How Do You Clean A Mohair Roof

I was in halfords for ages the other day but couldnt find anything that actually said suitable for mohair roofs i could only find vinyl roof cleaners i d be grateful for any advice as i dont wanna ruin it.
How do you clean a mohair roof. Of laundry strength liquid chlorine bleach and water. However the roof needs a good clean looks like noones done it in years and i dont know what to use is there anything you can recommend. The best place to clean the roof top is on a shade. This type of brush can be found at most grocery stores and contains hard bristles typically used to remove lint from clothes.
Cleaning the roof top in direct sunlight. Once the roof is completely covered and you have worked in the product take 5 put your feet up with a cup of tea and a newspaper. You may need to apply a little more pressure to seams and where the hood meets the bodywork of the car. For more general cleaning hand wash mohair garments with cold or tepid water and a gentle wool or delicate fabric soap.
Scrubbing the rag top to remove stains. Now you need to rinse off the product with clean water until the water runs clear. You can even opt to wait until morning or evening for cleaning. The uv rays in combination with water will lead to premature wear and tear of the material.
Brush in the same direction as the nap of the mohair. This is the best way to clean a roof if you have asphalt shingles. Taken from the new rac handbook caring for your car s bodywork and interior by simon nixon.