours to match the roof.Acrilic roof mortar comes in a variety of colours. It offers a secure fixing at the pointing stage and remains flexible. Again, providing it is applied properly it will give a neat and attractive appearance to your roof. The added benefit of flexibility gives a better fixing in areas with ground movement.

Ridge tiles are bedded in the normal way using traditional cement. The pointing is then applied 3 to 5mm thick. Flexible acrylic pointing is more difficult to apply than cement mortar. If done incorrectly the surface has a tendency to drag leaving a rough finish. With practice it is possible to achieve a smoother steel like finish.
If you always keep your trowel wet it will stop the acrylic sticking. Do not add water to the pointing paste. It doesn?t work and ruins the pointing. You need to apply flexible pointing in a clean movement. Apply it smoothly and don?t overwork the surface. The pointing needs at least three hours to ?skin?. If it rains even lightly the pointing will have to be re-done.

I still prefer the look of traditional pointing over acrylic pastes. Further, traditional mortar is time tested and durable. However in areas of high seismic movement the new breed of roofing mortars are well worth considering.

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When you will need to have your roof replaced the contractor you hire and the roofing materials they use will have a huge impact on how the occupation holds up and what it looks like, so you require to employ wisely. The 1st step is to locate a roofing firm that you feel comfortable working with that is professional and has a good reputation. Referrals from neighbors, friends or family are a good way to discover a roofer to get a bid, but you can also use the yellow pages or do an net search. Ideally you require to get at least five written bids so you can do a comparison. Make certain the contractors that bid on your occupation are conscious that they are not the only ones bidding. Most contractors are aware that property owners will get other bids but it is a courtesy to let them know.

Before you retain anybody there are some things you ought to appear for. The contractors you choose to bid on your project ought to have an active license in your state and no active complaints on their record. You can check out your local Denver roofers via the state contractor’s board either on the web or by calling the board. If the company is late for your scheduled appointment to put in a bid and doesn’t call or indicate up, this is a red flag that you should pay attention to. A roofer who fails to act professionally when they are trying to impress you and get your company is not going to show a lot of improvement as soon as you sign a contract.

Immediately after you retain your Denver roofing company and before they start any work on the property you will need to get a worker compensation insurance certificate from your roofer with your name on it. This will ensure that if there are any injuries on the occupation you and your house owners insurance policy won’t be financially responsible. You also have to have to get a liability insurance coverage certificate in your name from the roofer so that any harm to your property caused by the firm won’t fee you or your residence owners insurance coverage.

You will also likely require a operate permit from the city for the employment to be started and the roofing company must be the one to get this, not you. Any company that tells you to take care of it since it’s less expensive for you to do than him is giving you an additional red flag, it doesn’t cost more for the company to get the permit than it will charge you and it should be included in the bid price.

As a final point when the job is carried out and the contractors are ready to be paid their final verify you require to have the roofing business sign a material and labor release so the suppliers cannot come soon after you financially if your roofing does not pay them for the components you paid for. If you follow these ideas your roofing career need to go very smoothly.