Posts Tagged roofing
The Correct Application Of Roofing Mortars.
Posted by SEO SERVICES in Building and Construction on March 21st, 2011
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.
If the cement mix is not applied properly it will cause cracking.. 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.
If the mix is allowed to dry out too quickly it will cause problems. 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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Facts About Hiring A Roofing Contractor
Posted by SEO SERVICES in Building and Construction on July 8th, 2010
When you have to have to have your roof replaced the company you hire and the roofing materials they use will have a big impact on how the occupation holds up and what it looks like, so you will need to hire wisely. The initial step is to locate a roofing organization that you feel comfortable working with that is professional and has a great reputation. Referrals from neighbors, friends or family are a great way to find a roofer to get a bid, but you can also use the yellow pages or do an internet search. Ideally you have to have to get at least five written bids so you can do a comparison. Make sure the contractors that bid on your work are mindful that they are not the only ones bidding. Most contractors are aware that household owners will get other bids but it is a courtesy to let them know.
Ahead of you employ anybody there are some issues you should appear for. The contractors you choose to bid on your project need to have an active license in your state and no active complaints on their record. You can examine out your local Denver roofers through the state contractor’s board either online or by calling the board. If the contractor is late for your scheduled appointment to put in a bid and doesn’t call or demonstrate up, this is a red flag that you need to 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 present a lot of improvement once you sign a contract.
After you retain your Denver roofing company and ahead of they begin any work on the property you require to get a worker compensation insurance policies certificate from your roofer with your name on it. This will make certain that if there are any injuries on the employment you and your home owners insurance plan 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 business won’t price you or your residence owners insurance plan.
You will also likely require a work permit from the city for the job to be started and the roofing company should be the one to get this, not you. Any company that tells you to take care of it simply because it’s more affordable for you to do than him is giving you one more red flag, it doesn’t price more for the contractor to get the permit than it will charge you and it must be included in the bid price.
Last but not least when the work is done and the contractors are ready to be paid their final check you need to have to have the roofing organization sign a material and labor release so the suppliers can’t come after you financially if your roofing does not pay them for the components you paid for. If you follow these ideas your roofing employment need to go quite smoothly.
